Zeitschriftenartikel: „Integrated valorization“

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Ziller, Francesca. „Integrated Assessment for a Sustainable Valorization Project“. SCIENZE REGIONALI, Nr. 1 (Februar 2014): 71–92. http://dx.doi.org/10.3280/scre2014-s01004.

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Flórez-Fernández, Noelia, Marta Illera, Marta Sánchez, Pablo Lodeiro, María Dolores Torres, María Elvira López-Mosquera, Manuel Soto, Manuel Sastre de Vicente und Herminia Domínguez. „Integrated valorization of Sargassum muticum in biorefineries“. Chemical Engineering Journal 404 (Januar 2021): 125635. http://dx.doi.org/10.1016/j.cej.2020.125635.

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Dixon, Richard A., Allen Puente-Urbina, Gregg T. Beckham und Yuriy Román-Leshkov. „Enabling Lignin Valorization Through Integrated Advances in Plant Biology and Biorefining“. Annual Review of Plant Biology 75, Nr. 1 (22.07.2024): 239–63. http://dx.doi.org/10.1146/annurev-arplant-062923-022602.

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Despite lignin having long been viewed as an impediment to the processing of biomass for the production of paper, biofuels, and high-value chemicals, the valorization of lignin to fuels, chemicals, and materials is now clearly recognized as a critical element for the lignocellulosic bioeconomy. However, the intended application for lignin will likely require a preferred lignin composition and form. To that end, effective lignin valorization will require the integration of plant biology, providing optimal feedstocks, with chemical process engineering, providing efficient lignin transformations. Recent advances in our understanding of lignin biosynthesis have shown that lignin structure is extremely diverse and potentially tunable, while simultaneous developments in lignin refining have resulted in the development of several processes that are more agnostic to lignin composition. Here, we review the interface between in planta lignin design and lignin processing and discuss the advances necessary for lignin valorization to become a feature of advanced biorefining.

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Mohafid, Said, Laila Stour und Ali Agoumi. „Multidimensional valorization of sediments trapped by dams for sustainable and integrated water resources management“. Multidisciplinary Science Journal 6, Nr. 8 (20.02.2024): 2024146. http://dx.doi.org/10.31893/multiscience.2024146.

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This article introduces an innovative demarche to sustainable and integrated water resource management by proposing a new strategy for valorizing sediments retained by dams, explicitly focusing on the Moroccan context. The novel demarche presented encompasses five critical dimensions related to sediment valorization: quality, quantity, space, time, and regulation. To achieve this, we have designed an optimal valorization approach complemented by a specific valorization guide tailored to the nuances of Moroccan laws and standards. Our methodology includes a detailed quantitative analysis of retained sediments, a qualitative assessment of their physical and chemical properties, and a spatiotemporal analysis of dam siltation. The optimal valorization approach aims to maximize the use of retained sediments by identifying suitable applications. Simultaneously, the specific guide provides a methodological and regulatory framework aligned with the region's legal requirements. The quantitative analysis evaluates measures taken to quantify sediments retained by dams, while the qualitative analysis assesses their physical and chemical characteristics and suitability for various applications. The spatiotemporal analysis offers a dynamic perspective on dam siltation, emphasizing the most affected areas and the evolution of trends over time. Anchored in the Moroccan context, this research provides crucial insights into the sustainable management of water resources through the integrated valorization of sediments trapped by dams. The presented results have significant implications for watershed management and the optimization of dam operations and reservoirs. Furthermore, they pave the way for similar approaches in regions grappling with reservoir sedimentation issues.

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Hidalgo, Dolores, Francisco Corona, Jesus M. Martin-Marroquin, Marta Gomez, Alicia Aguado und Gregorio Antolin. „INTEGRATED AND SUSTAINABLE SYSTEM FOR MULTI-WASTE VALORIZATION“. Environmental Engineering and Management Journal 13, Nr. 10 (2014): 2467–75. http://dx.doi.org/10.30638/eemj.2014.276.

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Conidi, C., A. Cassano und E. Garcia-Castello. „Valorization of artichoke wastewaters by integrated membrane process“. Water Research 48 (Januar 2014): 363–74. http://dx.doi.org/10.1016/j.watres.2013.09.047.

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Luo, Yiping, Zhichen Zhao, Bin Jiang, Min Wei, Zheng Zhang, Lisha Zeng, James H. Clark und Jiajun Fan. „An integrated process for the valorization of corn stover promoted by NaCl in a GVL/H₂O system“. Green Chemistry 24, Nr. 4 (2022): 1515–26. http://dx.doi.org/10.1039/d1gc03999g.

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Zhang, Qing, und Hongjuan Zhang. „Assessing Agri-Food Waste Valorization Challenges and Solutions Considering Smart Technologies: An Integrated Fermatean Fuzzy Multi-Criteria Decision-Making Approach“. Sustainability 16, Nr. 14 (18.07.2024): 6169. http://dx.doi.org/10.3390/su16146169.

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With the growth of the worldwide population and depletion of natural resources, the sustainable development of food systems cannot be ignored. The demand for agri-food waste valorization practices like high-value compounds production has received widespread attention; however, numerous challenges still exist. The present study aims to identify those challenges of agri-food waste valorization and propose effective solutions based on smart technologies. Based on a systematic review of the literature, the study combs existing challenges of agri-food waste valorization and constructs a six-dimension conceptual model of agri-food waste valorization challenges. Moreover, the study integrates a Fermatean fuzzy set (FFS) with multi-criteria decision-making (MCDM) methods including stepwise weight assessment ratio analysis (SWARA), decision-making trial and evaluation laboratory-interpretative structural modeling method (DEMATEL-ISM), and quality function deployment (QFD) to evaluate the weights of each dimension, find causal interrelationships among the challenges and fundamental ones, and rank the potential smart solutions. Finally, the results indicate that the “Government” dimension is the severest challenge and point out five primary challenges in agri-food waste valorization. The most potential smart solution is the “Facilitating connectivity and information sharing between supply chain members (S8)”, which may help government and related practitioners manage agri-food waste efficiently and also facilitate circular economy.

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Barba, Francisco J. „An Integrated Approach for the Valorization of Cheese Whey“. Foods 10, Nr. 3 (09.03.2021): 564. http://dx.doi.org/10.3390/foods10030564.

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Taking into account the large amount of whey that is produced during the cheese production process and the constant demand by society for more sustainable processes, in accordance with Sustainable Development Goals (SDGs) and the circular economy concept, it is necessary to adapt two-unit operations into a single process, allowing us to not only valorize a part of the whey but the whole process, which is known as bioprocess integration. In this sense, the adaptation of different processes, for example, physicochemical (micro, ultra and nanofiltration) and fermentation, that are commonly used to obtain proteins, lactose and other compounds with different activities (antioxidant, antifungal, etc.) could be integrated to achieve a complete recovery of the cheese whey. Likewise, keeping in mind that one of the main drawbacks of cheese whey is the great microbial load, some innovative processing technologies, such as high hydrostatic pressures, electrotechnologies and ultrasound, can allow both the development of new foods from whey as well as the improvement of the nutritional and organoleptic properties of the final products prepared with cheese, and thus reducing the microbial load and obtaining a safe product could be incorporated in the cheese whey valorization process.

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Linger, J. G., D. R. Vardon, M. T. Guarnieri, E. M. Karp, G. B. Hunsinger, M. A. Franden, C. W. Johnson et al. „Lignin valorization through integrated biological funneling and chemical catalysis“. Proceedings of the National Academy of Sciences 111, Nr. 33 (04.08.2014): 12013–18. http://dx.doi.org/10.1073/pnas.1410657111.

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Talan, Anita, Bhagyashree Tiwari, Bhoomika Yadav, R. D. Tyagi, J. W. C. Wong und P. Drogui. „Food waste valorization: Energy production using novel integrated systems“. Bioresource Technology 322 (Februar 2021): 124538. http://dx.doi.org/10.1016/j.biortech.2020.124538.

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Castro-Muñoz, Roberto, und Jorge Yáñez-Fernández. „Valorization of Nixtamalization wastewaters (Nejayote) by integrated membrane process“. Food and Bioproducts Processing 95 (Juli 2015): 7–18. http://dx.doi.org/10.1016/j.fbp.2015.03.006.

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Filipe, Susana, Paulo Mira Mourão, Nazaré Couto und Davide Tranchida. „Towards a Sustainable Future: Advancing an Integrated Approach for the Recycling and Valorization of Agricultural Plastics“. Polymers 15, Nr. 23 (25.11.2023): 4529. http://dx.doi.org/10.3390/polym15234529.

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Plastic pollution has become a pressing environmental issue. The agricultural sector, in particular, is a significant contributor to this problem, given the widespread use of plastics in farming practices and a lack of and/or use of inefficient approaches for the recycling and valorization of agricultural plastic waste. This has resulted in the accumulation of these residues in landfills and/or their improper disposal, which has exacerbated their environmental impact, leading to negative consequences on soil, water, and ecosystems. This work provides an overview on the current methodologies available to address the challenges associated with inadequate management of agricultural plastics and highlights the need for a comprehensive and systematic methodology, involving material development, polymer processing, waste collection, sorting, and valorization. It emphasizes the importance of collaboration between polymer producers, polymer manufacturers, farmers, policymakers, waste management companies, and recyclers to develop effective, technical, and economically viable recycling and valorization schemes. This paper addresses gaps and provides guidance on possible solutions, specifically polymer development, policy instruments, regulatory frameworks, collection schemes, and the technical approaches required for the adequate valorization of agricultural plastic waste. Furthermore, it highlights the associated barriers and benefits of the different presented approaches. It also aims to promote awareness on agricultural plastic waste and provide guidance on the best approaches to reduce its environmental impact.

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Angheluță, L. M., L. Ratoiu, A. I. Chelmus, R. Rădvan und A. Petculescu. „INTEGRATED DIGITAL PLATFORM FOR THE VALORIZATION OF A CULTURAL LANDSCAPE“. ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-5/W1 (16.05.2017): 389–93. http://dx.doi.org/10.5194/isprs-archives-xlii-5-w1-389-2017.

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This paper presents a newly started demonstrative project regarding the implementation and validation of an interdisciplinary research model for the Aluniș-Bozioru (Romania) cultural landscape, with the development of an online interactive digital product. This digital product would provide complementary data about the historical monuments and their environment, and also, constant updates and statistical comparison in order to generate an accurate evaluation of the state of conservation for this specific cultural landscape. Furthermore, the resulted information will contribute in the decision making process for the regional development policies. The project is developed by an interdisciplinary joint team of researchers consisted of technical scientists with great experience in advanced non-invasive characterization of the cultural heritage (NIRD for Optoelectronics – INOE 2000) and a group of experts from geology and biology (Romanian Academy’s “Emil Racoviță” Institute of Speleology – ISER). Resulted scientific data will include: 3D digital models of the selected historical monuments, microclimate monitoring, Ground Penetrating Radar survey, airborne LIDAR, multispectral and thermal imaging, soil and rock characterization, environmental studies. This digital product is constituted by an intuitive website with a database that allows data corroboration, visualization and comparison of the 3D digital models, as well as a digital mapping in the GIS system.

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Singh, Ramkrishna, und Vijay Singh. „Integrated Biorefinery for Valorization of Engineered Bioenergy Crops—A Review“. Industrial Biotechnology 17, Nr. 5 (01.10.2021): 271–82. http://dx.doi.org/10.1089/ind.2021.0020.

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Kafková, Valentína, Róbert Kubinec, Jozef Mikulec, Miroslav Variny, Petra Ondrejíčková, Aleš Ház und Adriana Brisudová. „Integrated Approach to Spent Coffee Grounds Valorization in Biodiesel Biorefinery“. Sustainability 15, Nr. 7 (23.03.2023): 5612. http://dx.doi.org/10.3390/su15075612.

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With the increasing consumption of coffee beverages, an increased amount of food waste—spent coffee grounds (SCG)—is generated and disposed into landfills or combusted in incinerators. SCG are characterized as a highly polluting substance with partial toxicity due to the presence of caffeine, tannins, and polyphenols. It also contains 15% of oil on average, and its potential for biodiesel production is thus considerable. The aim of the presented work is to evaluate the possibility and technical potential of biodiesel production from the SCG oil (SCGO) by esterification and transesterification reaction. According to the characterization of the studied SCGO, this stream must be adjusted and purified to be utilized in the existing biodiesel production plant. Fatty acids (FA) represent 85.85% of the SCGO, with two dominant FAs—linoleic and palmitic acids. The necessity of removal and disposal of unsaponifiable matter, which accounts for 15% of the SCGO content, must be highlighted when producing biodiesel from the SCG. The objective of this research was the comparison of different biodiesel production processes, where a two-step transesterification process has been identified as the most successful method for biodiesel production from the SCGO with the highest ester content of 89.62% and the lowest content of unsaponifiable and unidentified matter in the final product. The novelty of the analyses is a characterization of the d unsaponifiable matter present in the SCGO, and the article highlights the importance of progression to be considered when evaluating the technical potential of the SCG biodiesel production integrated into a biorefinery. Nevertheless, the SCG biodiesel can contribute to fulfilling the mandatory share of advanced biofuel in the fuel energy mix given by national legislation and contribution to the circular economy approach of biorefineries.

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Arce García, Ivonne Yazmín, und María del Carmen Torres Salazar. „Valorization of Urban Solid Waste: An integrated and sustainable approach“. RAN. Revistas Academia y Negocios 10, Nr. 2 (2024): 193–209. http://dx.doi.org/10.29393/ran10-12vrim20012.

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Purpose: To propose a materials recovery system for the historic Center of Cuernavaca, Morelos, Mexico, with the aim of improving waste management and generating income for the municipality. Methodology: Information was gathered from electronic documents, interviews with local authorities, and companies. Additionally, a waste sampling was conducted to address an objective material recovery estimate, simulating three economic scenarios (including the participation of material reclaimers).Findings: The proposed system is viable, managing the recovery of the initial investment in the first year (baseline scenario), considering the donation of fixed assets by sponsors, resulting in a double return on investment.Practical implications: The study involves an on-site characterization sampling; thus, requires further detailed analysis.Originality: An inclusive economic system that generates income and employment is demonstrated, contributing to responsible waste management, compliance with regulations, and objectives of the 2030 agenda.

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Lappa, Iliada, Aikaterini Papadaki, Vasiliki Kachrimanidou, Antonia Terpou, Dionysios Koulougliotis, Effimia Eriotou und Nikolaos Kopsahelis. „Cheese Whey Processing: Integrated Biorefinery Concepts and Emerging Food Applications“. Foods 8, Nr. 8 (15.08.2019): 347. http://dx.doi.org/10.3390/foods8080347.

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Cheese whey constitutes one of the most polluting by-products of the food industry, due to its high organic load. Thus, in order to mitigate the environmental concerns, a large number of valorization approaches have been reported; mainly targeting the recovery of whey proteins and whey lactose from cheese whey for further exploitation as renewable resources. Most studies are predominantly focused on the separate implementation, either of whey protein or lactose, to configure processes that will formulate value-added products. Likewise, approaches for cheese whey valorization, so far, do not exploit the full potential of cheese whey, particularly with respect to food applications. Nonetheless, within the concept of integrated biorefinery design and the transition to circular economy, it is imperative to develop consolidated bioprocesses that will foster a holistic exploitation of cheese whey. Therefore, the aim of this article is to elaborate on the recent advances regarding the conversion of whey to high value-added products, focusing on food applications. Moreover, novel integrated biorefining concepts are proposed, to inaugurate the complete exploitation of cheese whey to formulate novel products with diversified end applications. Within the context of circular economy, it is envisaged that high value-added products will be reintroduced in the food supply chain, thereby enhancing sustainability and creating “zero waste” processes.

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Pietroni, E. „VIRTUAL MUSEUMS FOR LANDSCAPE VALORIZATION AND COMMUNICATION“. ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W5 (21.08.2017): 575–82. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w5-575-2017.

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Research in the domain of landscape virtual reconstructions has been mainly focused on digitization and recording inside GIS systems, or real time visualization, paying a minor attention to the development of a methodological approach for the landscape narration, combing different registers, conceptual, emotional incitements and, thus, able to arouse in the public a feeling of emotional “sensing” and self- identification. The landscape reflects also the human activities in the territory and the communities’ cultural patterns, their sense of “belonging”. In a virtual museum of landscapes, the multidisciplinary approach, the multiplication of perspectives and voices, storytelling, acquire primary importance. A Virtual Museum of landscapes should integrate both holistic and delimited visions. The holistic vision requires a diachronic approach, including both present and past phases of life. On the other side, delimited, or “monographic”, representations are useful to go deeper into specific and exemplar stories, regarding specific groups of people. Beside, the emergence of new social media enhancing cultural interactions among people induce the creation of specific social platforms for Cultural Heritage for the active participation of a large number of stakeholders. Co-creation scenarios and tools can be particularly promising. Aton is an example of front-end VR social platform in the web end, for the efficient streaming of medium/large landscape, their exploration and characterization. The Tiber Valley Virtual Museum is an example of sensorial cultural landscape. Starting from the acquisition of topographical data through integrated technologies, several multi-sensory scenarios have been created, inside which visitors can feel embodied and involved.

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Berlowska, Joanna, Katarzyna Pielech-Przybylska, Maria Balcerek, Weronika Cieciura, Sebastian Borowski und Dorota Kregiel. „Integrated Bioethanol Fermentation/Anaerobic Digestion for Valorization of Sugar Beet Pulp“. Energies 10, Nr. 9 (23.08.2017): 1255. http://dx.doi.org/10.3390/en10091255.

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Wilson, A. Nolan, Mariel J. Price, Calvin Mukarakate, Rui Katahira, Michael B. Griffin, John R. Dorgan, Jessica Olstad, Kimberly A. Magrini und Mark R. Nimlos. „Integrated Biorefining: Coproduction of Renewable Resol Biopolymer for Aqueous Stream Valorization“. ACS Sustainable Chemistry & Engineering 5, Nr. 8 (27.07.2017): 6615–25. http://dx.doi.org/10.1021/acssuschemeng.7b00864.

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Cortés, Antonio, Maria Teresa Moreira und Gumersindo Feijoo. „Integrated evaluation of wine lees valorization to produce value-added products“. Waste Management 95 (Juli 2019): 70–77. http://dx.doi.org/10.1016/j.wasman.2019.05.056.

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Kumar, Amit, Katherine R. Phillips, Janny Cai, Uwe Schröder und John H. Lienhard. „Integrated Valorization of Desalination Brine through NaOH Recovery: Opportunities and Challenges“. Angewandte Chemie 131, Nr. 20 (21.02.2019): 6570–79. http://dx.doi.org/10.1002/ange.201810469.

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Kumar, Amit, Katherine R. Phillips, Janny Cai, Uwe Schröder und John H. Lienhard. „Integrated Valorization of Desalination Brine through NaOH Recovery: Opportunities and Challenges“. Angewandte Chemie International Edition 58, Nr. 20 (13.05.2019): 6502–11. http://dx.doi.org/10.1002/anie.201810469.

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Meisel, Kathleen, Andreas Clemens, Christoph Fühner, Marc Breulmann, Stefan Majer und Daniela Thrän. „Comparative Life Cycle Assessment of HTC Concepts Valorizing Sewage Sludge for Energetic and Agricultural Use“. Energies 12, Nr. 5 (26.02.2019): 786. http://dx.doi.org/10.3390/en12050786.

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In many countries, sewage sludge is directly used for energy and agricultural purposes after dewatering or digestion and dewatering. In recent years, there has been a growing interest in additional upstream hydrothermal carbonization (HTC), which could lead to higher yields in the energetic and agricultural use. Twelve energetic and agricultural valorization concepts of sewage sludge are defined and assessed for Germany to investigate whether the integration of HTC will have a positive effect on the greenhouse gas (GHG) emissions. The study shows that the higher expenses within the HTC process cannot be compensated by additional energy production and agricultural yields. However, the optimization of the HTC process chain through integrated sewage sludge digestion and process water recirculation leads to significant reductions in GHG emissions of the HTC concepts. Subsequently, nearly the same results can be achieved when compared to the direct energetic use of sewage sludge; in the agricultural valorization, the optimized HTC concept would be even the best concept if the direct use of sewage sludge will no longer be permitted in Germany from 2029/2032. Nevertheless, the agricultural valorization concepts are not generally advantageous when compared to the energetic valorization concepts, as it is shown for two concepts.

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Shen, Yafei, Dachao Ma und Xinlei Ge. „CO2-looping in biomass pyrolysis or gasification“. Sustainable Energy & Fuels 1, Nr. 8 (2017): 1700–1729. http://dx.doi.org/10.1039/c7se00279c.

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This paper summarizes the thermochemical conversion of biomass using CO₂as a reaction medium. In the integrated valorization of biomass by pyrolysis or gasification, CO₂can play a vital role in each stage, including biomass pyrolysis, biomass/biochar gasification, biochar activation, and tar cracking/reforming.

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Naranje, Vishal, R. Swarnalatha, Ojas Batra und Sachin Salunkhe. „Technological Assessment on Steam Reforming Process of Crude Glycerol to Produce Hydrogen in an Integrated Waste Cooking-Oil-Based Biodiesel Production Scenario“. Processes 10, Nr. 12 (12.12.2022): 2670. http://dx.doi.org/10.3390/pr10122670.

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The current scenario of society is to produce fuel from renewable energy resources. The purpose of this research work is to develop an integrated approach for glycerol valorization and biodiesel production. Employing a range of methodologies widely used in the industry, technical analysis and assessments of the process’s applicability in real-world situations are also made. The integrated process plant is simulated using Aspen Plus®. Several different sensitivity analyses are carried out to describe the process that improves efficiency and are designed to maximize hydrogen recovery from the reforming section. The integrated process results are compared with several existing standalone biodiesel production processes. Additionally, the results are verified with the theoretical studies on glycerol valorization. The outcomes of the process plant simulation reveal coherent results with the current industrial standards for the two processes. The results show that the amount of glycerol produced (stream 7) is 60.72 kmol/h in mass flow rate, this translates to 7272.74 kg/h. The hydrogen produced is 488.76 kmol/h and, in mass flow rate, this translates to 985.3 kg/h. The total yield of hydrogen produced is around 13%. The biodiesel yield is at 92.5%. It shows a realistic recovery that would be attained if the process is implemented, contrary to theoretical studies.

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Dutta, Nalok, Muhammad Usman, Gang Luo und Shicheng Zhang. „An Insight into Valorization of Lignocellulosic Biomass by Optimization with the Combination of Hydrothermal (HT) and Biological Techniques: A Review“. Sustainable Chemistry 3, Nr. 1 (11.01.2022): 35–55. http://dx.doi.org/10.3390/suschem3010003.

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Biomass valorization plays a significant role in the production of biofuels and various value-added biochemicals, in addition to lowering greenhouse gas emissions. In terms of biorefining methods, hydrothermal (HT) and biological techniques have demonstrated the capability of valorizing biomass raw materials to yield value added end-products. An inter-disciplinary bio-economical approach is capable of optimizing biomass’s total potential in terms of environmental perspective and circular bioeconomy standpoint. The aim of this review is to provide an in-depth overview of combinatorial HT and biological techniques to maximize biomass value, which includes biological valorization following HT pretreatment and HT valorization of lignocellulosic substrates emanating from biocatalytic hydrolysis/anaerobic digestion and/or pretreated food waste for the ultimate yield of biogas/biochar and biocrude. In this study, we discuss recent advances regarding HT and biological treatment conditions, synergies between the two technologies, and optimal performance. Additionally, energy balances and economic feasibility assessments of alternative integrated solutions reported in previous studies are compared. Furthermore, we conclude by discussing the challenges and opportunities involved in integrating HT and biologicals methods toward complete biomass utilization.

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Gómez, James A., Luis G. Matallana und Óscar J. Sánchez. „Towards a Biorefinery Processing Waste from Plantain Agro-Industry: Process Design and Techno-Economic Assessment of Single-Cell Protein, Natural Fibers, and Biomethane Production through Process Simulation“. Fermentation 8, Nr. 11 (27.10.2022): 582. http://dx.doi.org/10.3390/fermentation8110582.

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The plantain agro-industry generates different residues in the harvest and post-harvest stages. Therefore, the design of processes for valorization is required. The aim of this work was to design and techno-economically evaluate the processes for the production of single-cell protein, natural fibers, and biomethane from plantain residues by process simulation in the framework of the design of a future biorefinery for valorization of these residues. The processes were simulated using SuperPro Designer. The scale size was calculated at 1,267,071 tons for the processing of plantain lignocellulosic waste (pseudostems) and 3179 tons for the processing of starchy waste (rejected unripe plantain fruits). The results obtained suggest that the best alternative for the valorization of plantain residues corresponded to the production of natural fibers, with a net present value of $29,299,000. This work shows that waste from the plantain agro-industry exhibits high potential as a feedstock for the production of value-added products. In addition, the process flowsheets simulated in this work can be integrated into the basic design of a biorefinery processing plantain waste.

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Wan, Xue, Fengpei Yao, Dong Tian, Fei Shen, Jinguang Hu, Yongmei Zeng, Gang Yang, Yanzong Zhang und Shihuai Deng. „Pretreatment of Wheat Straw with Phosphoric Acid and Hydrogen Peroxide to Simultaneously Facilitate Cellulose Digestibility and Modify Lignin as Adsorbents“. Biomolecules 9, Nr. 12 (08.12.2019): 844. http://dx.doi.org/10.3390/biom9120844.

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Effective valorization of lignin is crucial to achieve a sustainable, economic and competitive biorefinery of lignocellulosic biomass. In this work, an integrated process was proposed based on a concentrated phosphoric acid plus hydrogen peroxide (PHP) pretreatment to simultaneously facilitate cellulose digestibility and modify lignin as adsorbent. As a dominant constitutor of PHP pretreatment, H2O2 input and its influence on the overall fractionation/lignin modification performance was thoroughly investigated. Results indicated that wheat straw was fractionated more efficiently by increasing the H2O2 input. H2O2 input had a significant influence on the digestibility of the obtained cellulose-rich fraction whereby almost 100.0% cellulose-glucose conversion can be achieved even with only 0.88% H2O2 input. Besides, the adsorption capacity of lignin on MB was improved (74.3 to 210.1 mg g−1) due to the oxidative-modification in PHP pretreatment with H2O2 inputs. Regression analysis indicated that –COOH groups mainly governed the lignin adsorption (R2 = 0.946), which displayed the considerable adsorption capacities for typical cationic substances. This work shows a promising way to integrate the lignin modification concept into the emerging PHP pretreatment process with the dual goal of both cellulose utilization and lignin valorization.

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Kassim, Falilat O., C. L. Paul Thomas und Oluwasola O. D. Afolabi. „Integrated conversion technologies for sustainable agri-food waste valorization: A critical review“. Biomass and Bioenergy 156 (Januar 2022): 106314. http://dx.doi.org/10.1016/j.biombioe.2021.106314.

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Nemes, Silvia Amalia, Lavinia Florina Călinoiu, Francisc Vasile Dulf, Anca Corina Fărcas und Dan Cristian Vodnar. „Integrated Technology for Cereal Bran Valorization: Perspectives for a Sustainable Industrial Approach“. Antioxidants 11, Nr. 11 (31.10.2022): 2159. http://dx.doi.org/10.3390/antiox11112159.

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Current research focuses on improving the bioaccessibility of functional components bound to cereal bran cell walls. The main bioactive components in cereal bran that have major biological activities include phenolic acids, biopeptides, dietary fiber, and novel carbohydrates. Because of the bound form in which these bioactive compounds exist in the bran matrix, their bioaccessibility is limited. This paper aims to comprehensively analyze the functionality of an integrated technology comprising pretreatment techniques applied to bran substrate followed by fermentation bioprocesses to improve the bioaccessibility and bioavailability of the functional components. The integrated technology of specific physical, chemical, and biological pretreatments coupled with fermentation strategies applied to cereal bran previously-pretreated substrate provide a theoretical basis for the high-value utilization of cereal bran and the development of related functional foods and drugs.

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Scoma, Alberto, Lorenzo Bertin, Giulio Zanaroli, Serena Fraraccio und Fabio Fava. „A physicochemical–biotechnological approach for an integrated valorization of olive mill wastewater“. Bioresource Technology 102, Nr. 22 (November 2011): 10273–79. http://dx.doi.org/10.1016/j.biortech.2011.08.080.

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Gueccia, Rosa, David Bogle, Serena Randazzo, Alessandro Tamburini, Andrea Cipollina, Daniel Winter, Joachim Koschikowski und Giorgio Micale. „Economic Benefits of Waste Pickling Solution Valorization“. Membranes 12, Nr. 2 (19.01.2022): 114. http://dx.doi.org/10.3390/membranes12020114.

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An integrated hybrid membrane process, composed of a diffusion dialysis (DD), a membrane distillation (MD) and a reactive precipitation unit (CSTR), is proposed as a promising solution for the valorization and onsite recycling of pickling waste streams. An economic analysis was performed aiming to demonstrate the feasibility of the developed process with a NPV of about EUR 40,000 and a DPBP of 4 years. The investment and operating costs, as well as the avoided costs and the benefits for the company operating the plant, were analyzed with an extensive cost tracking exercise and through face-to-face contact with manufacturers and sector leaders. A mathematical model was implemented using the gPROMS modelling platform. It is able to simulate steady state operations and run optimization analysis of the process performance. The impact of key operating and design parameters, such as the set-point bath concentration and the DD and MD membrane areas, respectively, was investigated and the optimal arrangement was identified. Finally, operating variables and design parameters were optimized simultaneously in a nonlinear framework as a tradeoff between profitability and environmental impact. We show how the integration of new technologies into the traditional pickling industry could provide a significant benefit for the issues of process sustainability, which are currently pressing.

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Yuan, Lan, Ming‐Yu Qi, Zi‐Rong Tang und Yi‐Jun Xu. „Coupling Strategy for CO 2 Valorization Integrated with Organic Synthesis by Heterogeneous Photocatalysis“. Angewandte Chemie International Edition 60, Nr. 39 (14.05.2021): 21150–72. http://dx.doi.org/10.1002/anie.202101667.

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Yuan, Lan, Ming‐Yu Qi, Zi‐Rong Tang und Yi‐Jun Xu. „Coupling Strategy for CO 2 Valorization Integrated with Organic Synthesis by Heterogeneous Photocatalysis“. Angewandte Chemie 133, Nr. 39 (14.05.2021): 21320–42. http://dx.doi.org/10.1002/ange.202101667.

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Drif, Boujemaa, Yassine Taha, Rachid Hakkou und Mostafa Benzaazoua. „Integrated valorization of silver mine tailings through silver recovery and ceramic materials production“. Minerals Engineering 170 (August 2021): 107060. http://dx.doi.org/10.1016/j.mineng.2021.107060.

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Macedo, Antónia, David Azedo, Elizabeth Duarte und Carlos Pereira. „Valorization of Goat Cheese Whey through an Integrated Process of Ultrafiltration and Nanofiltration“. Membranes 11, Nr. 7 (28.06.2021): 477. http://dx.doi.org/10.3390/membranes11070477.

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Goat cheese whey is a co-product that comes from goat cheese manufacture. Due to its high organic load, adequate treatment is necessary before its disposal. Additionally, the recent growing interest in caprine products, attributed to their specific nutritional and nutraceutical characteristics, such as the lower allergenicity of their proteins and higher content of oligosaccharides, compared with bovine products, made the recovery of goat cheese whey a challenge. In this study, an integrated process for the recovery of sweet goat whey components was carried out. It includes filtration, centrifugation and pasteurization, followed by sequential membrane processes, ultrafiltration/dilution, nanofiltration of ultrafiltration permeates in dilution mode and the concentration/dilution of nanofiltration retentates. Ultrafiltration was performed with membranes of 10 and 1 kDa. Membranes of 10 kDa have higher permeate fluxes and, in a single stage of dilution, allowed for better protein retention and higher lactose purity, with a separation factor of 14. The concentration of lactose by nanofiltration/dilution led to the retention of almost all the lactose in retentates and to a final permeate, whose application in cheese dairy plants will allow for the total recovery of whey. The application of this integrated process in small- or medium-sized goat cheese dairies can represent an important contribution to their sustainability.

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Ayachi, Ahmed, Sara Belkhadem und Semir Bechir Suheil Gaouar. „PRESERVATION AND VALORIZATION OF THE HAMRA SHEEP BREED“. GABJ 1, Nr. 1 (24.01.2017): 19–25. http://dx.doi.org/10.46325/gabj.v1i1.78.

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The sheep breed Hamra is in a very detrimental situation, the numbers are lacking, it is almost in danger of extinction in our country. There is still a very small herd in the racial cradle. This sheep breed must be saved, because it has potentialities in measures to provide solutions in the national economy. During the colonial period the port of Marseilles received annually more than a million heads of Algerian sheep, , To answer a specific demand (of Hamra meat) from the French consumer . This rescue falls within the framework of a national biodiversity conservation policy, which will enable the sheep breed Hamra to berestored and integrated into the national economy by the conservation and multiplication of the largest number of. A response from the public authorities is desired to provide solutions to this genetic leaching not only for the Hamra breed but also for other sheep breeds such as: D'men, Rembi, Barbarine, Berber, Tadmit and some genetic populations such as Tazegzawt and Srendia. "Rustic" biodiversity is nevertheless valuable, however, especially in the face of adaptation to climate change and the scarcity of forage resources.

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Herrmann, Christiane, Raj Shekhar Bose, Anna-Katrin Neu, Roland Schneider und Maria Alexandri. „Cascading valorization of defatted rice bran for lactic acid fermentation and biogas production“. Biofuel Research Journal 11, Nr. 03 (01.09.2024): 2146–67. http://dx.doi.org/10.18331/brj2024.11.3.2.

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This study investigated the integrated valorization of defatted rice bran (DRB) by converting it into lactic acid (LA) and subsequently utilizing the residues from LA production for biomethane generation through anaerobic digestion (AD). Processing 480 kg of DRB resulted in the production of 70 L of pure LA and generated significant waste streams, primarily consisting of 572 kg of decanted hydrolysate pellet (Pellet DEC) and 220 kg of microfiltration retentate (Retentate MF). Exceptionally high methane yields of 374‒434 LN kgVS-1 were observed for residues from LA fermentation in biochemical methane potential tests, indicating their high potential for biogas production. During long-term semi-continuous AD, varying organic loading rates (OLRs) from 0.5‒2.5 kgVS m-3 d⁻¹ demonstrated feedstock- and OLR-dependent methane production. Reactor failure at higher OLRs was attributed to the accumulation of total ammoniacal nitrogen (TAN). The co-digestion of Pellet DEC and Retentate MF proved to be more resilient, with OLRs up to 2 kgVS m-3 d-1, mitigating TAN inhibition. Methane yields, ranging from 265‒334 LN kgVS-1 before reaching inhibitory OLR levels, were higher than those found in the literature. Process integration has emerged as a promising approach because the biogas generated from residues could effectively offset the energy demands of LA production. Supported by life cycle assessment, the integrated processes showed a 67% lower environmental impact at the midpoint and a 71% lower environmental impact at the endpoint, along with an 80% reduction in energy costs compared to the standalone LA production. Results proved a significant enhancement of the sustainability and economic viability of this integrated biorefinery approach.

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Vasiliță-Crăciun, Ileana-Cristina. „Analysis of the Cultural Landscape Elements in the Municipality of Bistrița and Their Potential for Tourism Valorization“. Studia Universitatis Babeș-Bolyai Geographia 68, Nr. 2 (30.12.2023): 139–47. http://dx.doi.org/10.24193/subbgeogr.2023.2.07.

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Analysis of the Cultural Landscape Elements in the Municipality of Bistrița and Their Potential for Tourism Valorization. The study of the cultural landscape elements in the urban area of Bistrița determines clear tourist values that refer to the attractiveness of both natural elements and that of cultural ones. This study highlights the specific natural environment, the churches and other buildings that have a characteristic function, belonging to different historical periods, starting from the Middle Ages. All of these benefit from an appropriate infrastructure that favors tourist access and capitalization, currently to a modest extent, but which as a whole can constitute the basis of a new integrated development strategy of the city. Thus, the study reveals both the analysis of the elements with real tourist values, as well as the main objectives to be achieved for the subsequent development of the area. Keywords: Bistrița Municipality, cultural landscape elements, tourism potential, tourism valorization

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Błaszczyk, Alfred, Sylwia Sady, Bogdan Pachołek, Dominika Jakubowska, Mariola Grzybowska-Brzezińska, Małgorzata Krzywonos und Stanisław Popek. „Sustainable Management Strategies for Fruit Processing Byproducts for Biorefineries: A Review“. Sustainability 16, Nr. 5 (20.02.2024): 1717. http://dx.doi.org/10.3390/su16051717.

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The fruit processing industry generates enormous amounts of byproducts, which are primarily removed through landfill or incineration. However, these processes cause carbon dioxide and methane emissions and release dioxin into the environment. The management of fruit processing byproducts is important for reducing the amount of food waste that is sent to landfills and for developing strategies through the reuse of these products for valorization and economic added value. Fruit processing byproducts are rich sources of bioactive compounds and fermentable and nonfermentable sugars. Therefore, these materials are very attractive feedstocks for developing integrated multifeed biorefineries that coproduce a wide range of natural products and bioenergy. The studies presented here have shown sustainable strategies for managing fruit processing byproducts via a biorefinery approach to achieve full valorization via a circular economy. The full valorization project proposed five main phases, namely, pretreatment, extraction, dark or aerobic fermentation, anaerobic digestion, and post-treatment, as well as two additional pathways to generate additional bioelectricity. When choosing the appropriate directions for the presented concept, a technoeconomic analysis should be carried out, considering the type of biomass and its availability at the site of the biorefinery and throughout the year of production. Applying the proposed concept of biorefineries in closed-loop technology is a promising way to enhance economic efficiency and decrease environmental influence in accordance with sustainable development.

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Ghosh, Debjani, Joanne Tanner, Jean-Michel Lavoie, Gil Garnier und Antonio F. Patti. „An integrated approach for hemicellulose extraction from forest residue“. BioResources 16, Nr. 2 (17.02.2021): 2524–47. http://dx.doi.org/10.15376/biores.16.2.2524-2547.

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An alkali-mediated hydrothermal approach was optimized for partial extraction of high-purity hemicellulose (xylan) from a timber waste product (unbleached eucalyptus sawdust). The extraction process was: a) extractives removal using sequential solvent extraction; b) alkali-mediated hydrothermal extraction of hemicellulose; and c) purification of the isolated hemicellulose fraction. Biomass was extracted in an autoclave at a fixed temperature of 121 °C while varying the extraction time (1 h to 2.5 h) and alkali concentration (10%, 15%, and 20% w/v). Using this simple approach, high purity polymeric hemicellulose with molecular mass (21 to 30 kDa) was recovered in yields of 35 to 37%. The isolated hemicellulose can be chemically transformed into high-value commercial products such as prebiotics (xylooligosaccharides), surfactants, hydrogels, and food packaging materials. The purified residue can be utilized in existing kraft pulping processes. The integration of hemicellulose extraction into existing pulping process represents additional valorization of timber resources.

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Savignac, Laurence, Andrew S. Danis, Mathieu Charbonneau und Steen B. Schougaard. „Valorization of carbon fiber waste from the aeronautics sector: an application in Li-ion batteries“. Green Chemistry 23, Nr. 6 (2021): 2464–70. http://dx.doi.org/10.1039/d0gc03954c.

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Cláudia da Costa Rocha, Ana, Cristiano José de Andrade und Débora de Oliveira. „Perspective on integrated biorefinery for valorization of biomass from the edible insect Tenebrio molitor“. Trends in Food Science & Technology 116 (Oktober 2021): 480–91. http://dx.doi.org/10.1016/j.tifs.2021.07.012.

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Ibrahimi, Izet, Nurten Deva und Skender Muqolli. „Integrated dry granulation – possibility of reducing environmental pollution and valorization of Fe-Ni slag“. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, Nr. 3 (2021): 25–30. http://dx.doi.org/10.33271/nvngu/2021-3/025.

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Purpose.The aim of our research consists in argumentation of the possibility of transformation of slag from potential pollutants into a new material used and its promotion as an alternative raw material for the production of consumable layers of asphalt concrete for highway. Methodology.The research on the possibility of using the slag of the electric furnace in Ferronickel Foundery is based on the practice of CISRO and Sumitomo Metals Industri in Japan, while the products of this process, in accordance with the standards EN12697-1:2006, EN12697-23, EN12697-12, EN 12697-27 dhe DD226-26/2004, have been used as aggregates for the production of asphalt concrete in the AHN Group-Kosovo. Findings.This paper presents the results from a study program related to minimizing the pollution impact of Fe-Ni slag landfill in Drenas, through valorization and improvement of physical-mechanical properties of slag according to the method of integrated dry granulation and using it afterwards as aggregate for the production of AC11 surf. Originality.Laboratory analyses were conducted in specialized laboratory and data presented are achieved through the use of devices and equipment that are necessary for experimental research, thus the obtained results are original data presented in this paper. Practical value.From the research data it has been proved that the conversion of Fe-Ni slag from wastes with high pollutant potentials into aggregates valuable for industry would express significant economic and environmental effects.

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Rajendran, Naveenkumar, und Jeehoon Han. „Techno-economic analysis of food waste valorization for integrated production of polyhydroxyalkanoates and biofuels“. Bioresource Technology 348 (März 2022): 126796. http://dx.doi.org/10.1016/j.biortech.2022.126796.

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Cebreiros, Florencia, Leonardo Clavijo, Elzeario Boix, Mario Daniel Ferrari und Claudia Lareo. „Integrated valorization of eucalyptus sawdust within a biorefinery approach by autohydrolysis and organosolv pretreatments“. Renewable Energy 149 (April 2020): 115–27. http://dx.doi.org/10.1016/j.renene.2019.12.024.

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Carucci, Alessandra, Augusto Bortolussi, Giovanna Cappai, Giovannimatteo Erby, Giaime Tocco und Stefano Milia. „Application of anammox within an integrated approach to sustainable food waste management and valorization“. New Biotechnology 58 (September 2020): 1–9. http://dx.doi.org/10.1016/j.nbt.2020.03.002.

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Karmee, Sanjib Kumar. „Moving towards the Application of Biocatalysis in Food Waste Biorefinery“. Fermentation 9, Nr. 1 (16.01.2023): 73. http://dx.doi.org/10.3390/fermentation9010073.

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Waste valorization is an important strategy to reduce environmental pollution and dependency on petroleum-based fuels. In this regard, utilization of food waste as a versatile and low-cost resource is important. Several advanced catalytic methods for the valorization of food waste have been widely investigated for the production of liquid biofuels. Along this line, chemical catalysts have been explored for the synthesis of liquid biofuels. Chemo-catalysis is mainly metal based, which requires harsh process conditions. Alternatively, biocatalysts are currently being investigated as a result of several advantages such as mild reaction conditions, recyclability, selectivity and biodegradability. In this work, recent biocatalytic technologies for the preparation of liquid biofuels through food waste valorization are discussed thoroughly. Lipases are employed for the synthesis of biodiesel and the upgradation of bio-oil, whereas methane mono-oxygenases could be explored for the production of methanol via the oxidation of methane generated from food wastes. Industrial production of ethanol from food waste using bioconversion technologies is a success story. To date, there has been no specific report on the use of food waste for propanol preparation using enzymes. The ABE process (Acetone–Butanol–Ethanol) (using suitable microorganisms) is used for butanol preparation, where the vacuum stripping system is integrated to remove butanol from the broth and circumvent inhibition. The synthesis of hydrocarbon fuels from fatty acids and triglycerides can be carried out using enzymes, such as carboxylic acid reductase and fatty acid photodecarboxylase (an algal photoenzyme). Both carboxylic acid reductase and fatty acid photodecarboxylase have not yet been applied in the direct valorization of food wastes. Furthermore, limitations of the reported methods, societal and economic aspects and a fresh perspective on the subject, along with important examples, are described.

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