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Journal articles on the topic 'Fructose Separation'

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Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

Rizki, Zulhaj, Anja E. M. Janssen, Albert van der Padt, and Remko M. Boom. "Separation of Fructose and Glucose via Nanofiltration in Presence of Fructooligosaccharides." Membranes 10, no. 10 (October 21, 2020): 298. http://dx.doi.org/10.3390/membranes10100298.

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Fructose and glucose are commonly present together in mixtures and may need to be separated. Current separation methods for these isomers are complex and costly. Nanofiltration is a cost-effective method that has been widely used for separating carbohydrates of different sizes; however, it is not commonly used for such similar molecules. Here, we report the separation of fructose and glucose in a nanofiltration system in the presence of fructooligosaccharides (FOS). Experiments were performed using a pilot-scale filtration setup using a spiral wound nanofiltration membrane with molecular weight cutoff of 1 kDa. We observed three important factors that affected the separation: (1) separation of monosaccharides only occurred in the presence of FOS and became more effective when FOS dominated the solution; (2) better separation was achieved when the monosaccharides were mainly fructose; and (3) the presence of salt improved the separation only moderately. The rejection ratio (Rf/Rg) in a fructose/glucose mixture is 0.92. We reported a rejection ratio of 0.69, which was observed in a mixture of 50 g/L FOS with a fructose to glucose ratio of 4.43. The separation is hypothesized to occur due to selective transport in the FOS layer, resulting in a preferential binding towards fructose.

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2

Sato, Kanta, Tetsushi Yamamoto, Kuniko Mitamura, and Atsushi Taga. "Separation of Fructosyl Oligosaccharides in Maple Syrup by Using Charged Aerosol Detection." Foods 10, no. 12 (December 20, 2021): 3160. http://dx.doi.org/10.3390/foods10123160.

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Fructosyl oligosaccharides, including fructo-oligosaccharide (FOS), are gaining popularity as functional oligosaccharides and have been found in various natural products. Our previous study suggested that maple syrup contains an unidentified fructosyl oligosaccharide. Because these saccharides cannot be detected with high sensitivity using derivatization methods, they must be detected directly. As a result, an analytical method based on charged aerosol detection (CAD) that can detect saccharides directly was optimized in order to avoid relying on these structures and physical properties to clarify the profile of fructosyl oligosaccharides in maple syrup. This analytical method is simple and can analyze up to hepta-saccharides in 30 min. This analytical method was also reliable and reproducible with high validation values. It was used to determine the content of saccharides in maple syrup, which revealed that it contained not only fructose, glucose, and sucrose but also FOS such as 1-kestose and nystose. Furthermore, we discovered a fructosyl oligosaccharide called neokestose in maple syrup, which has only been found in a few natural foods. These findings help to shed light on the saccharides profile of maple syrup.

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3

Istianah, Nur, N. A. Kartina, and Dego Yusa Ali. "Fructose separation from sorghum syrup by using HPLC approach: a review." International Journal of Advance Tropical Food 2, no. 2 (April 20, 2021): 69–79. http://dx.doi.org/10.26877/ijatf.v2i2.7121.

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Liquid sugar available today is usually the result of dissolving granulated sugar using hot water. Sorghum syrup can be obtained from the concentrate without involving crystallization, centrifugation, sieving and drying and dissolving processes. However, the sorghum syrup produced from the concentrate still containing complex sugar components such as sucrose, sugar, fructose and others. This review was examined the separation of fructose from sorghum syrup using the HPLC approach. Compared with artificial sweeteners or sugar derivative products such as dextrose, maltodextrin, sorbitol, saccharin, sucralose, and xylitol, sorghum syrup still has lower economic value. The manufacture of these sugar derivatives generally uses chemical processes such as chlorination of sucralose, hydrogenation of xylitol or enzymatic processes and fermentation of fructose. Chemical processes in general can pose a danger to consumer health, while enzymatic and biological processes require high operational costs and complex processes of enzyme and cell separation such corn fructose production. Chromatography is a technology for separating complex mixtures such as sorghum concentrates to obtain separate components, such as fructose syrup and byproducts. On a laboratory scale, sugar fractionation or fructose purification is generally carried out using High Performance Liquid Chromatography (HPLC) with the Carbopac ion exchange column as the stationary phase and ultrapure water as the mobile phase. The industrial scale fractionation in the food sector is still applied to palm oil processing. This is a great opportunity to conduct research related to the components of sorghum concentrates using chromatography column fractionation technology to obtain pure fructose with greater process efficiency and economics.

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4

Rühm, Rainer, Elvira Dietsche, Hans-Joachim Harloff, Manuela Lieb, Stephan Franke, and Jens Aumann. "Characterisation and partial purification of a white mustard kairomone that attracts the beet cyst nematode, Heterodera schachtii." Nematology 5, no. 1 (2003): 17–22. http://dx.doi.org/10.1163/156854102765216641.

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AbstractA kairomone from white mustard, Sinapis alba , that attracts infective juveniles (J2) of the beet cyst nematode, Heterodera schachtii, was extracted from root exudates and enriched by rotary evaporation. The kairomone-containing root exudate fractions were then repeatedly enriched and separated on a combination of octyl and octadecyl columns, leaving a single UV-absorbing HPLC peak. Glucose and fructose were identified by a subsequent HPLC separation in the ion moderated partition chromatography mode. The kairomone appeared in the fructose-containing fraction. As fructose did not cause nematode attraction, the fructose fraction contained at least one further substance. HPLC separations showed that the kairomone shares several properties with fructose and that it is relatively more polar than those compounds giving an UV signal. The repeated reversed-phase and ion moderated partition chromatography separations of single kairomone-containing fractions indicate that the kairomone is composed of one single substance which could not be identified with the methods applied. Gas chromatographic and mass spectrometric analyses revealed the presence of glucose, fructose, myo-inositol, sucrose and xylofuranose/ribofuranose in S. alba root exudates.

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5

Kuptsevich, Yu E., Oleg G. Larionov, I. D. Stal'naya, L. A. Nakhapetyan, and A. Ya Pronin. "Chromatographic Separation of Glucose and Fructose." Russian Chemical Reviews 56, no. 3 (March 31, 1987): 299–306. http://dx.doi.org/10.1070/rc1987v056n03abeh003272.

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6

Chang, C. H. "Separation of fructose and psicose from glucose and/or mannose and separation of psicose from fructose." Zeolites 11, no. 3 (March 1991): 299. http://dx.doi.org/10.1016/s0144-2449(05)80259-3.

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7

Al Eid, S. M. "CHROMATOGRAPHIC SEPARATION OF FRUCTOSE FROM DATE SYRUP." Acta Horticulturae, no. 736 (March 2007): 511–22. http://dx.doi.org/10.17660/actahortic.2007.736.50.

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8

Al Eid, Salah M. "Chromatographic separation of fructose from date syrup." International Journal of Food Sciences and Nutrition 57, no. 1-2 (January 2006): 83–96. http://dx.doi.org/10.1080/09637480600658286.

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9

Schroer, Guido, Jeff Deischter, Tobias Zensen, Jan Kraus, Ann-Christin Pöppler, Long Qi, Susannah Scott, and Irina Delidovich. "Structure-performance correlations of cross-linked boronic acid polymers as adsorbents for recovery of fructose from glucose–fructose mixtures." Green Chemistry 22, no. 2 (2020): 550–62. http://dx.doi.org/10.1039/c9gc03151k.

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10

Bart, H. J., R. C. Messenböck, C. H. Byers, A. Prior, and J. Wolfgang. "Continuous chromatographic separation of fructose, mannitol and sorbitol." Chemical Engineering and Processing: Process Intensification 35, no. 6 (December 1996): 459–71. http://dx.doi.org/10.1016/s0255-2701(96)04159-1.

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11

Kim, Sung Soo, Ho Nam Chang, and Young Sung Ghim. "Separation of fructose and glucose by reverse osmosis." Industrial & Engineering Chemistry Fundamentals 24, no. 4 (November 1985): 409–12. http://dx.doi.org/10.1021/i100020a002.

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12

Silva, A. T. C. R., K. C. L. Martinez, A. B. N. Brito, and M. Giulietti. "Separation of glucose and fructose by freezing crystallization." Crystal Research and Technology 45, no. 10 (August 30, 2010): 1032–34. http://dx.doi.org/10.1002/crat.200900566.

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13

Baikenov, Alibek O., Nurzhan Zh. Muslimov, Kadyrbek A. Baigenzhinov, Zhazira A. Yessimova, and Yuliya V. Kim. "Mathematical model of dependence of factors for chromatographic separation of fructose from glucose-fructose syrup." IOP Conference Series: Materials Science and Engineering 994 (December 11, 2020): 012023. http://dx.doi.org/10.1088/1757-899x/994/1/012023.

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14

Mancini, Francesca, Jessica Fiori, Vanni Cavrini, and Vincenza Andrisano. "Separation and quantitation of fructose-6-phosphate and fructose-1,6-diphosphate by LC-ESI-MS for the evaluation of fructose-1,6-biphosphatase activity." Journal of Separation Science 29, no. 15 (October 2006): 2395–400. http://dx.doi.org/10.1002/jssc.200600077.

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15

Matijašević, Lj, and Đ. Vasić-Rački. "Separation of glucose/fructose mixtures: counter-current adsorption system." Biochemical Engineering Journal 4, no. 2 (January 2000): 101–6. http://dx.doi.org/10.1016/s1369-703x(99)00040-6.

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16

Cheng, Y. L., and T. Y. Lee. "Separation of fructose and glucose mixture by zeolite Y." Biotechnology and Bioengineering 40, no. 4 (August 5, 1992): 498–504. http://dx.doi.org/10.1002/bit.260400408.

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17

Liu, Xuan, Daniel Chee Yin Leong, and Yujie Sun. "The production of valuable biopolymer precursors from fructose." Green Chemistry 22, no. 19 (2020): 6531–39. http://dx.doi.org/10.1039/d0gc02315a.

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18

Kruschitz, Andreas, and Bernd Nidetzky. "Reactive extraction of fructose for efficient separation of sucrose-derived glucosides produced by enzymatic glycosylation." Green Chemistry 22, no. 15 (2020): 4985–94. http://dx.doi.org/10.1039/d0gc01408g.

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19

Sun, Kai, Yuewen Shao, Qingyin Li, Lijun Zhang, Zhengmao Ye, Dehua Dong, Shu Zhang, Yi Wang, Xueli Li, and Xun Hu. "Importance of the synergistic effects between cobalt sulfate and tetrahydrofuran for selective production of 5-hydroxymethylfurfural from carbohydrates." Catalysis Science & Technology 10, no. 7 (2020): 2293–302. http://dx.doi.org/10.1039/d0cy00225a.

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20

Gonzalez-Granda, Anita, Antje Damms-Machado, Maryam Basrai, and Stephan Bischoff. "Changes in Plasma Acylcarnitine and Lysophosphatidylcholine Levels Following a High-Fructose Diet: A Targeted Metabolomics Study in Healthy Women." Nutrients 10, no. 9 (September 6, 2018): 1254. http://dx.doi.org/10.3390/nu10091254.

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Background: The consumption of high amounts of fructose is associated with metabolic diseases. However, the underlying mechanisms are largely unknown. Objective: To determine the effects of high fructose intake on plasma metabolomics. Study design: We enrolled 12 healthy volunteers (six lean and six obese women, age 24–35 years) in a crossover intervention study. All participants carried out three diets: (1) low fructose (<10 g/day); (2) high fructose (100 g/day) from natural food sources (fruit); and (3) high fructose (100 g/day) from high fructose syrup (HFS). Outcome measures: The primary outcome was changes in plasma metabolites measured by targeted metabolomics. Results: High compared to low fructose diets caused a marked metabolite class separation, especially because of changes in acylcarnitine and lysophosphatidylcholine levels. Both high fructose diets resulted in a decrease in mean acylcarnitine levels in all subjects, and an increase in mean lysophosphatidylcholine and diacyl-phosphatidylcholine levels in obese individuals. Medium chain acylcarnitines were negatively correlated with serum levels of liver enzymes and with the fatty liver index. Discussion: The metabolic shifts induced by high fructose consumption suggest an inhibition of mitochondrial β-oxidation and an increase in lipid peroxidation. The effects tended to be more pronounced following the HFS than the fruit diet.

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21

Coelho, Mariana S., Diana C. S. Azevedo, José A. Teixeira, and Alı́rio Rodrigues. "Dextran and fructose separation on an SMB continuous chromatographic unit." Biochemical Engineering Journal 12, no. 3 (December 2002): 215–21. http://dx.doi.org/10.1016/s1369-703x(02)00071-2.

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22

Matijašević, Lj, D. Vasić-Rački, and N. Pavlović. "Separation of glucose/fructose mixtures. Analysis of elution of profiles." Chemical Engineering Journal 65, no. 3 (August 1997): 209–12. http://dx.doi.org/10.1016/s1385-8947(97)00039-9.

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23

Hatt, H. H., and A. C. K. Triffett. "The separation of glucose and fructose by liquid-liquid extraction." Journal of Applied Chemistry 15, no. 12 (May 4, 2007): 556–69. http://dx.doi.org/10.1002/jctb.5010151203.

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24

Gu, Lei, Yun Wang, Juan Han, Lei Wang, Xu Tang, Cheng Li, and Liang Ni. "Phenylboronic acid-functionalized core–shell magnetic composite nanoparticles as a novel protocol for selective enrichment of fructose from a fructose–glucose aqueous solution." New Journal of Chemistry 41, no. 22 (2017): 13399–407. http://dx.doi.org/10.1039/c7nj02106b.

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We developed an efficient and mild method for the preparation of boronic acid-functionalized magnetic nanoparticles (MNPs), and the selective separation of fructose from a sample solution was demonstrated for the first time.

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25

Gao, Da-Ming, Bohan Zhao, Haichao Liu, Kei Morisato, Kazuyoshi Kanamori, Zhiyong He, Maomao Zeng, Huaping Wu, Jie Chen, and Kazuki Nakanishi. "Synthesis of a hierarchically porous niobium phosphate monolith by a sol–gel method for fructose dehydration to 5-hydroxymethylfurfural." Catalysis Science & Technology 8, no. 14 (2018): 3675–85. http://dx.doi.org/10.1039/c8cy00803e.

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A new type of niobium phosphate (NbP) with a hierarchically porous structure was synthesised via a sol–gel method accompanied by phase separation and effectively acted as a solid acid for fructose dehydration to HMF.

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26

Zhu, Suiyi, Ting Su, Yu Chen, Zhan Qu, Xue Lin, Ying Lu, and Mingxin Huo. "Resource Recovery of Waste Nd–Fe–B Scrap: Effective Separation of Fe as High-Purity Hematite Nanoparticles." Sustainability 12, no. 7 (March 26, 2020): 2624. http://dx.doi.org/10.3390/su12072624.

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Recycling rare-earth elements from Nd magnet scrap (Nd–Fe–B scrap) is a highly economical process; however, its efficiency is low due to large portions of Fe impurity. In this study, the effective separation of Fe impurity from scrap was performed through an integrated nitric acid dissolution and hydrothermal route with the addition of fructose. Results showed that more than 99% of the scrap was dissolved in nitric acid, and after three dilutions that the Nd, Pr, Dy and Fe concentrations in the diluted acid were 9.01, 2.11, 0.37 and 10.53 g/L, respectively. After the acid was hydrothermally treated in the absence of fructose, only 81.8% Fe was removed as irregular hematite aggregates, whilst more than 98% rare-earth elements were retained. By adding fructose at an Mfructose/Mnitrate ratio of 0.2, 99.94% Fe was precipitated as hematite nanoparticles, and the loss of rare-earth elements was <2%. In the treated acid, the residual Fe was 6.3 mg/L, whilst Nd, Pr and Dy were 8.84, 2.07 and 0.36 g/L, respectively. Such composition was conducive for further recycling of high-purity rare-earth products with low Fe impurity. The generated hematite nanoparticles contained 67.92% Fe with a rare-earth element content of <1%. This value meets the general standard for commercial hematite active pharmaceutical ingredients. In this manner, a green process was developed for separating Fe from Nd–Fe–B scrap without producing secondary waste.

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27

Ruan, Mengcheng, Tingting Wu, Mengjun Cheng, Jiale Yu, Hualin Wang, and Zhiguo Liu. "Separation and Probiotic Effect of Fructose with Different Polymerization Degrees in Inulin." E3S Web of Conferences 131 (2019): 01016. http://dx.doi.org/10.1051/e3sconf/201913101016.

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Inulin is a natural fructose polymer that can be used as a fat substitute in foods such as dairy products and bakery products and is often added to food products due to its effect on the regulation of intestinal flora (also known as the prebiotic effect). However, there are few studies exploring whether there are functional differences between fructose species with different degrees of polymerization (DP). Therefore, we focused on the separation of fructose species with different DP and their different effects on the balance of intestinal flora. First, the fractional precipitation method was used to separate short-chain inulin (DP:2-9), medium-chain inulin (DP:10-23), and long-chain inulin (DP:23 and above). Then, male C57BL/6 mice were randomly distributed into four groups and fed with a high-fat diet(HFD), a high-fat diet with added short-chain inulin(SCI), a high-fat diet with added medium-chain inulin(MCI), or a high-fat diet with added long-chain inulin(LCI) for two weeks. Finally, RT-PCR was used to detect the relative abundance of specific bacteria after this feeding course. The results showed that the abundance of common probiotics increased, and some harmful bacteria reduced after SCI, MCI, and HCI treatment. As the short-chain inulin has the strongest effect on improving the balance of intestinal flora, it may be a promising treatment option for patients with obesity, fatty liver, diabetes or other gastrointestinal issues.

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28

Miyamoto, K., S. Tatsumi, A. Morimoto, H. Minami, H. Yamamoto, K. Sone, Y. Taketani, Y. Nakabou, T. Oka, and E. Takeda. "Characterization of the rabbit intestinal fructose transporter (GLUT5)." Biochemical Journal 303, no. 3 (November 1, 1994): 877–83. http://dx.doi.org/10.1042/bj3030877.

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Recent studies suggest that the jejunal/kidney-type facilitative glucose transporter (GLUT5) functions as a high-affinity D-fructose transporter. However, its precise role in the small intestine is not clear. In an attempt to identify the fructose transporter in the small intestine, we measured fructose uptake in Xenopus oocytes expressing jejunal mRNA from five species (rat, mouse, rabbit, hamster and guinea-pig). Only jejunal mRNA from the rabbit significantly increased fructose uptake. We also cloned a rabbit GLUT5 cDNA from a jejunal library The predicted amino acid sequence of the 487-residue rabbit GLUT5 showed 72.3 and 67.1% identity with human and rat GLUT5 respectively. Northern-blot analysis revealed GLUT5 transcripts in rabbit duodenum, jejunum and, to a lesser extent, kidney. After separation of rabbit jejunal mRNA on a sucrose density gradient, the fractions that conferred D-fructose transport activity in oocytes also hybridized with rabbit GLUT5 cDNA. Hybrid depletion of jejunal mRNA with a GLUT5 antisense oligonucleotide markedly inhibited the mRNA-induced fructose uptake in oocytes. Immunoblot analysis indicated that GLUT5 (49 kDa) is located in the brush-border membrane of rabbit intestinal epithelial cells. Xenopus oocytes injected with rabbit GLUT5 cRNA exhibited fructose uptake activity with a Km of 11 mM for D-fructose. D-Fructose transport by GLUT5 was significantly inhibited by D-glucose and D-galactose. D-Fructose uptake in brush-border membrane vesicles shows a Km similar to that of GLUT5, but was not inhibited by D-glucose or D-galactose. Finally, cytochalasin B photolabelled a 49 kDa protein in rabbit brush-border-membrane preparations that was immunoprecipitated by antibodies to GLUT5. Our results suggest that GLUT5 functions as a fructose transporter in rabbit small intestine. However, biochemical properties of fructose transport in Xenopus oocytes injected with GLUT5 cRNA differed from those in rabbit jejunal vesicles.

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29

Henniger, Guenther, and Leonard Mascaro. "Enzymatic-Ultraviolet Determination of Glucose and Fructose in Wine: Collaborative Study." Journal of AOAC INTERNATIONAL 68, no. 5 (September 1, 1985): 1021–24. http://dx.doi.org/10.1093/jaoac/68.5.1021.

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Abstract This collaborative study on the determination of glucose and fructose in wine was performed by 18 laboratories on 4 matched pairs of commercial wine. The method uses the enzymes hexokinase, glucose-6- phosphate dehydrogenase, and phosphoglucose isomerase and the coenzyme nicotinamide-adenine dinucleotide phosphate. Both glucose and fructose can be determined in the same sample without separation. The method is simple but care is necessary to ensure precise transfer of small volumes. Repeatability and reproducibility standard deviations for glucose ranged from 2.6 to 14.6 mg/L and 4.7 to 16.5 mg/L, respectively. Repeatability and reproducibility values for fructose ranged from 2.4 to 16.1 mg/L and 6.0 to 21.3 mg/L, respectively. The method has been adopted official first action

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30

Viard, Virginie, and Marie-Laure Lameloise. "Modelling glucose-fructose separation by adsorption chromatography on ion exchange resins." Journal of Food Engineering 17, no. 1 (January 1992): 29–48. http://dx.doi.org/10.1016/0260-8774(92)90063-c.

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31

Lukáč, M., and Z. Peřina. "A dynamic model of physical processes in chromatographic glucose—fructose separation." Chemical Engineering Science 46, no. 4 (1991): 959–65. http://dx.doi.org/10.1016/0009-2509(91)85089-g.

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32

Gillarová, Simona, Svatopluk Henke, Tomáš Svoboda, Pavel Kadlec, Andrea Hinková, Zdeněk Bubník, Vladimír Pour, and Marcela Sluková. "Chromatographic separation of mannitol from mixtures of other carbohydrates in aqueous solutions." Czech Journal of Food Sciences 39, No. 4 (August 29, 2021): 281–88. http://dx.doi.org/10.17221/55/2021-cjfs.

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The isolation of mannitol from natural sources, e.g. from plant extracts or broths, requires considerable time and effort. The separation of mannitol from aqueous solutions containing also glucose, fructose, and sucrose was tested using discontinuous preparative anion- and cation-exchange chromatography. The suitability of the application in the separation of carbohydrates and especially mannitol was tested under various conditions and using three different types of ion-exchangers. The effect of sorbent regeneration and modification on the separation was also examined using different concentrations and volumes of chemical agents. The fractions collected after the discontinuous chromatography were analysed on the content of mannitol by the high-performance anion-exchange chromatography with pulsed amperometric detection (HPAEC-PAD) method. The successful isolation of pure mannitol fraction, using water as a mobile phase and a combination of sodium chloride and hydroxide for sorbent regeneration, was achieved only on anion-exchange chromatography.

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33

Gimbernat, Alexandra, Marie Guehl, Nicolas Lopes Ferreira, Egon Heuson, Pascal Dhulster, Mickael Capron, Franck Dumeignil, Damien Delcroix, Jean Girardon, and Rénato Froidevaux. "From a Sequential Chemo-Enzymatic Approach to a Continuous Process for HMF Production from Glucose." Catalysts 8, no. 8 (August 17, 2018): 335. http://dx.doi.org/10.3390/catal8080335.

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Notably available from the cellulose contained in lignocellulosic biomass, glucose is a highly attractive substrate for eco-efficient processes towards high-value chemicals. A recent strategy for biomass valorization consists on combining biocatalysis and chemocatalysis to realise the so-called chemo-enzymatic or hybrid catalysis. Optimisation of the glucose conversion to 5-hydroxymethylfurfural (HMF) is the object of many research efforts. HMF can be produced by chemo-catalyzed fructose dehydration, while fructose can be selectively obtained from enzymatic glucose isomerization. Despite recent advances in HMF production, a fully integrated efficient process remains to be demonstrated. Our innovative approach consists on a continuous process involving enzymatic glucose isomerization, selective arylboronic-acid mediated fructose complexation/transportation, and chemical fructose dehydration to HMF. We designed a novel reactor based on two aqueous phases dynamically connected via an organic liquid membrane, which enabled substantial enhancement of glucose conversion (70%) while avoiding intermediate separation steps. Furthermore, in the as-combined steps, the use of an immobilized glucose isomerase and an acidic resin facilitates catalyst recycling.

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34

Di Luccio, M. "Separation of fructose from a mixture of sugars using supported liquid membranes." Journal of Membrane Science 174, no. 2 (July 31, 2000): 217–24. http://dx.doi.org/10.1016/s0376-7388(00)00385-9.

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35

Subramani, H. J., K. Hidajat, and A. K. Ray. "Optimization of Simulated Moving Bed and Varicol Processes for Glucose–Fructose Separation." Chemical Engineering Research and Design 81, no. 5 (May 2003): 549–67. http://dx.doi.org/10.1205/026387603765444500.

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36

Azevedo, Diana C. S., and Alírio E. Rodrigues. "Separation of Fructose and Glucose from Cashew Apple Juice by SMB Chromatography." Separation Science and Technology 40, no. 9 (July 2005): 1761–80. http://dx.doi.org/10.1081/ss-200064559.

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37

Van Duc Long, Nguyen, Thai-Hoang Le, Jin-Il Kim, Ju Weon Lee, and Yoon-Mo Koo. "Separation of D-psicose and D-fructose using simulated moving bed chromatography." Journal of Separation Science 32, no. 11 (June 2009): 1987–95. http://dx.doi.org/10.1002/jssc.200800753.

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38

Danilchuk, Yulia V. "Thermal effect of carbohydrate dissolution in aqueous-organic media." Health, Food & Biotechnology 2, no. 4 (September 18, 2021): 49–59. http://dx.doi.org/10.36107/hfb.2020.i4.s77.

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This work is devoted to the theoretical substantiation of connection of temperature dependence of the solubility of carbohydrates with thermal effect of their dissolution in the water-containing organic solvents that is of great importance for optimization of the technology of their extraction from plant raw materials and further purification and separation by recrystallization. The dependence of the solubility of fructose, glucose, sucrose, and maltose in aqueous isopropanol and acetone at temperatures of 298 К (25 оС) and 275 К (2 оС) from water content in a solvent was studied. The constancy of the mechanism of solubility of carbohydrates in these environments in the given temperature interval is experimentally proved. For the first time based on the equation of Vant-Goff the logical connection of temperature dependence of solubility and thermal effect of solubility of carbohydrates is strictly grounded. The values of the thermal effect that are determined by the experimental data allow calculating the solubility of the studied carbohydrates in the aqueous–organic solvent of different concentration in the temperature range from 2оС to 25 оС. It has been established that the main contribution to the thermal effect of dissolving carbohydrates is the hydration process. Solvation by molecules of organic solvent practically does not change the value of the specified thermal effect. The significance of determined temperature dependences of the solubility of fructose, glucose and maltose is shown to optimize the technological conditions for the separation of glucose-fructose and glucose-maltose syrups by selective crystallization.

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39

Jiang, Yuxi, Xilei Lyu, Hao Chen, Xiwen Wei, Zihao Zhang, and Xiuyang Lu. "Catalytic Conversion of High Fructose Corn Syrup to Methyl Lactate with CoO@silicalite-1." Catalysts 12, no. 4 (April 14, 2022): 442. http://dx.doi.org/10.3390/catal12040442.

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Methyl lactate (MLA), a versatile biomass platform, was typically produced from the catalytic conversion of high-priced fructose. High fructose corn syrup (HFCS) is a mixture of glucose, fructose, water, etc., which is viewed as an economical substitute for fructose to produce MLA due to the much lower cost of separation and drying processes. However, the transformation of HFCS to MLA is still a challenge due to its complex components and the presence of water. In this work, the catalytic conversion of HFCS to MLA over CoO@silicalite-1 catalyst synthesized via a straightforward post citric acid treatment approach was reported. The maximum MLA yield reached 43.8% at 180 °C for 18 h after optimizing the reaction conditions and Co loading. Interestingly, adding extra 3% water could further increase the MLA yield, implying that our CoO@silicalite-1 catalyst is also capable for upgrading wet HFCS. As a result, the costly drying process of wet HFCS can be avoided. Moreover, the activity of CoO@silicalite-1 catalyst can be regenerated for at least four cycles via facile calcination in air. This study, therefore, will provide a new opportunity to not only solve the HFCS-overproduction issues but also produce value-added MLA.

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Azevedo, D. C. S., and A. Rodrigues. "SMB chromatography applied to the separation/purification of fructose from cashew apple juice." Brazilian Journal of Chemical Engineering 17, no. 4-7 (December 2000): 507–16. http://dx.doi.org/10.1590/s0104-66322000000400015.

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Luz, D. A., A. K. O. Rodrigues, F. R. C. Silva, A. E. B. Torres, C. L. Cavalcante, E. S. Brito, and D. C. S. Azevedo. "Adsorptive separation of fructose and glucose from an agroindustrial waste of cashew industry." Bioresource Technology 99, no. 7 (May 2008): 2455–65. http://dx.doi.org/10.1016/j.biortech.2007.04.063.

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Azevedo, Diana C. S., and Alírio E. Rodrigues. "Fructose–glucose separation in a SMB pilot unit: Modeling, simulation, design, and operation." AIChE Journal 47, no. 9 (September 2001): 2042–51. http://dx.doi.org/10.1002/aic.690470915.

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Sri Rama Krishna Surapureddi, Kunta Ravindhranath, and Saritha Anthireddy. "An HPLC tool for process monitoring: rare sugar D- psicose and D- fructose contents during the production through an enzymatic path." International Journal of Research in Pharmaceutical Sciences 11, no. 1 (January 25, 2020): 775–80. http://dx.doi.org/10.26452/ijrps.v11i1.1894.

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D-Psicose/allulose, a rare sugar, is an essential raw material in the pharmaceutical and food industries. It is scantly found in nature and to meet its demand in industries, D-Psicose is generated enzymatically using D-fructose as a substrate. In these conversations, it is important to monitor D-Psicose, in order to control the process, impurities, optimize the reaction time and reduce the process cost The available analytical methods have their limitations in quantifying D-psicose and D-fructose mixtures. Hence there is a need for the development of a routine, sensitive, quick and precise analytical method for D-psicose production on-line monitoring of reaction mixer. In the present work, a simplified reverse phase HPLC technique is developed and validated for the quick reaction monitoring of D-psicose from D-fructose, during enzymatic conversation procedures. The analysis is conducted at different concentrations ranging from 0.05 % to 0.5 % of the standard solutions of the D-psicose and D-fructose, by using water and Acetonitrile (at a ratio of 20:80) as eluent with a flow rate of 1.0 mL/min on isocratic HPLC-RID system with an aminopropyl silane stationary phase [ZORBAX SIL 4.6 x 150 mm, 5 µm particle size column (USP-L8)]. The applicability of this method is illustrated in reaction monitoring, where D-fructose (substrate) is converted to D-psicose (product) in the presence of the enzyme: D-Tagotose 3- epimerase. Separation of D-psicose and D-fructose is achieved within 8 minutes with a resolution ≥ 4 which is the key advantage for reaction monitoring and linearity is established with regression of ≥ 0.99. Additionally, the current method uses a simple mobile phase, without any buffers. It can be used routinely for reaction monitoring.

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Ukić, Šime, Marko Rogošić, Mirjana Novak, Ena Šimović, Vesna Tišler, and Tomislav Bolanča. "Optimization of IC Separation Based on Isocratic-to-Gradient Retention Modeling in Combination with Sequential Searching or Evolutionary Algorithm." Journal of Analytical Methods in Chemistry 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/549729.

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Gradient ion chromatography was used for the separation of eight sugars: arabitol, cellobiose, fructose, fucose, lactulose, melibiose, N-acetyl-D-glucosamine, and raffinose. The separation method was optimized using a combination of simplex or genetic algorithm with the isocratic-to-gradient retention modeling. Both the simplex and genetic algorithms provided well separated chromatograms in a similar analysis time. However, the simplex methodology showed severe drawbacks when dealing with local minima. Thus the genetic algorithm methodology proved as a method of choice for gradient optimization in this case. All the calculated/predicted chromatograms were compared with the real sample data, showing more than a satisfactory agreement.

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Heinonen, Jari, Quentin Sanlaville, Henna Niskakoski, and Tuomo Sainio. "Effect of separation material particle size on pressure drop and process efficiency in continuous chromatographic separation of glucose and fructose." Separation and Purification Technology 193 (March 2018): 317–26. http://dx.doi.org/10.1016/j.seppur.2017.10.049.

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Ratkevich, Ekaterina A., Oleg V. Manaenkov, Valentina G. Matveeva, Olga V. Kislitsa, and Esther M. Sulman. "HYDROLYTIC HYDROGENATION OF INULIN WITH USE MAGNETIC-SEPARATE Ru-CONTAINING CATALYST." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 61, no. 7 (June 18, 2018): 77. http://dx.doi.org/10.6060/ivkkt.20186107.5679.

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The combined hydrolysis and hydrogenation of inulin was studied on Ru-containing magnetically recoverable catalyst, using subcritical water as solvent. The Ru−Fe3O4−SiO2 catalysts are synthesized by incorporation of magnetite nanoparticles (NPs) in mesoporous silica pores followed by formation of 2 nm Ru NPs. The latter was obtained by thermal decomposition of ruthenium acetylacetonate in the pores. Magnetic properties of Fe3O4−SiO2 are typical for superparamagnetic iron oxide NPs of comparable size and allow to make a fast magnetic separation of the catalyst. The results of liquid nitrogen adsorption measurements are typical for mesoporous materials. The BET surface area of catalyst is 280 m2/g, what is allowed for mesoporous catalytic materials. The XPS spectra of Ru-Fe3O4-SiO2 demonstrate a good homogeneity of the sample. The catalyst was tested in hydrolytic hydrogenation of inulin. Inulin is hydrolyzed with formation of fructose and a small amount of glucose. There is a hydrogenation of fructose and glucose in hydrogen with receiving a mannitol and sorbitol, respectively. Mannitol is widely used in production of medicines and pharmaceutics, liquid fuel, the chemical and food industry, biotechnology and production of cosmetics. Mannitol presents in many plants and seaweeds. However, the extraction of mannitol from these raw materials is not a profitable process. Instead, fermentation and catalytic hydrogenation processes are used industrially. Nowadays, mannitol can be obtained by catalytic hydrogenation of monosaccharides like fructose or from glucose-fructose mixtures, using heterogeneous catalyst. During the researches key parameters of process, such as temperature and time of reaction, partial pressure of hydrogen are varied. At optimum reaction conditions: temperature of 150 °C, partial pressure of hydrogen of 60 bars in 45 min, – conversion of inulin was achieved of 100 %, a mannitol yield was 44.3 %. The used catalyst has shown high activity and stability in hydrothermal conditions. Stable magnetic properties of the catalyst cause his easy separation from reactionary mixture by means of external magnetic field.Forcitation:Ratkevich E.A., Manaenkov O.V., Matveeva V.G., Kislitza O.V., Sulman E.M. The hydrolytic hydrogenation of inulin catalyzed by Ru-containing magnetically recoverable catalyst. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2018. V. 61. N 4-5. P. 76-81

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Stikkelman, R. M., T. T. Tjiote, J. P. Van Der Wiel, and F. Van Rantwijk. "High-performance liquid chromatographic separation of glucose-1-phosphate, fructose, sucrose and inorganic orthophosphate." Journal of Chromatography A 322 (January 1985): 220–22. http://dx.doi.org/10.1016/s0021-9673(01)97675-7.

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Hidajat, K., C. B. Ching, and D. M. Ruthven. "Numerical simulation of a semi-continuous counter-current adsorption unit for fructose-glucose separation." Chemical Engineering Journal 33, no. 3 (December 1986): B55—B61. http://dx.doi.org/10.1016/0300-9467(86)80021-1.

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Koko, Marwa Y. F., Rokayya Sami, Bertrand Muhoza, Ebtihal Khojah, and Ahmed M. A. Mansour. "Promising Pathway of Thermostable Mannitol Dehydrogenase (MtDH) from Caldicellulosiruptor hydrothermalis 108 for D-Mannitol Synthesis." Separations 8, no. 6 (June 1, 2021): 76. http://dx.doi.org/10.3390/separations8060076.

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In this study, we conducted the characterization and purification of the thermostable mannitol dehydrogenase (MtDH) from Caldicellulosiruptor hydrothermalis 108. Furthermore, a coupling-enzyme system was designed using (MtDH) from Caldicellulosiruptor hydrothermalis 108 and formate dehydrogenase (FDH) from Ogataea parapolymorpha. The biotransformation system was constructed using Escherichia coli whole cells. The purified enzyme native and subunit molecular masses were 76.7 and 38 kDa, respectively, demonstrating that the enzyme was a dimer. The purified and couple enzyme system results were as follows; the optimum pH for the reduction and the oxidation was 7.0 and 8.0, the optimum temperature was 60 °C, the enzyme activity was inhibited by EDTA and restored by zinc. Additionally, no activity was detected with NADPH and NADP. The purified enzyme showed high catalytic efficiency Kcat 385 s−1, Km 31.8 mM, and kcat/Km 12.1 mM−1 s−1 for D-fructose reduction. Moreover, the purified enzyme retained 80%, 75%, 60%, and 10% of its initial activity after 4 h at 55, 60, 65, and 75 °C, respectively. D-mannitol yield was achieved via HPLC. Escherichia coli are the efficient biotransformation mediator to produce D-mannitol (byproducts free) at high temperature and staple pH, resulting in a significant D-mannitol conversation (41 mg/mL) from 5% D-fructose.

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Bu, Yifan, Tao Zhang, Bo Jiang, and Jingjing Chen. "Improved Performance of D-Psicose 3-Epimerase by Immobilisation on Amino-Epoxide Support with Intense Multipoint Attachment." Foods 10, no. 4 (April 11, 2021): 831. http://dx.doi.org/10.3390/foods10040831.

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D-allulose is an epimer of D-fructose at the C-3 position. With similar sweetness to sucrose and a low-calorie profile, D-allulose has been considered a promising functional sweetener. D-psicose 3-epimerase (DPEase; EC 5.1.3.30) catalyses the synthesis of D-allulose from D-fructose. Immobilised enzymes are becoming increasingly popular because of their better stability and reusability. However, immobilised DPEase generally exhibits less activity or poses difficulty in separation. This study aimed to obtain immobilised DPEase with high catalytic activity, stability, and ease of separation from the reaction solution. In this study, DPEase was immobilised on an amino-epoxide support, ReliZyme HFA403/M (HFA), in four steps (ion exchange, covalent binding, glutaraldehyde crosslinking, and blocking). Glycine-blocked (four-step immobilisation) and unblocked (three-step immobilisation) immobilised DPEase exhibited activities of 103.5 and 138.8 U/g support, respectively, but contained equal amounts of protein. After incubation at 60 °C for 2 h, the residual activity of free enzyme decreased to 12.5%, but the activities of unblocked and blocked DPEase remained at 40.9% and 52.3%, respectively. Immobilisation also altered the substrate specificity of the enzyme, catalysing L-sorbose to L-tagatose and D-tagatose to D-sorbose. Overall, the immobilised DPEase with intense multipoint attachment, especially glycine-blocked DPEase, showed better properties than the free form, providing a superior potential for D-allulose biosynthesis.

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