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Relevant bibliographies by topics / Polysaccaride

Academic literature on the topic 'Polysaccaride'

Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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Journal articles on the topic "Polysaccaride"

1

Tavares Costa-Carvalho, Beatriz. "Polysaccaride Pneumococcal Antibodies." Allergy & Clinical Immunology International - Journal of the World Allergy Organization 19, no. 5 (2007): 201–5. http://dx.doi.org/10.1027/0838-1925.19.5.201.

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Hariyanti, Herviyanti, and Asmar Asmar. "POTENSI SENYAWA ORGANIK TIDAK TER-ION DALAM MENGURANGI KELARUTAN BESI (FE) UNTUK MENINGKATKAN PRODUKTIFITAS TANAH SAWAH BUKAAN BARU." Jurnal Solum 2, no. 1 (January 2, 2007): 40. http://dx.doi.org/10.25077/js.2.1.40-49.2005.

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The research about potency of non-ionic organic compounds to decrease the dissolved iron (Fe) and to increase productivity of recently used ricefield had been conducted from August 2004 till January 2005. The objective was to study the effect of non-ionic organic compounds applied to control Fe and to increase rice production on recently used ricefield. The experiment used completely randomized design with four treatments and three replications. The treatments were consisted of four levels of non-ionic organic compounds (polysaccaride), those were 0, 75, 150, and 225 ppm. The result of this study showed that the effect of non ionic-organic compounds (polysacaride) at 225 ppm could reduce solubility of Fe2+ from 302,67 to 126,67 ppm for 30 days flooded. The yield of the rice (dry weight of grain and percentage filled out of grain) increased as much as 2,95 g dan 35 % with effect of polysaccaride at 225 ppm. Key words : non-ionic organic compounds, polysaccaride, recently used ricefield, flooded.

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3

Damaso, Paulinea, Jonasa Igbonekwu-udoji Reagan, Hiền Lê Thị Thu, Thủy Lê Thu, Lê Cao Hồng, Sơn Lưu Hồng, Lâm Vi Đại, Tình Nguyễn Thị, Lượng Tạ Thị, and Hoa Đinh Thị Kim. "NGHIÊN CỨU QUY TRÌNH TÁCH CHIẾT POLYSACCARIDE TỔNG TỪ THÂN CÂY SÂM XUYÊN ĐÁ (MYXOPYRUM SMILACIFOLIUM WALL. BLUME) VÀ ĐÁNH GIÁ HOẠT TÍNH CHỐNG OXY HÓA." SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY 6, no. 17 (January 10, 2021): 36–41. http://dx.doi.org/10.51453/2354-1431/2020/385.

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Sâm xuyên đá (Myxopyrum smilacifolium (Wall.) Blume) là một dược liệu quý. Tuy nhiên quy trình tách chiết chưa được tối ưu hóa. Trong nghiên cứu này sâm xuyên đá được thu mua tại xã La Hiên, huyện Võ Nhai, tỉnh Thái Nguyên. Kết quả nghiên cứu đã xác định được điều kiện tách chiết polysaccaride tổng từ thân cây sâm xuyên đá: dung môi ethanol 85%, tỉ lệ nguyên liệu/dung môi là 1/15 (w/v), thời gian tách chiết là 120 phút, nhiệt độ 90oC. Quy trình tách chiết cho hàm lượng polysaccaride tổng số đạt 93,4 (mg/g), dịch chiết cho khả năng chống oxy hóa 109,14 (µg/ml).

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4

Damaso, Paulinea, Jonasa Igbonekwu-udoji Reagan, Hiền Lê Thị Thu, Thủy Lê Thu, Lê Cao Hồng, Sơn Lưu Hồng, Lâm Vi Đại, Tình Nguyễn Thị, Lượng Tạ Thị, and Hoa Đinh Thị Kim. "NGHIÊN CỨU QUY TRÌNH TÁCH CHIẾT POLYSACCARIDE TỔNG TỪ THÂN CÂY SÂM XUYÊN ĐÁ (MYXOPYRUM SMILACIFOLIUM WALL. BLUME) VÀ ĐÁNH GIÁ HOẠT TÍNH CHỐNG OXY HÓA." SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY 6, no. 17 (January 10, 2021): 36–41. http://dx.doi.org/10.51453/2354-1431/2020/385.

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Sâm xuyên đá (Myxopyrum smilacifolium (Wall.) Blume) là một dược liệu quý. Tuy nhiên quy trình tách chiết chưa được tối ưu hóa. Trong nghiên cứu này sâm xuyên đá được thu mua tại xã La Hiên, huyện Võ Nhai, tỉnh Thái Nguyên. Kết quả nghiên cứu đã xác định được điều kiện tách chiết polysaccaride tổng từ thân cây sâm xuyên đá: dung môi ethanol 85%, tỉ lệ nguyên liệu/dung môi là 1/15 (w/v), thời gian tách chiết là 120 phút, nhiệt độ 90oC. Quy trình tách chiết cho hàm lượng polysaccaride tổng số đạt 93,4 (mg/g), dịch chiết cho khả năng chống oxy hóa 109,14 (µg/ml).

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5

dos Reis, Arlete Barbosa, Cristiana Maria Pedroso Yoshida, Vera Solange Oliveira Farias, and Wilton Pereira Silva. "Study of Diffusion and Water Vapor Permeability in Chitosan Films and Chitosan Emulsified Films." Defect and Diffusion Forum 326-328 (April 2012): 170–75. http://dx.doi.org/10.4028/www.scientific.net/ddf.326-328.170.

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Chitosan is an abundant, natural polysaccaride obtained from fishing industry waste and films of chitosan also provide an efficient oxygen barrier. However, they are a poor water vapor barrier, which can be improved by incorporation of a hydrophobic compound, forming a emulsified film. Chitosan films were produced with the addition of palmitic acid lipid analysis and then the process in parallel with the diffusive permeability to water vapor. The objective of this work was to characterize the diffusion and water vapor permeability behavior of chitosan films and chitosan emulsified films.

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6

Prasetyo, Himawan, Iriani Setyaningsih, and Dewi Ratih Agungpriyono. "Growth and Extracelluler Polysaccaride Production of Porphyridium cruentum In Various Photoperiod." Jurnal Pengolahan Hasil Perikanan Indonesia 18, no. 2 (August 25, 2015): 220–30. http://dx.doi.org/10.17844/jphpi.2015.18.2.220.

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Prasetyo, Himawan, Iriani Setyaningsih, and Dewi Ratih Agungpriyono. "Growth and Extracelluler Polysaccaride Production of Porphyridium cruentum In Various Photoperiod." Jurnal Pengolahan Hasil Perikanan Indonesia 18, no. 2 (December 19, 2015): 219. http://dx.doi.org/10.17844/jphpi.v18i2.12882.

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<p>Porphyridium cruentum is a kind of red microalgae (Rhodophyta) that can grow and produce<br />polysaccharides. Polysaccharides are produced on the cell, then released and accumulated by<br />extracellular into medias. This study aimed to determine the optimum growth and production<br />of extracellular polysaccharides (EPs) from P. cruentum in various photoperiods. The cultivation<br />was done with the photoperiods at 24:0, 18:6, 12:12 and 06:18 h (light:dark) during 40 days using<br />modified medium F/2. The growth is determined by measuring optical density (OD) and dried<br />biomasses, the productions of EPs are determined by dried weight polysaccharides as a result<br />of precipitation. The results showed that OD at photoperiod 24:0 has the highest value 0.876 ±<br />0.0645 unit of absorbance, biomass concentrations are highest in the photoperiod 24:0 and 12:12<br />respectively 716.12 ± 123 mg-l and 696.5 ± 74.5 mg-l, the highest production of EPs on the<br />photoperiod 12:12 is 1.310 ± 130.26 mg-l. 12:12 hours (light: dark) photoperiod is optimally used<br />in P. cruentum cultivations with high biomass and extracellular polysaccharide results.</p>

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8

Kantoğlu, Ömer, Tuncer Çaykara, and Olgun Güven. "Preparation and characterization of polysaccaride interpolymer complexes: I-PVA/ι-carrageenan." Journal of Applied Polymer Science 127, no. 1 (April 27, 2012): 500–507. http://dx.doi.org/10.1002/app.37817.

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9

Chang, Min-chao, Shun-hsing Chuang, and Hui-ling Lin. "Effects of calcium ion on sludge conditioning." Water Science and Technology 35, no. 8 (April 1, 1997): 217–22. http://dx.doi.org/10.2166/wst.1997.0316.

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Investigating the sludge conditioning behavior and improving sludge conditionability were the primary objectives of this study. The effects of calcium ion with and without polyelectrolyte conditioning behavior on two industrially activated sludge systems were studied via Capillary Suction Time (CST) tests. Experimental results indicated that the calcium ion can strongly enhance the conditionability of the industrial biological sludge system. The good conditionability of calcium ion added system could have possibly resulted from the interaction of polysaccaride from activated sludge with calcium ion. Additionally, adding polyelectrolyte solution first would produce more suitable conditioning in a situation in which calcium ion is involved with polyelectrolyte system.

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HÅKansson, STELLAN, and STIG Holm. "INFLUENCE OF POLYSACCARIDE CAPSULE AND IONIC STRENGTH ON BUOYANT DENSITY OF GROUP B STREPTOCOCCI." Acta Pathologica Microbiologica Scandinavica Series B: Microbiology 94B, no. 1-6 (August 15, 2009): 139–43. http://dx.doi.org/10.1111/j.1699-0463.1986.tb03033.x.

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Dissertations / Theses on the topic "Polysaccaride"

1

Evington, J. R. N. "Protein-polysaccaride interactions and the catalysis of the thrombin/antithrombin reaction." Thesis, University of Bristol, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370826.

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2

Khanna, Sheila. "The chemical, physical and nutritional properties of the plant polysaccaride konjac glucomannan." Thesis, Glasgow Caledonian University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.688245.

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3

Sukplang, Patamaporn. "Production and Characterization of a Novel Extracellular Polysaccharide Produced by Paenibacillus velaei, Sp. Nov." Thesis, University of North Texas, 2000. https://digital.library.unt.edu/ark:/67531/metadc2551/.

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Paenibacillus velaei, sp. nov. is a soil bacterium capable of producing an unusually large amount of exopolysaccharide (EPS). The EPS contains glucose, mannose, galactose and fucose in a molar ratio of 4:2:1:1. The molecular weight of the EPS is higher than 2x106. The viscosity of 1% EPS is 1300 cP when measured at a shear rate of 1 sec-1. Physiological parameters for optimal production of the EPS were studied and it was found that 1.4 g dry weight per 1 l of medium was produced when the bacteria were grown at 30EC and the pH adjusted at 7± 0.2 in a medium containing glucose as the carbon source. Growing the bacteria on different carbon sources did not alter the quantity or the composition of the EPS produced. No toxicity effects were observed in mice or rats when EPS was administered in amounts ranging from 20 to 200 mg per kg body weight. The data obtained from physical, chemical and biological properties suggest that the EPS may be employed in several industrial and environmental applications. It is an excellent emulsifier, it holds 100 times its own weight in water, it is not toxic, and it can be used to remove mercury, cadmium and lead from aqueous solutions.

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4

Boyer, Renee R. "Mechanisms Associated with Attachment of Escherichia coli O157:H7 to Lettuce Surfaces." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/27003.

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Fresh produce is increasingly associated with foodborne outbreaks. In order to develop effective intervention and measures to reduce microbial risks, it is essential to attain a better understand the mechanisms of attachment of foodborne pathogens to fruits and vegetables. Using lettuce as a model, the attachment of Escherichia coli O157:H7 to produce surfaces was studied. Strains expressing various extracellular proteins (curli, O157-antigen, and intimin) known to influence attachment of E. coli to intestinal cells were evaluated for their physicochemical properties and ability to adhere to cut edge and whole leaf lettuce. Escherichia coli O157:H7 strains included: 0018, 43894 and 43895 (curli producing and non-producing); 86-24 (WT), F-12 (O157-antigen negative), pRFBE (O-antigen replaced on plasmid); and 86-24, 86-24Ã eae10 (intimin negative). The eleven strains were surveyed for their hydrophobicity and cell charge using hydrophobic interaction chromatography (HIC) and electrostatic interaction chromatography (ESIC) techniques. Iceberg lettuce squares (2 x 2 cm) were inoculated with E. coli O157:H7 strains separately (7.0 log CFU/square) and dried in a laminar flow hood. Lettuce was sampled before (unrinsed) and after being rinsed twice with sterile de-ionized water (rinsed). Strips (2 mm wide) of each cut edge of the lettuce were aseptically removed. Cut-edge and whole-leaf samples were homogenized and spiral plated onto Luria-Bertani agar, supplemented with nalidixic acid (50ppm), to assess levels of bacteria remaining on the lettuce leaf after rinsing. The rinse steps were not effective in significantly removing bacteria from lettuce (p>0.05). Curli-producing and non-producing strains preferentially attached to cut edge versus the whole leaf portions of lettuce (p<0.05); however the 86-24 strains showed no preference for attachment. With the exception of 0018 curli-producing and non-producing strains, presence/absence of extracellular proteins surveyed did not influence attachment of E. coli O157:H7 to either cut edge or whole leaf lettuce. There was significantly greater attachment of the curli-producing 0018 strain over the curli non-producing 0018 strain to cut and whole lettuce surfaces (p<0.05). Production of curli and O-polysaccharide significantly increased (p<0.05) the cellâ s overall hydrophobicity of the cell; however this did not affect attachment (p<0.05). The overall cell charge of all strains was negative; however, charge did not affect attachment of E. coli O157:H7 to lettuce. The presence of extracellular appendages (curli, O157-antigen, intimin) as well as hydrophobicity and cell charge properties had no affect on attachment of the cell to lettuce.
Ph. D.

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Lakkireddy, Gopalkrishna. "Immunomodulatory properties of fungal polysaccarides." Thesis, University of Westminster, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433715.

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6

Aliwan, Fraj O. "Mechanism, structure and specificity of a feruloyl esterase from Aspergillus niger." Thesis, University of East Anglia, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267727.

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7

Papadopoulos, Magdalene. "Characterisation of Shigella flexneri polysaccharide co-polymerase (PCP) protein Wzz: analysis of structure, function and protein interaction." Thesis, 2011. http://hdl.handle.net/2440/65630.

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In Shigella flexneri, Wzz[subscript]SF determines the lipopolysaccharides (LPS) O antigen (Oag) modal chain length of 11-17 repeat units (RUs). Wzz[subscript]SF has two transmembrane regions, the N-terminal TM1 and the C-terminal TM2, and previous studies have shown that the TM2 region is important in Wzz function. The mechanism of Oag modal chain length regulation has not been revealed. Previous studies have probed the structure-function relationship of Wzz[subscript]SF and have suggested that function is a result of the overall structure and not one particular region. Genetic evidence suggests that Wzz may form a complex with other Oag processing proteins, possibly with the Wzy polymerase. This thesis describes in-frame linker mutagenesis of Wzz[subscript]SF, and five classes of Wzz insertion (Wzz[subscript]i) mutants with 5 amino acid insertions were identified: Class I (non-functional), Class II (conferred very short (VS) Oag chain length, 2-10 RUs), Class III (8-14 RUs), Class IV (11-19 RUs), and Class V (16-25 RUs). The susceptibility of strains expressing Wzzi mutants to colicin E2 was investigated, and a correlation between random/VS LPS Oag modal chain length, and susceptibility to colicin E2 was found. Chemical cross-linking analyses were conducted to assess Wzz oligomerisation and showed that high molecular weight proteins were easily detected in wild-type Wzz[subscript]SF and mutants from Classes V, but not easily detected in Classes II and III, and only Wzz[subscript]SF, Wzz[subscript]i Class IV and Class V dimers were detected after heating to 100ºC and in the presence of SDS, suggesting wild-type/longer LPS Oag modal chain length may be dependent on dimer stability. The involvement of the TM2 region in Wzz:Wzz interactions was also investigated. S. typhimurium Wzz (Wzz[subscript]ST) confers an LPS Oag modal chain length of Long-type (L-type) 19-30 RUs, and Wzz[subscript]ST and Wzz[subscript]SF have identical residues in the conserved residues of their TM2 regions. Wzz[subscript]ST expression in Wzz deficient S. flexneri strain confers an L-type LPS Oag modal chain length, however co-expression of Wzz[subscript]ST with Wzz[subscript]SF resulted in mono-modal LPS Oag modal chain length. A previously constructed Wzz mutant which had two G305A/G311A substitutions in the TM2 region confers a VS LPS Oag modal chain length (3-8 RUs), however co-expression of Wzz[subscript]G305A/G311A with wild-type Wzz[subscript]SF resulted in LPS with a bimodal Oag chain length distribution (both wild-type 11-17 RUs, and VS-type 3-8 RUs). Strains expressing His[subscript]6-Wzz[subscript]SF and FLAG-tagged version of Wzz[subscript]ST, Wzz[subscript]SF and Wzz[subscript]G305A/G311A were used in co-purification assays. Purified His[subscript]6-Wzz[subscript]SF and had FLAGWzz[subscript]ST was in the eluted fraction, demonstrating that FLAG-Wzz[subscript]ST interacted with His[subscript]6-Wzz[subscript]SF. However when His[subscript]6-Wzz[subscript]SF was purified from a strain co-expressing FLAGWzz[subscript]G305A/G311A, very low amounts of the latter were detected in the elution fraction, indicating that His[subscript]6-Wzz[subscript]SF interacted very poorly with FLAG-Wzz[subscript]G305A/G311A. These data implicate residues G305 and G311 in Wzz:Wzz interactions. A fusion of the red fluorescent protein mCherry to Wzz[subscript]SF was performed and showed the localisation of this protein was in the periphery regions of the cell, as determined by epifluorescence microscopy. Wzy was tagged with StrepTag-II at its amino terminal end; the resulting StrepII-Wzy protein was able to complement a wzy mutation, however the smooth LPS produced lacked any Oag modal chain length control. Two GFP⁺-tagged Wzy fusion proteins were constructed, pGFP⁺-StrepII-Wzy, (with the strepII linker region between gfp+ and wzy), and pGFP⁺-Wzy (strepII excised). GFP⁺-StrepII-Wzy had near wild-type Wzy functionality, and the complemented wzy mutant exhibited the wild-type trait of resistance to the lethal action of colicin E2, but GFP⁺-StrepII-Wzy could not be detected by epifluorescence microscopy, and was poorly detectable by Western immunoblotting. GFP⁺-Wzy was partially functional and the complemented wzy mutant was susceptible to colicin E2, like the StrepII-Wzy complemented wzy mutant. GFP⁺-Wzy could be detected by both Western immunoblotting and epi-fluorescence microscopy. These results implicate the N-terminal region of Wzy in Oag modal chain length determination.
Thesis (Ph.D.) -- University of Adelaide, School of Molecular and Biomedical Science, 2011

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Books on the topic "Polysaccaride"

1

Eduardo Henrique de Magalhaes Melo. Evaluation of acidic polysaccarhide derivatives. Birmingham: University of Birmingham, 1990.

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2

(Editor), K. Nishinari, F. Kremer (Editor), and G. Lagaly (Editor), eds. Physical Chemistry and Industrial Application of Gellan Gum (Progress in Colloid and Polymer Science). Springer-Verlag Telos, 2000.

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Nishinari, K. Physical Chemistry and Industrial Application of Gellan Gum. Springer London, Limited, 2003.

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Book chapters on the topic "Polysaccaride"

1

Borrelli, Silvia, Margaret A. Johnson, Rehana B. Hossany, and B. Mario Pinto. "Peptide Mimics of Bacterial Polysaccarides: Potential for Discriminating Vaccines." In ACS Symposium Series, 335–55. Washington, DC: American Chemical Society, 2008. http://dx.doi.org/10.1021/bk-2008-0989.ch015.

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2

Aroguz, Ayse Z., Kemal Baysal, and Bahattin M. Baysal. "Preparation and Characterization of Hydrogels of Several Polysaccarides for Biomaterials Applications." In Contemporary Science of Polymeric Materials, 93–101. Washington, DC: American Chemical Society, 2010. http://dx.doi.org/10.1021/bk-2010-1061.ch007.

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3

Man-Fan Wan, Jennifer. "Polysaccaride Krestin (PSK) and Polysaccharopeptide PSP." In Handbook of Biologically Active Peptides, 180–84. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-12-385095-9.00027-0.

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Conference papers on the topic "Polysaccaride"

1

Sanz, F., L. A. Ruiz Iturriaga, M. M. García Clemente, P. P. España, L. Serrano, N. Carrión Collado, J. Herrero Huertas, E. Fernández-Fabrellas, and R. Zalacaín. "Capsular Polysaccaride Thickness Is an Essential Factor for the Antibiotic Response in Bacteremic Pneumococcal Pneumonia." In American Thoracic Society 2022 International Conference, May 13-18, 2022 - San Francisco, CA. American Thoracic Society, 2022. http://dx.doi.org/10.1164/ajrccm-conference.2022.205.1_meetingabstracts.a3117.

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2

Jauho, E. S., C. Wiuff, U. Boas, K. Wredstrøm, B. Pedersen, L. O. Andresen, P. M. H. Heegaard, and M. H. Jakobsen. "Serological detection of antibodies against Salmonella polysaccarides in ELISA employing a new method for coupling of polysaccharides." In 10th International Conference on the Epidemiology and Control of Biological, Chemical and Physical Hazards in Pigs and Pork. Iowa State University, Digital Press, 1999. http://dx.doi.org/10.31274/safepork-180809-970.

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Reports on the topic "Polysaccaride"

1

Carpita, N. C. (Biosynthesis and assembly of cell wall polysaccarides in cereal grasses): Progress report. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/6380437.

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