Optimization of Growth Promoting Activity of Ramulus mori Oligosaccharide on Lactic Acid Bacteria(桑枝低聚糖促乳酸菌生长活性优化研究) [PDF]
Shipin kexue jishu xuebao, 2020 In order to determine the optimum growth-promoting process on lactic acid bacteria, Ramulus mori oligosaccharide was prepared by physical ultrasound, chemical acid hydrolysis and biological enzyme method, respectively.
YANG Shiyuan(杨诗沅) +5 more
doaj +1 more source
Characterization of GH Family 35 β-Galactosidase from Bacillales sp. and Its Application in Synthesis of Galactooligosaccharides(芽孢杆菌35家族β-半乳糖苷酶的性质及其在合成低聚半乳糖中的应用) [PDF]
Shipin kexue jishu xuebao, 2023 Galactooligosaccharides are important prebiotics. β-Galactosidases from Bacillales sp. can catalyze the transfer of galactoside, which can be used for the synthesis of galactooligosaccharides.
WANG Jianyu(王建宇) +4 more
doaj +1 more source
Effects of Rhizoma gastrodiae Ethanol Extracts on Mycelia Polysaccharides and β-Glucan Biosynthesis Quantity of Grifola frondosa(天麻醇提物对灰树花发酵菌丝体多糖及β-葡聚糖合成量的影响) [PDF]
Shipin kexue jishu xuebao, 2019 Rhizoma gastrodiae ethanol extracts were supplemented into the fermentation system of Grifola frondosa to study effects of R.gastrodiae ethanol extract on mycelia biomass, mycelia polysaccharides and β-glucan yield of Grifola frondosa by submerged ...
ZHONG Min(钟敏) +4 more
doaj +1 more source
Optimization of Fermentation Conditions and Immobilization of β-Glucosidase Produced by Recombinant Pichia pastoris(重组毕赤酵母生产β-葡萄糖苷酶发酵条件优化及固定化研究) [PDF]
Shipin kexue jishu xuebao, 2019 In order to achieve high expression of Trichoderma viride β-glucosidase in recombinant Pichia pastoris,the fermentation conditions of the P. pastoris KM71/pPIC9K-bgl1/pPICZ A-pdi were optimized in a 3.6L bioreactor.
WANG Fei(汪飞) +2 more
doaj +1 more source
浙江大学学报. 农业与生命科学版, 2001 木聚糖酶（1，4-β-xylanase，EC 3.2.1.8）以内切方式水解木聚糖分子中β-1，4-木糖苷键，其水解产物主要为木二糖及木二糖以上的寡聚木糖，也有少量的木糖和阿拉伯糖．该酶不仅对于降解自然界大量存在的半纤维素起着重要作用，而且也具有潜在的应用前景，如在造纸工业中用它作为纸浆的漂白剂，饲料工业中可提高纤维类饲料的消化利用率．β-1，3-1，4-葡聚糖酶（EC 3.2.1.73）能分解大麦中以β-1，3和β-1，4混合键连接的结构性非淀粉多糖β-D-葡聚糖，属于半纤维素物质．在啤酒工业中应用β-
SUN Jian-yi +3 more
doaj +1 more source
Effects of Chtosan Coating on Strawberries Preservation with Appending Auxiliary Agents
浙江大学学报. 农业与生命科学版, 2001 壳聚糖（Chitosan，缩写CTS）是甲壳素脱去乙酰基的多糖类生物大分子，具有安全无毒、成膜抑菌、营养保健等多种功能，已被广泛应用于医药、食品、饲料、环保等多个领域．近年来，随着人们对化学保鲜剂毒性的担忧，壳聚糖在食品保鲜方面的开发应用受到国际社会的高度重视，研究十分活跃．我们依据壳聚糖的成膜抑菌能力与分子量的大小密切相关，将两种分子量的壳聚糖配合并适当添加食品级助剂，以探讨壳聚糖对草莓的保鲜效应．
SHUI Mao-xing +3 more
doaj +1 more source
负载血管内皮生长因子的邻苯二酚壳聚糖体外药物缓释性能及抗菌性研究
Zhongguo shiyan zhenduanxue, 2022 目的 研究负载血管内皮生长因子（VEGF）的邻苯二酚壳聚糖水凝胶的体外药物缓释能力以及抗菌性。方法通过偶联反应和化学交联法合成载有VEGF的邻苯二酚壳聚糖水凝胶，采用傅里叶变换红外光谱分析邻苯二酚接枝情况，流变分析和接触角表征其弹性性能和亲水性，采用酶联免疫吸附试验检测VEGF体外释放情况。通过菌落计数法和抑菌环法检测其对大肠杆菌（E.coli）和具核梭杆菌（F.n）的体外抗菌性。结果 红外光谱图显示邻苯二酚壳聚糖改性成功，邻苯二酚壳聚糖水凝胶的弹性性能和亲水性相较于壳聚糖水凝胶均有增强 ...
韩佳岐 +5 more
doaj
Heterologous Expression and Enzymatic Properties of Xylanase of GH11 Family from Trichoderma asperellum(棘孢木霉GH11家族木聚糖酶的异源表达及酶学性质) [PDF]
Shipin kexue jishu xuebao, 2020 A glycoside hydrolase (GH) 11 family xylanase gene (TaXyn11A) from Trichoderma asperellum was cloned and heterologously expressed in Escherichia coli. The gene had an open reading frame of 672 bp, encoding 223 amino acids. The deduced amino acid sequence
YU Jing(余静) +6 more
doaj +1 more source
Gongye shui chuli, 2013 将壳聚糖(CTS)与活性炭(AC)制成壳聚糖-活性炭复合物(CTS-AC)。考察了壳聚糖用量、制备复合物的pH以及沉淀剂对复合物吸附性能的影响;进而研究了复合物对大肠杆菌和金黄色葡萄球菌的抑制效果。结果表明,随着复合物中壳聚糖含量的升高,复合物的吸附性能下降,但抑菌效果增强;随着制备复合物的pH的升高,复合物的吸附性能增强;以NaOH-乙醇为沉淀剂时,复合物的吸附性能最佳,但抑菌效果最差。
孙涛 +5 more
doaj +2 more sources
Advances in Elemene Nanodelivery Systems: From Material Design to Disease Treatment
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Elemene (ELE) is a bioactive sesquiterpenoid extracted from traditional Chinese herbs, demonstrating broad‐spectrum antitumor, anti‐inflammatory, and analgesic properties with significant therapeutic potential. However, its clinical utility is constrained by inherent physicochemical limitations, including volatility and hydrophobicity, which ...
Xiao Wang +9 more
wiley +1 more source