相关实验视频

Updated: Sep 13, 2025

Sequencing of Plant Wall Heteroxylans Using Enzymic, Chemical Methylation and Physical Mass Spectrometry, Nuclear Magnetic Resonance Techniques

Sequencing of Plant Wall Heteroxylans Using Enzymic, Chemical Methylation and Physical Mass Spectrometry, Nuclear Magnetic Resonance Techniques

Published on: March 24, 2016

乌尔万作为生物应用的寡糖类来源:在生物相容介质中进行酶性水解

Beatrice Zonfrillo¹, Maria Bellumori¹, Eleonora Truzzi²

¹Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), University of Florence, via Ugo Schiff 6, Sesto Fiorentino, Italy.

|July 25, 2025

概括

这项研究优化了来自Ulva生物质的Ulvan寡糖的酶性水解. 发现了有效生产这些可溶性化合物用于生物应用的条件.

科学领域:

海洋生物技术海洋生物技术
碳水化合物化学碳水化合物化学
酶学是一种酶学.

背景情况:

从Ulva生物质中提取的Ulvan寡糖,与高分子量Ulvan相比,提供了增强的溶解性和生物潜力.
这些化合物有望促进益生菌生长并表现出抗炎作用.
使用ulvan lyase的酶性水解是一种可行的替代方法,可以替代传统的方法进行ulvan分解.

研究的目的:

开发一种快速,可扩展和高效的方法来完成乌尔旺水解.
在适合生物应用的低盐度下生产乌尔旺寡糖.
为了评估ulvan lyase酶的强度和运动参数.

主要方法:

酶活性在各种pH值 (6-10.5) 和缓冲条件 (Tris-HCl,碳酸盐,酸盐) 中进行了评估.
研究了不同盐度 (NaCl/KCl从0-200mM) 对酶活性的影响.
在pH 7.5.5下使用特定度的乌尔万,KCl和酸盐缓冲剂来确定最佳的水解条件.

主要成果:

确定了乌尔万水解的最佳条件是3 mg/mL的乌尔万,25 mM的KCl和100 mM的酸盐缓冲剂在pH 7.5.5时.
该研究通过在优化,减少盐的条件下,通过酶性水解成功产生了乌尔万寡糖.
使用2D-NMR和UHPLC-MS/MS.进行了由此产生的寡糖的表征.

结论:

优化的酶解水解提供了一条有效的途径,从Ulva生物质中产生有价值的Ulva寡糖.
开发的方法有助于生产具有各种生物应用潜力的乌尔旺寡糖.
这些发现有助于通过可持续的生物化学加工对海洋生物质的利用.

关键词:

这就是NMR-DOSYY.海菜沙拉海菜沙拉在UHPLC-MS/MS中使用.Ulva lactucaca 的意思是"乌尔瓦的乳汁".尿酸是一种尿酸.ulvan lyase PLSV_387575 这是一个很大的问题.

更多相关视频

OLIgo Mass Profiling OLIMP of Extracellular Polysaccharides

OLIgo Mass Profiling OLIMP of Extracellular Polysaccharides

Published on: June 20, 2010

High-throughput Screening of Carbohydrate-degrading Enzymes Using Novel Insoluble Chromogenic Substrate Assay Kits

High-throughput Screening of Carbohydrate-degrading Enzymes Using Novel Insoluble Chromogenic Substrate Assay Kits

Published on: September 20, 2016

相关概念视频

Biosynthesis of Polysaccharides

Biosynthesis of Polysaccharides

Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...

Oligosaccharide Assembly

Oligosaccharide Assembly

Protein glycosylation starts in the ER lumen and continues in the Golgi apparatus. Glycosyltransferases catalyze the addition of sugar molecules or glycosylation of proteins. Usually, these enzymes add sugars to the hydroxyl groups of selected serine or threonine residues to form O-linked glycans or the amino groups of asparagine residues to form N-linked glycans. Different positions on the same polypeptide chain can contain differently linked glycans.
Multiple sugar molecules that may or may...

Hydrolysis

Hydrolysis

Overview
Hydrolysis is a chemical reaction in which the addition of water breaks down a polymer into its simpler monomer units. For example, peptides break into amino acids, carbohydrates into simple sugars, and DNA into nucleotides. Enzymes often facilitate these processes.
Hydrolysis Reverses Dehydration Synthesis
Complex carbohydrates can be broken down by breaking the bonds between individual sugar units. The reaction breaks a glycosidic bond as water is added to the compound. The...