来自Pleurotus eryngii的多糖:顺序提取和结构特征
Ziyan Sun1, Zhicong Song1, Andong Zhou1
1Engineering Research Center of Glycoconjugates of Ministry of Education, Jilin Provincial Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China.
Food chemistry: X
|February 2, 2026
概括
使用一种新的序列方法提取了Pleurotus eryngii多糖. 这项研究确定了五种不同的多糖体结构,包括一种新的α-1,2-D-曼南,提供了对其组成的见解.
科学领域:
- 菌类学 菌类学是指菌类学.
- 碳水化合物化学 碳水化合物化学
- 生物化学 生化学
背景情况:
- 来自Pleurotus eryngii (P. eryngii) 的多糖体表现出各种生物活动.
- 了解它们的结构多样性对于探索它们的潜在应用至关重要.
- 现有的提取方法可能无法完全捕捉P. eryngii多糖的复杂性.
研究的目的:
- 开发和验证P. eryngii多糖的顺序提取策略.
- 描述提取的多糖的结构特征和相对丰度.
- 为了识别P. eryngii.内部的新型多糖体结构.
主要方法:
- 使用了一种使用渐变增强溶剂净化技术的顺序提取策略.
- 方法包括冷水和热水提取,酶辅助提取和稀释/缩处理.
- 用先进的分析技术进行了纯化多糖的表征.
主要成果:
- 获得了五种不同的多糖体 (CWP,HWP,EAP,DAP,CAP),总产量得到了改善.
- 在净化后分离出了八种同质的多糖.
- P. eryngii多糖体包括五种结构类型:β-1,3-D-葡萄糖,β-1,6-D-葡萄糖,α-1,6-D-银,α-1,3-D-曼南和一个新的α-1,2-D-曼南.
- 这些结构的相对丰富度比被确定为 20:7:4.3:1.6:1.
结论:
- 开发的顺序提取方法是有效的,并提高了多糖的产量.
- P. eryngii含有多种多糖结构,包括一个以前未被描述的α-1,2-D-mannan.
- 这项研究为未来研究P. eryngii多糖的结构-活性关系和应用奠定了基础.
相关概念视频
01:26Biosynthesis of Polysaccharides
640
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...
640
01:15Cellulose and Pectic Polysaccharides
4.9K
Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth. Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
As a cell matures, its cell wall specializes according to its type. For example, the...
As a cell matures, its cell wall specializes according to its type. For example, the...
4.9K
02:22Structures of Solids
17.7K
Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
17.7K
02:34Structural Isomerism
21.7K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
21.7K
03:38Structure of Lipids
98.8K
Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon-carbon or carbon-hydrogen bonds. Non-polar molecules are hydrophobic (“water fearing”), or insoluble in water. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic...
98.8K
00:56Viral Structure
74.5K
Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.
74.5K