相关实验视频
Updated: Feb 14, 2026

07:54
A Method to Assess Bacteriocin Effects on the Gut Microbiota of Mice
Published on: July 25, 2017
14.8K
从可食用的博莱图斯 (Boletus) 获得的可溶性银河体的结构阐释和对肠道微生物群的影响
Yunzhang Ding1, Xuan Li2, Yuxuan Hao3
1College of Life Sciences and Technology, Tarim University, Alar, Xinjiang, 843300, China; State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
Carbohydrate polymers
|February 12, 2026
概括
来自可食用的博莱特的两种新型银河促进有益的肠道细菌,并产生短链脂肪酸. 这些发现支持它们作为肠道健康的精密益生菌的潜力.
科学领域:
- 菌类学和食品科学 菌类学和食品科学
- 微生物学和肠道健康
- 生物化学和结构分析
背景情况:
- 可食用的波列图斯具有重要的营养和生物价值.
- 银河是一种多糖类,越来越多地被认为具有健康益处.
- 了解来自的银河体的特定特性对于它们的应用至关重要.
研究的目的:
- 从波列图斯中鉴定出两种新型银河体,NBP和BRP.
- 为了研究这些银河体对肠道微生物群和发酵的体外影响.
- 阐明它们前生物活性的结构基础.
主要方法:
- 从Neoboletus brunneissimus和Butyriboletus roseoflavus中提取和阐明银河体 (NBP和BRP) 的结构.
- 在人体肠道微生物群的体外发酵试验.
- 分析微生物组成,短链脂肪酸生产和pH值.
- 超基因组注释和分子对接以识别降解酶.
主要成果:
- NBP和BRP具有独特的结构特征,包括α-1,6-链接的Galactopyranosyl骨架.
- 这两种银河体都显著增强了益生菌的增殖,并丰富了生产丁酸盐的细菌,如Faecalibacterium prausnitzii.
- galaktan 发酵产生乳酸和SCFA,降低pH值,并调节微生物生态.
- 鉴定出Bacteroidaceae糖化物酸酶是银河系子降解的关键酶,具有特定的结合偏好.
结论:
- 玻莱图斯银河动物 (NBP和BRP) 通过调节肠道微生物群的组成和功能,显示出显著的益生菌潜力.
- 它们的结构特征影响它们与肠道微生物及其发酵产品的相互作用.
- 这些发现为开发Boletus galactans作为改善肠道健康和宿主新陈代谢的向益生菌提供了科学基础.
相关概念视频
Factors Affecting Solubility
37.3K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
37.3K
Solubility Equilibria
57.9K
Solubility equilibria are established when the dissolution and precipitation of a solute species occur at equal rates. These equilibria underlie many natural and technological processes, ranging from tooth decay to water purification. An understanding of the factors affecting compound solubility is, therefore, essential to the effective management of these processes. This section applies previously introduced equilibrium concepts and tools to systems involving dissolution and precipitation.
The...
The...
57.9K
Solubility of Ionic Compounds
68.3K
Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
68.3K
Physical Properties Affecting Solubility
27.4K
Solutions of Gases in Liquids
As for any solution, the solubility of a gas in a liquid is affected by the attractive intermolecular forces between solute and solvent species. Unlike solid and liquid solutes, however, there is no solute-solute intermolecular attraction to overcome when a gaseous solute dissolves in a liquid solvent since the atoms or molecules comprising a gas are far separated and experience negligible interactions. Consequently, solute-solvent interactions are the sole...
As for any solution, the solubility of a gas in a liquid is affected by the attractive intermolecular forces between solute and solvent species. Unlike solid and liquid solutes, however, there is no solute-solute intermolecular attraction to overcome when a gaseous solute dissolves in a liquid solvent since the atoms or molecules comprising a gas are far separated and experience negligible interactions. Consequently, solute-solvent interactions are the sole...
27.4K
Solubility
21.3K
Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
21.3K
Fruit Development, Structure, and Function
25.4K
Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
25.4K

