相关实验视频
Updated: Aug 9, 2026

00:05
Preparation of High-Quality Fermented Fish Product
Published on: August 23, 2019
10.4K
在大米葡萄酒液体发酵过程中,风味化合物的变化与微生物群体生态继承之间的相关性
Jian-Zhong Xu1, Yang-Yang Zhang2, Wei-Guo Zhang2
1The Key Laboratory of Industrial Biotechnology, School of Biotechnology, Ministry of Education, Jiangnan University, 1800 # Lihu Road, WuXi, 214122, People's Republic of China. xujianzhong@jiangnan.edu.cn.
World journal of microbiology & biotechnology
|November 19, 2023
概括
这项研究揭示了米酒微生物如何影响风味. 确定了关键的细菌和真菌,显示了与改善酒生产的风味化合物的特定相关性.
科学领域:
- 微生物学 微生物学
- 食品科学 食品科学 食品科学
- 发酵技术的发酵技术
背景情况:
- 微生物极大地影响了米酒的风味特征.
- 了解微生物在味道开发中的作用对于质量控制至关重要.
- 在发酵过程中微生物群落的生态继承仍然未被充分探索.
研究的目的:
- 为了研究微生物群落继承和米酒发酵期间的风味化合物演变之间的动态关系.
- 确定关键的微生物参与者及其与特定风味化合物的相关性.
- 为优化酒发酵过程提供见解.
主要方法:
- 在整个酒发酵过程中监测微生物群落组成 (细菌和真菌属).
- 分析关键的风味化合物,包括挥发性化合物和自由氨基酸.
- 微生物动态和风味化合物概况之间的相关性分析.
主要成果:
- 微生物群落的组成呈现出动态变化,确定了13种主要的细菌和4种主要的真菌属.
- 检测出112种挥发性化合物和17种自由氨基酸,显示出整个发酵过程中的动态变化.
- 在低温发酵 (LTF) 阶段,酒精-比下降表明的形成增强.
- 像Delftia,Chryseobacterium,Rhizopus和Wickerhamomyces这样的特定属被确定为核心功能微生物.
结论:
- 这项研究阐明了微生物群落转移和米酒液体发酵中的风味化合物变化之间的复杂相关性.
- 已识别的核心微生物为提高酒质量提供了目标.
- 这些发现为酒生产的技术优化提供了宝贵的参考.
相关概念视频
Microbial Fermentation
Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...
Microbes in Food Production
Microbial fermentation is central to food biotechnology, enhancing flavor, texture, preservation, and stability. Fermentative microorganisms metabolize carbohydrates into organic acids, alcohols, and other metabolites that inhibit spoilage organisms and improve digestibility while contributing distinctive sensory qualities.In baking, amylases naturally present in flour hydrolyze starch into monosaccharides such as glucose, which Saccharomyces cerevisiae ferments anaerobically. Through...
Microbes in Beverage Production
Alcoholic beverages such as wine, beer, and spirits are the products of microbial fermentation processes that transform simple sugars into ethanol and a wide array of complex flavor compounds. These transformations rely on the metabolic activities of specific yeasts and bacteria, which are selected and controlled to yield the desired beverage characteristics.Wine Fermentation and MaturationWine production begins with the crushing of grapes to release juice and pulp, forming a must that is...
Microbes in the Production of Fermented Foods
Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...
Microbial Spoilage of Food
Microbial food spoilage refers to the degradation of food quality resulting from the metabolic activity of microorganisms such as bacteria, yeasts, and molds. These microbes proliferate on various food substrates depending on factors such as moisture content, nutrient availability, and storage conditions, leading to undesirable sensory and structural changes.Bacteria are primary agents of spoilage in high-moisture, nutrient-dense foods like meat, milk, and vegetables. Microbial spoilage occurs...
Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...

