益生菌Enterococcus Lactis SF68作为一种潜在的食品发酵微生物,用于安全的食品生产
Belay Tilahun Tadesse1,2, Liuyan Gu3, Christian Solem1
1National Food Institute, Research Group for Microbial Biotechnology and Biorefining, Technical University of Denmark, Lyngby 2800, Denmark.
Journal of agricultural and food chemistry
|August 5, 2024
概括
乳腺肠球菌 (Enterococcus lactis SF68) 是一种安全的益生菌菌株,对食品发酵具有很大的潜力. 它会代谢各种糖,产生抗微生物细菌素,并产生理想的芳香化合物,提高食品安全和质量.
科学领域:
- 食品微生物学 食品微生物学
- 益生菌 益生菌 益生菌
- 食品发酵技术 食品发酵技术
背景情况:
- 在发酵食品中使用肠球菌是有争议的,因为一些毒性菌株.
- 像Enterococcus lactis SF68这样的益生菌菌株提供了潜在的好处.
- 欧洲食品安全局 (EFSA) 的批准强调了SF68对食品和料的安全性.
研究的目的:
- 用于食品发酵的益生菌菌株Enterococcus lactis SF68的特征.
- 为了评估其代谢能力,抗菌性质和芳香化合物生产.
- 评估其适用于提高发酵食品的安全性和质量.
主要方法:
- 基因组分析以预测代谢途径和细菌素生产.
- 碳水化合物代谢 (乳糖,糖糖) 的实验验证.
- 对Listeria monocytogenes进行抑制测定.
- 发酵试验,以评估代谢转移和芳香化合物 (乙,二甲) 的产生,包括在空气化下.
主要成果:
- SF68显示了广泛的碳水化合物利用,包括乳糖和糖.
- 鉴定了细菌生物合成集群,显示出强烈的抑制Listeria monocytogenes.
- SF68的发酵特性类似于Lactococcus lactis的发酵特性,具有混合酸发酵模式.
- 在特定条件下,黄油芳香化合物 (乙,二乙烯) 的生产得到证实并得到加强.
结论:
- 乳腺肠杆菌 (Enterococcus lactis SF68) 是一种多功能益生菌,在食品发酵中具有显著的潜力.
- 它利用多种碳水化合物和产生细菌素的能力有助于消除病原体.
- SF68的香味生产能力增强了发酵食品的感官特性.
- 这种菌株的坚固性,包括在高温下生长,使其在食品保存方面具有价值.
相关概念视频
Microorganisms in Agriculture and Food industry
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
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...


