关键词: 双歧杆菌, 代谢物, 代谢途径, 健康作用, 应用

Abstract: Probiotics are defined as a group of active microorganisms that are safe, non-pathogenic and beneficial to host health, and Bifidobacterium is one of the most studied intestinal probiotics. In recent years, research on the metabolites and health mechanisms of Bifidobacteria has been emphasized, as they are able to utilize nutrients through fermentation to produce different types of beneficial metabolites, which can be classified as short-chain fatty acids, phenolics, amino acids, and vitamins and so on. A number of intricate enzyme and substrate metabolic processes are involved in the production of these advantageous metabolites, which have a favorable effect on host health and show promise for use in probiotic treatments, food additives, and other uses. Bifidobacterium fermentation products are progressively being utilized in the creation of probiotic drinks, lactobacilli yogurt, and functional health goods. Therefore, this paper briefly describes the beneficial metabolite production pathways of Bifidobacteria and their health roles and applications, aiming to provide important scientific support for the development and application of Bifidobacteria metabolites in the fields of food, pharmaceuticals and nutraceuticals.

Key words: Bifidobacterium, metabolites, metabolic pathways, health effects, applications