Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
Enzyme Microb Technol. 2021 Feb;143:109722. doi: 10.1016/j.enzmictec.2020.109722. Epub 2020 Dec 3.
Postbiotics may be defined as soluble metabolites released by food-grade microorganisms during the growth and fermentation in complex microbiological culture, food or gut. It is rich in high and low molecular weight biologically active metabolites. There are still gaps concerning these substances, mainly how to use them for food applications. Although the most recent work on preparation and application of postbiotics from several probiotics are very encouraging, the suitability of postbiotics to combat microorganisms that deal with food safety should be tested mainly by analyzing the chemical composition and conducting antagonistic tests. Consequently, foods can effectively benefit from an identified postbiotic with a defined effect. This review approached the recent advances in relation to the preparation of postbiotics from lactic acid bacteria. The function of different instrumental analysis techniques and factors affecting the chemical composition of postbiotics were also comprehensively reviewed.
后生元可以被定义为食品级微生物在复杂微生物培养物、食品或肠道中的生长和发酵过程中释放的可溶性代谢物。它富含高分子量和低分子量的生物活性代谢物。这些物质仍然存在一些空白，主要是如何将它们用于食品应用。尽管最近关于几种益生菌的后生元的制备和应用的研究非常令人鼓舞，但后生元对抗处理食品安全的微生物的适用性仍应主要通过分析化学组成和进行拮抗试验来测试。因此，食品可以有效地受益于具有明确效果的已确定的后生元。本综述探讨了最近在乳酸菌后生元制备方面的进展。还综合回顾了不同仪器分析技术的功能以及影响后生元化学组成的因素。
