微生物利用农业有机废物发酵产乳酸的研究进展

A Review of Microbial Fermentation of Lactic Acid from Agricultural Organic Wastes

为了降低乳酸发酵成本,减少环境污染,提高乳酸发酵的工业适应性,以农业有机废物等可再生资源为原料,微生物发酵方法生产乳酸克服了传统方法的弊端,得到广泛的应用。在介绍发酵产乳酸的微生物类群及代谢途径基础上,系统论述了微生物利用农业有机废物发酵产乳酸的研究进展,并介绍了乳酸的发酵、提取和纯化工艺。最后,从开发微生物种质资源、优化发酵和提纯工艺、扩大资源利用3个层面,展望了微生物利用农业有机废物发酵产乳酸的前景。

In order to reduce fermentation cost, decrease environmental pollution and improve the industrialflexibility of lactic acid fermentation, agricultural organic wastes and other renewable resources are used as rawmaterials, microbial fermentation of lactic acid overcomes the drawbacks of traditional methods and has beenwidely applied in production. In this paper, based on the introduction of microbial species which can producelactic acids and their metabolic pathways, the research progress of microbial fermentation of lactic acid fromagricultural organic wastes has been systematically discussed as well as the techniques of lactic acidfermentation, extraction and purification. Finally, the prospect of microbial fermentation of lactic acid fromagricultural organic wastes has been predicted from the following three aspects, i.e. exploring microbial speciesresources, optimizing the techniques of fermentation and purification as well as expanding resource usage.