Clermont Université, Université Blaise Pascal, Institut Pascal UMR CNRS 6602, Polytech Clermont-Ferrand, Aubière, France.
Bioresour Technol. 2013 Oct;145:166-74. doi: 10.1016/j.biortech.2012.12.137. Epub 2012 Dec 29.
VFAs can be obtained from lignocellulosic agro-industrial wastes, sludge, and various biodegradable organic wastes as key intermediates through dark fermentation processes and synthesized through chemical route also. They are building blocks of several organic compounds viz. alcohol, aldehyde, ketones, esters and olefins. These can serve as alternate carbon source for microbial biolipid, biohydrogen, microbial fuel cells productions, methanisation, and for denitrification. Organic wastes are the substrate for VFA platform that is of zero or even negative cost, giving VFA as intermediate product but their separation from the fermentation broth is still a challenge; however, several separation technologies have been developed, membrane separation being the most suitable one. These aspects will be reviewed and results obtained during anaerobic treatment of slaughterhouse wastes with further utilisation of volatile fatty acids for yeast cultivation have been discussed.
挥发性脂肪酸（VFAs）可以通过黑暗发酵过程从木质纤维素农业工业废物、污泥和各种可生物降解的有机废物中获得，作为关键中间体，也可以通过化学途径合成。它们是几种有机化合物的构建块，如醇、醛、酮、酯和烯烃。这些可以作为微生物生物脂质、生物氢、微生物燃料电池生产、甲烷化和反硝化的替代碳源。有机废物是 VFA 平台的底物，其成本为零甚至为负，将 VFA 作为中间产物，但它们从发酵液中的分离仍然是一个挑战；然而，已经开发了几种分离技术，膜分离是最合适的一种。本文将对这些方面进行综述，并讨论了在利用挥发性脂肪酸进一步培养酵母的同时，对屠宰废物进行厌氧处理所获得的结果。
