生物技术法生产丙酮酸的研究进展

Progress in Biotechnological Production of Pyruvic Acid

丙酮酸是一种重要的有机酸 ,广泛应用于制药、日化、农用化学品和食品等工业中。相对于化工法生产的丙酮酸而言 ,生物技术法生产的丙酮酸具有低成本、高质量等优势。生物技术法生产丙酮酸主要包括发酵法和酶法 ,前者又包括直接发酵法和休止细胞法。在对比各种生产方法的基础上 ,考虑到球拟酵母属的多重维生素营养缺陷型菌株是目前最具竞争力的丙酮酸生产菌 ,因此重点介绍了发酵法生产丙酮酸在菌种、发酵条件优化等方面的研究进展 。

Pyruvate, an important organic acid, is widely used in the industries of pharmaceuticals, chemicals, agrochemicals, food additives and so on. Compared with the chemical method, biotechnological production of pyruvic acid is an alternative approach because of the low cost and high product quality. In this article, biosynthesis of pyruvate, including direct fermentative production and resting cell method as well as enzymatic method, was discussed. Furthermore, a comparison of these different methods was proposed. Since, a multi-vitamin auxotrophic strain of Torulopsis glabrata is the most competitive strain for industrial production of pyruvate, emphasis was therefore placed on the development of strains screening and fermentation optimization. Finally, some suggestions were put forward to improve the research in this field in the near future.