Combined Biocatalytic and Chemical Transformations of Oleic Acid to ω-Hydroxynonanoic Acid and α,ω-Nonanedioic Acid
作者:Satish Koppireddi、Joo-Hyun Seo、Eun-Yeong Jeon、Partha Sarathi Chowdhury、Hyun-Young Jang、Jin-Byung Park、Yong-Uk Kwon
DOI:10.1002/adsc.201600216
日期:2016.10.6
A practical chemoenzymatic method for the synthesis of 9‐hydroxynonanoic acid and 1,9‐nonanedioic acid (i.e., azelaic acid) from oleic acid [(9Z)‐octadec‐9‐enoic acid] was investigated. Biotransformation of oleic acid into 9‐(nonanoyloxy)nonanoic acid via 10‐hydroxyoctadecanoic acid and 10‐keto‐octadecanoic acid was driven by a C‐9 double bond hydratase from Stenotrophomonas maltophilia, an alcohol
研究了从油酸[(9 Z)-十八烷基-9-烯酸]合成9-羟基壬酸和1,9-壬二酸(即壬二酸)的实用化学酶法。通过嗜麦芽窄食单胞菌的C-9双键水合酶,来自黄褐微球菌的醇脱氢酶和Baeyer-Villiger ,将油酸通过10-羟基十八碳烯酸和10-酮-十八碳烯酸生物转化为9-(壬酰氧基)壬酸。来自恶臭假单胞菌KT2440的单加氧酶(BVMO),其在重组大肠杆菌中表达。生成酯(即BVMO反应产物)后,将化合物化学水解为正构壬酸和9-羟基壬酸,因为正壬酸对大肠杆菌有毒。该酯也被转化为9-羟基壬酸甲酯和正壬酸甲酯,后者可以被恶臭假单胞菌GPo1的AlkBGT氧化成9-羟基壬酸甲酯。最后,在相当温和的反应条件下,高产率将9-羟基壬酸化学氧化为壬二酸。例如,在高细胞密度(即10 g干细胞/ L)下进行全细胞生物转化,可使最终酯产物的浓度和容积生产率分别达到25 mM和2.8 mM h -1, 分别。基于