The invention relates to a method for converting ricinoleic acid that comprises the following successive stages:
a) fermentation of ricinoleic acid by a bacterium, a yeast or a fungus, in order to obtain 7-hydroxy-9-octadecenedioic diacid,
b) the esterification of the 7-hydroxy-9-octadecenedioic diacid obtained in-stage during step a), in order to form the corresponding methyl diester,
c) high-temperature cracking of the product obtained during step b), in order to form a mixture of methyl undecylenate and methyl 7-oxoheptanoate,
d) separating the methyl undecylenate and methyl 7-oxoheptanoate obtained in step c),
e) hydrolysing the methyl undecylenate obtained in step d), for forming the undecylenic acid.
本发明涉及一种转化
蓖麻油酸的方法,包括以下连续阶段:a)通过细菌、酵母或真菌发酵
蓖麻油酸,以获得7-羟基-
9-十八烯二酸,b)在步骤a)中获得的7-羟基-
9-十八烯二酸酯化,形成相应的甲基双酯,c)高温裂解步骤b)中获得的产物,形成甲基
十一烯酸甲酯和甲基
7-氧代庚酸甲酯的混合物,d)分离步骤c)中获得的甲基
十一烯酸甲酯和甲基
7-氧代庚酸甲酯,e)
水解步骤d)中获得的甲基
十一烯酸甲酯,形成
十一烯酸。