Premium
Optimized Reaction Conditions Enable the Hydration of Non‐natural Substrates by the Oleate Hydratase from Elizabethkingia meningoseptica
Author(s) -
Demming Rebecca M.,
Otte Konrad B.,
Nestl Bettina M.,
Hauer Bernhard
Publication year - 2017
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201601329
Subject(s) - chemistry , substrate (aquarium) , oleic acid , reaction conditions , natural product , fatty acid , reaction mechanism , organic chemistry , catalysis , biochemistry , biology , ecology
Abstract The oleate hydratase from Elizabethkingia meningoseptica ( Em ‐OAH) catalyzes the hydration of oleic acid (C18) to ( R )‐10‐hydroxystearic acid. In previous work, low activity of Em ‐OAH towards chemically synthesized ( Z )‐undec‐9‐enoic acid (C11) was observed. Product formation in the hydration of the truncated C11 substrate was improved by optimizing the reaction conditions by applying statistical experiment design. Optimized reaction conditions resulted in a 2.8‐fold increase in product formation in just one quarter of the time (64 % conversion in 28 h). The applicability has been assessed in the upscaling of the conversion of ( Z )‐undec‐9‐enoic acid to ( S )‐10‐hydroxyundecanoic acid (132 mg product, >95 % purity). Reaction conditions developed for the hydration of C11 facilitated the first hydration of non‐natural alkenes. By using a fatty acid dummy substrate, 1‐decene was successfully hydrated to ( S )‐2‐decanol with excellent stereoselectivity and 50 % conversion after four days of incubation.