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@ARTICLE{Claaen:867614,
author = {Claaßen, Christiane and Mack, Kevin and Rother, Dörte},
title = {{B}enchtop {NMR} for online reaction monitoring of the
biocatalytic synthesis of aromatic amino alcohols},
journal = {ChemCatChem},
volume = {12},
number = {4},
issn = {1867-3880},
address = {Weinheim},
publisher = {WILEY-VCH Verlag},
reportid = {FZJ-2019-06235},
pages = {1190-1199},
year = {2020},
abstract = {Online analytics provides insights into the progress of an
ongoing reaction without the need for extensive sampling and
offline analysis. In this study, we investigated benchtop
NMR as an online reaction monitoring tool for complex enzyme
cascade reactions. Online NMR was used to monitor a
two‐step cascade beginning with an aromatic aldehyde and
leading to an aromatic amino alcohol as the final product,
applying two different enzymes and a variety of
co‐substrates and intermediates. Benchtop NMR enabled the
concentration of the reaction components to be detected in
buffered systems in the single‐digit mM range without
using deuterated solvent. The concentrations determined via
NMR were correlated with offline samples analyzed via uHPLC
and displayed a good correlation between the two methods. In
summary, benchtop NMR proved to be a sensitive, selective
and reliable method for online reaction monitoring in
(multi‐step) biosynthesis. In future, online analytic
systems such as the benchtop NMR devices described might not
only enable direct monitoring of the reaction, but may also
form the basis for self‐regulation in biocatalytic
reactions.},
cin = {IBG-1},
ddc = {540},
cid = {I:(DE-Juel1)IBG-1-20101118},
pnm = {581 - Biotechnology (POF3-581)},
pid = {G:(DE-HGF)POF3-581},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000509320100001},
doi = {10.1002/cctc.201901910},
url = {https://juser.fz-juelich.de/record/867614},
}