Publication date: Available online 23 April 2018 Source:LWT
Author(s): Ulrik K. Sundekilde, Lise Jarno, Nina Eggers, Hanne Christine Bertram
This study presents an application of proton (1H) NMR spectroscopy for monitoring of enzyme-assisted hydrolysis of muscle protein under both at-line and real-time conditions. Measurements were carried out on sample material >1 g, and two different enzymes (alcalase and papain) were examined. The real-time monitoring of reactions was carried out directly in the NMR spectrometer, and the technique enabled the dynamic and quantitative detection of a total of 40 metabolites. The approach enabled to follow time evolution and kinetic modelling allowed extraction of kinetic parameters; a was calculated to 0.051 min-1 and 0.029 min-1 for alcalase and papain, respectively, revealing a higher hydrolysis velocity for alcalase than papain. The study demonstrates that NMR spectroscopy is an excellent analytical platform for real-time monitoring of the major metabolite composition changes occurring during an enzymatic hydrolysis. Industrial relevance: Protein hydrolysis is a commonly applied technology in food industry and the presented NMR methodology for kinetic studies of metabolite generation during a hydrolysis process would be applicable for testing and optimization of different raw materials and processing conditions.
[NMR paper] In vivo NMR spectroscopy: toward real time monitoring of environmental stress.
In vivo NMR spectroscopy: toward real time monitoring of environmental stress.
http://www.bionmr.com//www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--media.wiley.com-assets-7315-19-Wiley_FullText_120x30_orange.png Related Articles In vivo NMR spectroscopy: toward real time monitoring of environmental stress.
Magn Reson Chem. 2015 Sep;53(9):774-9
Authors: Soong R, Nagato E, Sutrisno A, Fortier-McGill B, Akhter M, Schmidt S, Heumann H, Simpson AJ
PMID: 25296400
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[NMR paper] Real-Time Monitoring of Cancer Cell Metabolism and Effects of an Anticancer Agent using 2D In-Cell NMR Spectroscopy.
Real-Time Monitoring of Cancer Cell Metabolism and Effects of an Anticancer Agent using 2D In-Cell NMR Spectroscopy.
http://www.bionmr.com//www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--media.wiley.com-assets-2250-98-WileyOnlineLibrary_FullTextOnline_120x27.gif Related Articles Real-Time Monitoring of Cancer Cell Metabolism and Effects of an Anticancer Agent using 2D In-Cell NMR Spectroscopy.
Angew Chem Int Ed Engl. 2015 Mar 5;
Authors: Wen H, An YJ, Xu WJ, Kang KW, Park S
Abstract
Altered metabolism is a critical part of...
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03-11-2015 09:59 PM
Real-time cardiac metabolism assessed with hyperpolarized [1-13C]acetate in a large-animal model
From The DNP-NMR Blog:
Real-time cardiac metabolism assessed with hyperpolarized acetate in a large-animal model
Flori, A., et al., Real-time cardiac metabolism assessed with hyperpolarized acetate in a large-animal model. Contrast Media & Molecular Imaging, 2014: p. n/a-n/a.
http://dx.doi.org/10.1002/cmmi.1618
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01-14-2015 04:22 PM
[NMR paper] Real-time protein NMR spectroscopy and investigation of assisted protein folding.
Real-time protein NMR spectroscopy and investigation of assisted protein folding.
Real-time protein NMR spectroscopy and investigation of assisted protein folding.
Biochim Biophys Acta. 2014 Dec 10;
Authors: Kumar A, Balbach J
Abstract
BACKGROUND: During protein folding reactions toward the native structure, short-lived intermediate states can be populated. Such intermediates expose hydrophobic patches and can self-associate leading to non-productive protein misfolding. A major focus of current research is the characterization...
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12-17-2014 09:43 PM
Real-time protein NMR spectroscopy and investigation of assisted protein folding
Real-time protein NMR spectroscopy and investigation of assisted protein folding
Publication date: Available online 11 December 2014
Source:Biochimica et Biophysica Acta (BBA) - General Subjects</br>
Author(s): Amit Kumar , Jochen Balbach</br>
Background During protein folding reactions toward the native structure, short-lived intermediate states can be populated. Such intermediates expose hydrophobic patches and can self-associate leading to non-productive protein misfolding. A major focus of current research is the characterization of short-lived intermediates...
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12-12-2014 11:30 AM
[NMR paper] Real-Time Monitoring of New Delhi Metallo-?-Lactamase Activity in Living Bacterial Cells by (1) H NMR Spectroscopy.
Real-Time Monitoring of New Delhi Metallo-?-Lactamase Activity in Living Bacterial Cells by (1) H NMR Spectroscopy.
Related Articles Real-Time Monitoring of New Delhi Metallo-?-Lactamase Activity in Living Bacterial Cells by (1) H NMR Spectroscopy.
Angew Chem Int Ed Engl. 2014 Jan 23;
Authors: Ma J, McLeod S, Maccormack K, Sriram S, Gao N, Breeze AL, Hu J
Abstract
Disconnections between in vitro responses and those observed in whole cells confound many attempts to design drugs in areas of serious medical need. A method based on 1D (1) H...
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[NMR paper] Real-time NMR monitoring of protein-folding kinetics by a recycle flow system for temperature jump.
Real-time NMR monitoring of protein-folding kinetics by a recycle flow system for temperature jump.
Real-time NMR monitoring of protein-folding kinetics by a recycle flow system for temperature jump.
Anal Chem. 2013 Sep 12;
Authors: Yamasaki K, Obara Y, Hasegawa M, Tanaka H, Yamasaki T, Wakuda T, Okada M, Kohzuma T
Abstract
An NMR method was developed that allows for real-time monitoring of reactions (on the order of seconds) induced by temperature jump. In a recycle flow system, heating and cooling baths were integrated, with the latter...
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Monitoring Mechanistic Details in the Synthesis of Pyrimidines via Real-Time, Ultrafast Multidimensional NMR Spectroscopy
Monitoring Mechanistic Details in the Synthesis of Pyrimidines via Real-Time, Ultrafast Multidimensional NMR Spectroscopy
Zulay D. Pardo, Gregory L. Olsen, Mari?a Encarnacio?n Ferna?ndez-Valle, Lucio Frydman, Roberto Marti?nez-A?lvarez and Antonio Herrera
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja210154g/aop/images/medium/ja-2011-10154g_0006.gif
Journal of the American Chemical Society
DOI: 10.1021/ja210154g
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA
http://feeds.feedburner.com/~r/acs/jacsat/~4/tEFGGh16-DU
Real-time monitoring of enzyme-assisted animal protein hydrolysis by NMR spectroscopy – An NMR reactomics concept
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