Article (Scientific journals)
Effects of low voltage electrostatic field thawing on the changes in physicochemical properties of myofibrillar proteins of bovine Longissimus dorsi muscle
Qian, Shuyi; Li, Xia; Wang, Hang et al.
2019In Journal of Food Engineering, 261, p. 140-149
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Keywords :
Low voltage electrostatic field; Myofibrillar proteins; Renaturation; Thawing; Beef; Electrostatics; Fourier transform infrared spectroscopy; Hydrogen bonds; Magnetic resonance imaging; Mammals; Muscle; Nuclear magnetic resonance; Physicochemical properties; Proteins; Bonding capacity; Fourier transform infrared; Longissimus dorsi; Low field nuclear magnetic resonance (LF NMR); Low voltages; Protein surface hydrophobicities
Abstract :
[en] The effects of low voltage electrostatic field thawing (LVEFT) on the changes in physicochemical properties of myofibrillar proteins and the quality of thawed beef were investigated. Results showed that by applying LVEFT, thawing process was shortened by 42%. LVEFT significantly reduced thawing loss and shear force of the thawed beef (P < 0.05) by protecting muscle microstructures. Results of low-field nuclear magnetic resonance (LF-NMR) and magnetic resonance imaging (MRI) confirmed the reduction of thawing loss under LVEFT. Fourier transform infrared (FTIR) result suggested that the denaturated myofibrillar proteins (freezing-induced) would renaturate with thawing time, and the results of protein surface hydrophobicity and solubility were corresponded with it. The bonding capacity between protein and water (ionic bonds and hydrogen bonds) also increased with thawing time. It is demonstrated that LVEFT could effectively reduce quality loss of the beef and accelerate the renaturation of protein during thawing process while significantly shortening the thawing time (P < 0.05). These results evidenced a potential application of LVEFT method for meat thawing. © 2019 Elsevier Ltd
Disciplines :
Food science
Author, co-author :
Qian, Shuyi  ;  Université de Liège - ULiège > Terra
Li, Xia ;  Université de Liège - ULiège > Terra
Wang, Hang;  Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Mehmood, Waris;  Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Zhong, Ming;  Changhong Meiling Company Limited, Hefei, 230051, China
Zhang, Chunhui;  Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Blecker, Christophe ;  Université de Liège - ULiège > Département GxABT > SMARTECH
Language :
English
Title :
Effects of low voltage electrostatic field thawing on the changes in physicochemical properties of myofibrillar proteins of bovine Longissimus dorsi muscle
Publication date :
2019
Journal title :
Journal of Food Engineering
ISSN :
0260-8774
Publisher :
Elsevier Ltd, Netherlands
Volume :
261
Pages :
140-149
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NSCF - National Natural Science Foundation of China [CN]
Available on ORBi :
since 16 June 2020

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