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A novel method for monitoring troponin T fragment from rabbit skeletal muscle during aging using quartz crystal microbalance
Author(s) -
Iwasaki Tomohito,
Taniguchi Hironobu,
Hasegawa Yasuhiro,
Maeda Naoyuki,
Yamamoto Katsuhiro
Publication year - 2016
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.7558
Subject(s) - quartz crystal microbalance , myofibril , chemistry , troponin t , chromatography , troponin i , fragment (logic) , myoglobin , troponin , blot , detection limit , biochemistry , organic chemistry , medicine , adsorption , myocardial infarction , computer science , gene , programming language
BACKGROUND Troponin T ( TnT ) is degraded during aging of meat. The proteolytic fragment of TnT , especially the 30 kDa fragment, is used as one of indices for estimating aging of meat. We have tried to use quartz crystal microbalance ( QCM ), which is widely used to analyze interaction among macromolecules, to detect proteolytic fragments of TnT during aging of meat. RESULT The frequency of the QCM sensor with immobilized anti‐ TnT antibody in high‐salt solution extracts of both myofibrils and whole meat decreased with time of aging. The staining intensity of the bands, including a 30 kDa fragment bound to anti‐ TnT antibody, also increased with time of aging in western blotting. These results confirm that TnT is degraded during aging and released from thin filaments, and QCM analysis is sufficiently sensitive to detect the TnT fragments. CONCLUSION The QCM analysis of muscle and myofibrillar extracts using anti‐ TnT antibody‐immobilized sensor can be used as a convenient tool for monitoring the extent of aging of meat. © 2015 Society of Chemical Industry