The effect of Cytochalasin B and Jasplakinolide on depolymerization of actin filaments in goose muscles during postmortem conditioning. (December 2016)

• Record Type: Journal Article
• Authors: Zhou, Changyu; Wang, Ying; Pan, Daodong; Sun, Yangying; Cao, Jinxuan
• Is Part Of: Food research international. Volume 90(2016:Dec.)
• Page Start: 1
• Page End: 7
• Publication Date: 2016-12
• Subjects: Cytochalasin B -- Jasplakinolide -- Depolymerizing -- Myofibrillar fraction index -- G-actin -- Tenderization; Food -- Analysis -- Periodicals; Food industry and trade -- Periodicals; Food industry and trade -- Canada -- Periodicals; Food Technology -- Periodicals; Food -- Periodicals; Food-Processing Industry -- Periodicals; Aliments -- Industrie et commerce -- Périodiques; Aliments -- Industrie et commerce -- Canada -- Périodiques; Aliments -- Recherche -- Périodiques; Food industry and trade; Canada; Periodicals; Electronic journals; 664.005
• DOI: 10.1016/j.foodres.2016.10.032
• Languages: English
• ISSNs: 0963-9969

Abstract

Abstract: Breast muscles of twenty-four Eastern Zhejiang White Geese were randomly divided into three groups: control, Cytochalasin B (Cyt B) and Jasplakinolide (Jasp) treatments during postmortem conditioning. The myofibrillar fraction index (MFI), actin filaments and the levels of F-actin, G-actin and actin associated proteins (cofilins and tropomodulins) during conditioning were investigated. In control, the degraded tropomodulins, increased G-actin and disrupted actin filaments were observed at 4 and 7 days; the increase of MFI and decrease of F-actin content were shown during conditioning. Cyt B treatments accelerated the transformation from F-actin to G-actin, weakened actin filaments and increased MFI compared to the control, while Jasp gained the opposite effect against Cyt B. We concluded that depolymerization of actin filaments regulated by tropomodulins contributed to myofibrillar fraction during conditioning. This work provided a new pathway of tenderization by the depolymerization of actin filaments. Graphical abstract: Highlights: The conditioning process transformed F-actin to G-actin and increased MFI. Cyt B weakened actin filaments and increased G-actin level. Jasp gained the opposite effect against Cyt B. We provided a new pathway of tenderization by depolymerizing actin filaments.