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Journal of Tea Science ›› 2012, Vol. 32 ›› Issue (4): 297-304.doi: 10.13305/j.cnki.jts.2012.04.004

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Quality Changes of Large Yellow Croaker (Pseudosciaena Crocea) Fillets Dip by Tea Polyphenols Stored under Vacuum Packaging at 0℃

ZHAO Jin1,2, WANG Jin-lin1, LI Jian-rong1,3*, ZHU Jun-li1, LV Wei-jin1   

  1. 1. Food Safety Key Lab of Zhejiang Province, College of Food Science and Engineering, Zhejiang Gongshang University, Hangzhou 310035, China;
    2. Zhejiang Provincial Engineering Laboratory of Quality Controlling Technology and Instrumentation for Marine Food, College of Life Science, China Jiliang University, Hangzhou 310018, China;
    3. Food Safety Key Lab of Zhejiang Province, Bohai University, Jinzhou 121013, China
  • Received:2011-12-09 Revised:2012-04-10 Online:2012-08-15 Published:2019-09-05

Abstract: :The effect of tea polyphenols (TP, 0.2%, W/V) on the fillet quality of large yellow croaker (Pseudosciaena crocea) were evaluated over a 20 day storage under refrigerated temperature (0℃). The control and the treated fillet samples were analysed periodically for physicochemical (pH, MDA, K value, percentage of metmyoglobin, myoglobin value, Caspase 3 activity) and microbiological (total viable counts) indexes. Dipping treatments predominantly decreased chemical changes, inhibited bacterial growth and prolonged the quality of samples, compared to control fillets. The results indicated that the effect of the TP treatments on the fillet samples were to enable the good quality characteristics to be retained for longer time under the cold storage (0℃).

Key words: large crocea fillets, tea polyphenols, refrigeration, freshness

CLC Number: