食品科学 ›› 2010, Vol. 31 ›› Issue (20): 490-493.doi: 10.7506/spkx1002-6630-201020104

• 包装贮运 • 上一篇    下一篇

卵形鲳鲹贮藏过程中品质变化动力学模型

黄 卉,李来好* ,杨贤庆,郝淑贤,马海霞,岑剑伟,李 莎   

  1. 中国水产科学研究院南海水产研究所
  • 收稿日期:2010-06-30 修回日期:2010-09-15 出版日期:2010-10-25 发布日期:2010-12-29
  • 通讯作者: 李来好 E-mail:laihaoli@163.com
  • 基金资助:

    中央级公益性专项资金项目(2009TS14)

Kinetic Model of Quality Change for Trachinotus ovatus during Storage

HUANG Hui,LI Lai-hao*,YANG Xian-qing,HAO Shu-xian,MA Hai-xia,CEN Jian-wei,LI Sha   

  1. (South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China)
  • Received:2010-06-30 Revised:2010-09-15 Online:2010-10-25 Published:2010-12-29
  • Contact: LI Lai-hao E-mail:laihaoli@163.com

摘要:

研究不同温度贮藏条件下卵形鲳鲹挥发性盐基氮值(TVB-N)、硫代巴比妥酸值(TBA)和菌落总数随时间的变化规律及其动力学特性,建立TVB-N、TBA 和菌落总数与贮藏温度和贮藏时间的动力学模型,以预测和控制卵形鲳鲹在贮藏过程中的品质和货架期。贮藏过程中卵形鲳鲹的TVB-N、TBA 和菌落总数增加,随着贮藏温度的升高,卵形鲳鲹品质劣化速度加快。TVB-N、TBA 和菌落总数均符合一级化学反应动力学模型,并且与Arrhenius方程有很高的拟合度。利用化学动力学原理建立了卵形鲳鲹贮藏过程中TVB-N、TBA 和菌落总数的动力学模型:t= (lnAt - lnA0)/(1.68 × 109 × e-56600/RT),t= (lnAt - lnA0)/(3.10 × 108 × e-52090/RT),t= (lnAt - lnA0)/(1.87 × 108 × e-47550/RT)。卵形鲳鲹的贮藏期可通过以上动力学模型进行预测。

关键词: 卵形鲳鲹, 挥发性盐基氮(TVB-N), 硫代巴比妥酸值(TBA), 菌落总数, 动力学模型

Abstract:

Total volatile basic nitrogen (TVB-N), thiobarbituric acid (TBA) and aerobic bacterial count of Trachinotus ovatus at different storage temperatures were investigated. The kinetic models of TVB-N, TBA and aerobic bacterial count were established to predict shelf life and control the quality change of Trachinotus ovatus during storage. Results indicated that TVB-N, TBA and aerobic bacterial count were increased during storage with the increase of storage time and temperature. The reaction model was first order and Arrhenius equation could be used to describe the change of TVB-N, TBA and aerobic bacterial count. The kinetic models of Trachinotus ovatus were t = (lnAt-lnA0)/(1.68×109×e-56600/RT) for TVB-N, t = (lnAt-lnA0)/(3.10×108× e-52090/RT) for TBA, t = (lnAt - lnA0)/(1.87 × 108 × e-47550/RT) for aerobic bacterial count. Therefore, the storage period of Trachinotus ovatus could be calculated using these models.

Key words: Trachinotus ovatus, volatile basic nitrogen (TVB-N), thiobarbituric acid (TBA), aerobic bacterial count, kinetic model

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