摘要
对淡腌鳗鱼在5、15、25℃下,不同时间的挥发性盐基氮(TVBN),活菌总数(TVC)以及可滴定酸度等进行监控,建立腌鱼品质变化的动力学模型从而利用Arrhenius方程预测淡腌鳗鱼的货架寿命。结果表明,TVBN的品质变化遵循0级反应模型,而可滴定酸度和TVC遵循1级反应模型。采用TVC作为品质指标其货架寿命(Qs)的预测模型是:QS=60exp(-0.9557(T-278)/10)(5℃~15℃),QS=21exp(-0.47(T-288)/10)(15℃~25℃)。这个模型与感官评定货架寿命比较结果可靠,相对误差小于9%。
The paper has set up quality kinetics model of cured fish by determination the TVBN, TVC, pH, at 5℃, 15℃, 25℃ of light salting eel in different times, therefore we can forecast the shelf-life using Arrhenius equation. The results showed that the quality changes of TVBN fit 0 order reaction model, pH and TVC fit 1 order model. The shelf-life(Qs) forecast model using TVC as indicator was:Qs=60exp(-0.955 7 T-278/10) (5 ℃-15 ℃ ), Qs=60exp(-0.47T-288/10)( 15 ℃-25 ℃ ). This model was accurate compare with sensory evaluation, RSD〈9 %.
出处
《食品研究与开发》
CAS
北大核心
2008年第8期133-136,共4页
Food Research and Development