不同贮藏温度下养殖大黄鱼货架期预测模型的构建

不同贮藏温度下养殖大黄鱼货架期预测模型的构建 郭全友1,2王锡昌2杨宪时1 姜朝军1李学英1迟海1 1.中国水产科学研究院东海水产研究所，上海200090;2.上海海洋大学食品学院，上海201306 摘要:为探讨不同温度范围内导致产品腐败的原因和开发货架期预测模型，通过对低温(0～10℃)、室温(25℃)和 变温贮藏下养殖大黄鱼感官、理化和微生物质量指标和细菌种群的研究，确定上述温度条件下的货架期和特定腐败菌， 开发出3种货架期预测模型，并用恒温和波动温度下的货架期进行验证。结果表明，养殖大黄鱼低温下的货架期为 5.4～17.8d，特定腐败菌为腐败希瓦氏菌和假单胞菌，室温下货架期仅1.1d，特定腐败菌为弧菌和肠杆菌。依据相对腐败 速率与温度的相关性，开发出Exponential、School-field和Square-root货架期预测模型，模型参数表观活化能Ea、最小温 度Tmin和温度特性系数a分别为74k J/mol、-10℃和0.11，并用3、7、10℃恒温和变温下的货架期对模型进行验证，相对 误差分别为0％～13.8％、-0.9％～9.8％和-0.2％～-22.1％，表明School-field和Exponential货架期模型性能优于Square-root 货架期模型，能快速有效预测0～25℃范围的大黄鱼品质。该文将为进一步研发集包装、贮藏和流通等为一体的水产品品 质智能化预警系统提供依据。 贮藏;温度;预测;货架期;特定腐败菌;预测建模;养殖大黄鱼 10.3969/j.issn.1002-6819.2012.10.042 S983 A 1002-6819(2012)-10-0267-07 2011-09-14 2012-04-23 基金项目:国家自然科学基金项目(30771675);中央级公益性科研院所基 本科研业务费专项资金(中国水产科学研究院东海水产研究所)资助项目 (2011M04);上海市教委重点学科建设项目资助(J50704);农业科技成果转化 资金(2011GB23260007)。 作者简介:郭全友(1974-)，男，河南遂平人，副研究员，博士生，研究 方向为水产品加工与安全保障。上海 中国水产科学研究院东海水产研究 所，200090。 Emai1:dhsguoqy@163.com 通信作者:杨宪时(1954-)，男，浙江奉化人，研究员，研究方向为水 产品贮藏与加工，上海 中国水产科学研究院东海水产研究所，200090。 Email:xiashiyang@126.com 万方数据 大黄鱼在自身生理生化和微生物等因素的作用下鲜 万方数据 对腐败速率被定义为温度t℃的腐败速率除以参考温 万方数据 大黄鱼多以冰藏冷链流通，0通常作为新鲜鱼和贝类 万方数据 17.8 d，特定腐败菌为腐败希瓦氏菌和假单胞菌，室温下 万方数据 @@[1] 崔建云，任发政，邓丽敏，等.现代食品包装技术[M].北 京:中国农业大学出版社，2006:117-376. @@[2] Shige Koseki. 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