| 一种市售曲奇饼干基于脂肪氧化货架期的预测 |
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| 引用本文： | 周露,张丛兰,刘雨,张美,杨芳.一种市售曲奇饼干基于脂肪氧化货架期的预测[J].北京工商大学学报(自然科学版),2012,30(2):48-51. |
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| 作者姓名： | 周露 张丛兰 刘雨 张美 杨芳 |
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| 作者单位： | 1. 湖北大学知行学院,湖北武汉,430011
2. 武汉工程大学绿色化工过程省部共建教育部重点实验室,湖北武汉,430073 |
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| 基金项目： | 武汉市科技局青年科技晨光计划项目 |
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| 摘 要： | 以一种市售曲奇饼干为样品,采用"Schaal耐热试验法"加快样品变质速度,将样品贮藏于60℃,50%RH恒温恒湿条件下进行周期性实验,定期取样测定其酸价和过氧化值,同时进行感官评定.以贮藏时间和对应的过氧化值、酸价的对数值进行回归拟合,得到在60℃,50%RH恒温恒湿条件下,该种曲奇饼干的货架期为23 d.根据氧化一级动力学方程,应用Arrhenius公式预测该种曲奇饼干产品在常温20℃,50%RH下的货架期为368 d.
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| 关 键 词： | 曲奇饼干 货架期 过氧化值 酸价 Schaal耐热试验 Arrhenius公式 |
Shelf Life Prediction of one kind of Cookies Based on Fat Oxidation |
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| ZHOU Lu,ZHANG Cong-lan,LIU Yu,ZHANG MEI and YANG Fang.Shelf Life Prediction of one kind of Cookies Based on Fat Oxidation[J].Journal of Beijing Technology and Business University:Natural Science Edition,2012,30(2):48-51. |
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| Authors: | ZHOU Lu ZHANG Cong-lan LIU Yu ZHANG MEI and YANG Fang |
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| Institution: | 1 (1.Zhixing College,Hubei University,Wuhan 430011,China;2.Key Laboratory for Green Chemical Process of Ministry of Education,Wuhan Institute of Technology,Wuhan 430073,China) |
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| Abstract: | "Schaal heat-resistant test" was used to accelerate the deterioration rate of a kind of cookies.Acid value(AV) and peroxide value(POV) of the cookies stored at 60 ℃,50% relative humidity(RH) were measured periodically.At the same time,the corresponding sensory evaluation was processed.Storage time and logarithm of AV and POV were fitted,and the shelf life of cookies at 60 ℃,50%RH was 23 days.According to the oxidation kinetic equation and Arrhenius equation,the shelf life of cookies at 20 ℃,50%RH was predicted to be 368 days. |
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| Keywords: | cookies shelf life peroxide value acid value Schaal heat-resistant test Arrhenius equation |
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