低温等离子体处理的鲜切猕猴桃片货架期预测模型
作者:
作者单位:

(陕西师范大学食品工程与营养科学学院 西安 710119)

作者简介:

陈月圆(2000—),女,硕士生

基金项目:

陕西省重点研发计划项目(2020NY-099)


Shelf Life Prediction Model of Fresh-cut Kiwifruit Slices Treated with Low-temperature Plasma
Author:
Affiliation:

(Shaanxi Normal University,College of Food Engineering and Nutritional Science,Xi'an 710119)

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    摘要:

    研究贮藏温度对低温等离子体处理的鲜切猕猴桃片品质和菌落总数的影响,建立品质指标和菌落总数货架期预测模型。将经低温等离子体处理的鲜切猕猴桃片分别在0,5,10,15,20,25 ℃贮藏,定期测定VC含量、叶绿素含量、总酚含量、菌落总数、脆性、色差及固酸比,探讨温度对其的影响,确定各监测指标的拟合方程。结合Arrhenius 模型和Belehradck 模型,建立鲜切猕猴桃片品质指标和菌落总数的货架期预测模型。结果表明:贮藏温度对固酸比、总酚含量及叶绿素含量的影响不显著,对色差、脆性、VC含量及菌落总数的影响显著。鲜切猕猴桃片贮藏过程中VC含量、脆性、色差及菌落总数的变化分别遵循一级反应、一级反应、零级反应及Logistics方程模型。建立的鲜切猕猴桃片各品质指标货架期预测模型SL脆性、SL色差、SLVC及菌落总数货架期预测模型SL菌落对3 ℃贮藏的猕猴桃片货架期的预测值与实测值的相对误差分别为4.03%,3.41%,2.4%,2.8%,预测效果好。模型可用于预测0~25 ℃贮藏的鲜切猕猴桃片的货架期。

    Abstract:

    The effect of storage temperature on the quality indexes and total number of colonies of fresh-cut kiwifruit slices treated with low-temperature plasma were studied,and the shelf life prediction models of quality indexes and total number of colonies were established.The fresh-cut kiwifruit slices treated with low-temperature plasma were stored at 0,5,10,15,20,25 ℃,and the VC content,chlorophyll content,total phenol content,total colony count,brittleness,color aberrations and solid-acid ratio were measured regularly.The effect of different temperatures on the quality indexes and the total number of colonies were explored.The fitting equations of monitoring indexes were determined.The shelf life prediction models of the quality indexes and the total number of colonies of fresh-cut kiwifruit slices were established by combining the Arrhenius model and the Belehradck model.The results show that the storage temperature has no significant effect on the solid-acid ratio,total phenol content and chlorophyll content,while the storage temperature has significant effect on color aberration,brittleness,VC content and total colony count.The changes of VC content,brittleness,color aberration and total colony count of fresh-cut kiwifruit slices treated with low-temperature plasma follow the first-order reaction,first-order reaction,zero-order reaction and Logistics equation models respectively during storage.The shelf life prediction models (SLbrittleness,SLcolor aberration,SLVC,SLcolony) of fresh-cut kiwifruit slices quality index and total bacterial colonies was effective.The relative errors of the shelf life prediction models were 4.03%,3.41%,2.4% and 2.8% respectively under the storage condition of 3 ℃.The models can be used to predict the shelf life of fresh-cut kiwifruit slices treated with low-temperature plasma under 0-25 ℃ storage conditions.

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陈月圆,赵武奇,贾梦科,高贵田,张清安,孟永宏.低温等离子体处理的鲜切猕猴桃片货架期预测模型[J].中国食品学报,2022,22(1):179-188

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  • 收稿日期:2021-01-17
  • 在线发布日期: 2022-02-11
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