文章摘要
冯丽萍,付海姣,魏丹,张敏.不同压力条件对减压罐贮藏生鲜香菇品质的影响[J].包装工程,2014,35(19):7-12,37.
FENG Li-ping,FU Hai-jiao,WEI Dan,ZHANG Min.Effect of Different Pressure on the Quality of Fresh Shiitake Mushrooms during Vacuum Tank Packaging Storage[J].Packaging Engineering,2014,35(19):7-12,37.
不同压力条件对减压罐贮藏生鲜香菇品质的影响
Effect of Different Pressure on the Quality of Fresh Shiitake Mushrooms during Vacuum Tank Packaging Storage
投稿时间:2014-05-17  修订日期:2014-10-01
DOI:
中文关键词: 香菇  减压罐  减压贮藏  压力条件
英文关键词: shiitake mushrooms  vacuum tank  hypobaric storage  pressure condition
基金项目:重庆市科技攻关应用技术研发类重点项目(cstc2012gg-yyjsB80003); 中央高校基本科研业务费专项资金(XDJK2013C130)
作者单位
冯丽萍 西南大学 重庆 400715 
付海姣 西南大学 重庆 400715 
魏丹 西南大学 重庆 400715 
张敏 西南大学 重庆 400715 
摘要点击次数:
全文下载次数:
中文摘要:
      目的 探讨在常温(20 ℃)下, 不同压力条件对香菇减压贮藏效果的影响。 方法 以常压,(80±5),(55± 5),(30± 5) kPa等不同压力处理香菇, 评定其呼吸强度、失重率、可溶性固形物含量、硬度、相对电导率和多酚氧化酶(PPO)活性等。 结果 减压贮藏能抑制贮藏初期香菇的呼吸强度( P<0.05),并将香菇的呼吸高峰延迟至第 8 天; 减压贮藏能减缓可溶性固形物含量的变化, 减少硬度的下降, 降低细胞膜的透性( P<0.05); 减压贮藏压力越低, 对香菇 PPO 活性的抑制作用越强( P<0.05), 与其他处理组相比,(30± 5) kPa 处理组在第 10天时 PPO 活性达到最低, 为 7.43 U。 结论 减压贮藏在一定程度上能导致香菇的失重率升高, 其中(55± 5) kPa减压贮藏压力下香菇的可溶性固形物含量、硬度、相对电导率等 3 个方面效果较佳。
英文摘要:
      Objective To investigate the effect of different pressure conditions on the hypobaric storage of shiitake mushrooms at 20℃ . Methods The Pressures of the packaged shiitake mushrooms were controlled at(80±5),(55±5) and (30±5) kPa, respectively, and air storage was used as control. Respiratory intensity, weight loss rate, soluble solids content, firmness, relative conductivity, and PPO activities were determined every two days. Results The results showed that hypobaric storage could significantly reduce the respiration intensity of shiitake mushrooms during early storage ( P<0.05) and delay the emergence of respiratory peak to the 8th day. What’ s more, it could effectively slow down the increase and decrease of soluble solids content, reduce the decrease of firmness and slow down the permeability of cell membrane ( P< 0.05); and the lower the storage pressure was, the lower the PPO activities of shiitake mushrooms were ( P<0.05). By comparison, the PPO activity of shiitake mushrooms under(30±5) kPa hypobaric storage pressure was 7.43 U, which was the lowest. Conclusion The hypobaric storage led to the increase of weight loss rate of shiitake mushrooms to some extent. Overall, the soluble solids content, firmness and relative conductivity of shiitake mushrooms under(55±5) kPa hypobaric storage pressure were best.
查看全文   查看/发表评论  下载PDF阅读器
关闭

关于我们 | 联系我们 | 投诉建议 | 隐私保护 | 用户协议

您是第20789017位访问者    渝ICP备15012534号-2

版权所有:《包装工程》编辑部 2014 All Rights Reserved

邮编:400039 电话:023-68795652 Email: designartj@126.com

    

渝公网安备 50010702501716号