食品科学 ›› 2013, Vol. 34 ›› Issue (22): 311-314.doi: 10.7506/spkx1002-6630-201322063

• 包装贮运 • 上一篇    下一篇

微真空贮藏压力对平菇保鲜效果的影响

王士奎,王丽娇,李文香,张圣杰,孙树杰   

  1. 青岛农业大学食品科学与工程学院,青岛市现代农业质量与安全工程重点实验室,山东 青岛 266109
  • 收稿日期:2012-12-02 修回日期:2013-10-28 出版日期:2013-11-25 发布日期:2013-12-05
  • 通讯作者: 肖红梅 E-mail:xhm@njau.edu.cn

Effect of Different Microvacuum Pressures on Quality Preservation of Pleurotus ostreatus

WANG Shi-kui,WANG Li-jiao,LI Wen-xiang,ZHANG Sheng-jie,SUN Shu-jie   

  1. Key Laboratory of Modern Agricultural Quality and Safety Engineering of Qingdao, College of Food Science and Engineering,Qingdao Agricultural University, Qingdao 266109, China
  • Received:2012-12-02 Revised:2013-10-28 Online:2013-11-25 Published:2013-12-05

摘要:

为探讨不同微真空贮藏压力条件对平菇保鲜效果的影响,以自发气调(MAP)贮藏为对照组(CK),在贮藏温度(3.0±0.5)℃条件下分别探讨53.33~66.66、66.66~79.99、79.99~93.33kPa 3种压力条件对平菇子实体生理变化的影响。结果表明:与对照组(CK)相比,3种压力条件均显著抑制平菇的呼吸强度和可溶性蛋白质的降解,减缓褐变度的升高和细胞膜相对电导率的增加(P<0.05),但3种压力条件下平菇的质量损失率均高于CK组。其中,66.66~79.99kPa压力条件对平菇的保鲜效果显著优于53.33~66.66kPa和79.99~93.33kPa 2种压力条件(P<0.05)。

关键词: 微真空贮藏, 真空压力, 平菇

Abstract:

Physiological changes of fruit bodies of Pleurotus ostreatus stored at (3.0 ± 0.5) ℃ under three different microvacuum
pressures, 53.33–66.66, 66.66–79.99 kPa and 79.99–93.33 kPa were examined in comparison to control samples stored under MAP
conditions. The results showed that respiratory intensity and the decomposition of soluble proteins in Pleurotus ostreatus were
remarkably inhibited at the microvacuum pressures as compared to the control group. Moreover, a delayed increase in the degree
of browning and a significant increase in relative cell membrane conductivity were observed (P < 0.05). However, a higher weight
loss was observed during storage under these microvacuum pressures. Significantly improved preservation of Pleurotus ostreatus
was obtained under 66.66–79.99 kPa compared to 53.33–66.66 kPa and 79.99–93.33 kPa (P < 0.05).

Key words: microvacuum storage, vacuum pressure, Pleurotus ostreatus

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