食品科学 ›› 2012, Vol. 33 ›› Issue (2): 262-266.doi: 10.7506/spkx1002-6630-201202058

• 包装贮运 • 上一篇    下一篇

纳米包装材料延长金针菇贮藏品质的作用

单 楠,杨 芹,杨文建,刘音宏,赵立艳,辛志宏,方 勇,胡秋辉,安辛欣   

  1. 1. 南京农业大学食品科技学院
    2.南京财经大学食品科学与工程学院
  • 出版日期:2012-01-25 发布日期:2012-01-16
  • 基金资助:
    国家现代农业产业技术体系建设专项(CARS-24)

Effect of Nano-Packing on Storage Quality of Flammulina velutipes

SHAN Nan,YANG Qin,YANG Wen-jian,LIU Yin-hong,ZHAO Li-yan,XIN Zhi-hong, FANG Yong,HU Qiu-hui,AN Xin-xin   

  1. 1. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; 2. College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210003, China
  • Online:2012-01-25 Published:2012-01-16

摘要: 通过制备一种含纳米Ag、纳米TiO2和凹凸棒土等纳米粉体的聚乙烯(PE)薄膜,用于金针菇的包装贮藏。以普通聚乙烯(PE)薄膜为对照,研究4℃低温贮藏15d期间,纳米包装材料对金针菇保鲜品质的影响。结果表明,贮藏15d后,纳米处理组的金针菇与普通聚乙烯包装处理组相比,较好地保持了贮藏前的洁白色泽,且无明显开伞、水渍状斑块及霉变现象。纳米包装金针菇的褐变度为1.56,相对电导率为6.27%,均显著低于对照(P<0.01)。而总糖、还原糖和可溶性蛋白质的保留量分别达70.9、11.34mg/g和19.54mg/g,分别高出对照组10.52%、33.53%和22.13%。纳米包装材料能够有效地减缓金针菇采后衰老和品质劣变进程,提高其综合贮藏品质,延长贮藏时间。

关键词: 金针菇, 纳米包装材料, 保鲜

Abstract: A polyethylene (PE) packing consisting of nano-Ag, nano-TiO2, and attapulgite was applied in the preservation of Flammulina velutipes. Meanwhile, the regular polyethylene (PE) packing was used as the control. Sensory quality and biochemical properties of Flammulina velutipes were analyzed. Flammulina velutipes with nano-packing stored at 4 ℃ for 15 days revealed a significant inhibition on opened mushroom parasol, browning, mold growth and decay when compared with the control. In addition, Flammulina velutipes with nano-packing had lower browning degree (1.56) and relative conductivity (6.27%) (P <0.01). Compared with the control, the contents of total sugar, reduce sugar and soluble protein of Flammulina velutipes packed by nano-packaging were 70.9, 11.34 mg/g and 19.54 mg/g, respectively, which exhibited the enhancement of 10.52%, 33.53% and 22.13%, respectively. Therefore, nano-packing had a potential to improve the preservation quality and storage time of Flammulina velutipes by reducing its aging and degradation process.

Key words: Flammulina velutipes, nano-packing, preservation

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