中国塑料 ›› 2010, Vol. 24 ›› Issue (04): 80-85 .DOI: 10.19491/j.issn.1001-9278.2010.04.017

• 加工与应用 • 上一篇    下一篇

PVA复合薄膜水果保鲜研究

李阳博 吴文倩 刘哲伟 项爱民   

  1. 北京工商大学 北京工商大学 北京工商大学
  • 收稿日期:2009-11-25 修回日期:1900-01-01 出版日期:2010-04-26 发布日期:2010-04-26

Study on Fresh-keeping Poly(vinyl alcohol) Composite Film for Fruits

LI Yangbo WU Wenqian LIU Zhewei XIANG Aimin   

  • Received:2009-11-25 Revised:1900-01-01 Online:2010-04-26 Published:2010-04-26
  • Contact: XIANG Aimin

摘要: 以聚乙烯醇(PVA)复合膜作为生物保鲜膜,分别研究了草莓、香蕉在PVA膜保护下的保鲜效果,分析了PVA膜保鲜作用机理,并与聚乙烯(PE)薄膜的保鲜效果进行了对比。结果表明:PVA薄膜在水果保鲜上可以降低失重率,延缓水果衰老,降低水果的变质率,延长水果贮藏期和维持良好的贮藏质量,PVA薄膜创造了"低氧气,高二氧化碳"环境,将草莓的保鲜期延长了5 d以上,达到了很好的保鲜效果。PVA薄膜对香蕉的保鲜效果不太明显,但在其保鲜期内降低了果实的失重率。

关键词: 聚乙烯醇, 保鲜, 水果, 复合膜

Abstract: Compared with the PE film,the fresh-keeping effect of poly(vinyl alcohol) (PVA) composite film on strawberries and bananas was studied, and the fresh keeping mechanism of PVA film was analyzed. The PVA composite film could decrease weight loss of fruits, delay aging, prolong the storage life, maintain the flavor and appearance. In the environment of "low oxygen, high carbon dioxide" maintained by PVA film, the fresh-keeping period of strawberry could be extended by 5 days. Although it was not satisfactory for banana, the weight loss of banana was anyway decreased.

Key words: poly(vinyl alcohol), fresh-keeping, fruit, composite film