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茶叶科学 ›› 2013, Vol. 33 ›› Issue (1): 67-73.doi: 10.13305/j.cnki.jts.2013.01.014

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含茶多酚的大豆分离蛋白涂膜对甜樱桃保鲜效果的影响

刘开华, 张宇航, 邢淑婕   

  1. 信阳农业高等专科学校食品科学系,河南 信阳 464000
  • 收稿日期:2012-05-28 修回日期:2012-08-31 出版日期:2013-02-28 发布日期:2019-09-04
  • 作者简介:刘开华(1969— ),男,河南固始人,副教授,主要从事食品营养与安全方面的研究,E-mail: xing3600@163.com
  • 基金资助:
    河南省2011年科技攻关计划项目(112102110144)

Effect of Tea Polyphenol-incorporated Soy Protein Isolate Film-coating on Fresh Preservation of Sweet Cherry

LIU Kai-hua, ZHANG Yu-hang, XING Shu-jie   

  1. Department of Food Science, Xinyang agricultural College, Xinyang 464000, China
  • Received:2012-05-28 Revised:2012-08-31 Online:2013-02-28 Published:2019-09-04

摘要: 将天然抑菌抗氧化物质茶多酚添加到大豆分离蛋白中制成复合涂膜液,以感官指标、硬度、腐烂指数、可溶性固形物和VC含量为质量指标定期取样分析测定,研究所制成的涂膜液在室温条件下对甜樱桃的保鲜效果。结果表明,含茶多酚的大豆分离蛋白复合涂膜液能较好地保持贮藏樱桃的感官品质,降低甜樱桃在贮藏期间的腐烂率,延缓果实硬度、VC和可溶性固形物含量的下降,从而延长果实的保鲜期。5%的大豆分离蛋白溶液中添加200βmg/kg茶多酚制得的涂膜液保鲜效果显著,和对照相比,可将甜樱桃的室温保鲜期从2βd延长至8βd。

关键词: 茶多酚, 大豆分离蛋白, 涂膜, 甜樱桃, 保鲜

Abstract: :Tea polyphenol was added to the soy protein isolate and the tea polyphenol-incorporated soy protein isolate antibacterial film-coating was made. In order to study the effect of the film-coating on fresh preservation of sweet cherry, the changes of sensory index, firmness, rotting index, soluble solid and vitamin C content of sweet cherry treated with the film-coating were studied during the storage under the room temperature. The results indicated that the film-coating could significantly reduce the rotting rate of sweet cherry to a certain extent, delay the decline of the fruit’s firmness, vitamin C and soluble solid content, inhibit the decline of sensory index and keep storage quality of sensory. It was found that film-coating made with 5% soy protein isolate blended with 200βmg/kg tea polyphenol achieved the best preservation effect on sweet cherry, which can prolong the shelf life from 2βd to 8βd as compared with the control under the room temperature.

Key words: tea polyphenols, soy protein isolate, film-coating, sweet cherry, fresh preservation

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