食品科学 ›› 2011, Vol. 32 ›› Issue (20): 271-276.doi: 10.7506/spkx1002-6630-201120057

• 包装贮运 • 上一篇    下一篇

海藻酸钠和溶菌酶复合涂膜对马陆葡萄贮藏保鲜效果

胡晓亮,周国燕   

  1. 上海理工大学食品与低温生物技术研究所
  • 出版日期:2011-10-25 发布日期:2011-10-12
  • 基金资助:
    国家自然科学基金青年基金项目(50206013);上海市教委科研创新项目(09YZ230)

Fresh-keeping Effect of Compound Sodium Alginate-Lysozyme Coating on Malu Grapes

HU Xiao-liang,ZHOU Guo-yan   

  1. (Institute of Cryomedicine and Food Refrigeration, University of Shanghai for Science and Technology, Shanghai 200093, China)
  • Online:2011-10-25 Published:2011-10-12

摘要: 以海藻酸钠和溶菌酶为保鲜剂对马陆葡萄进行复合涂膜保鲜,研究不同浓度的海藻酸钠溶液对马陆葡萄贮藏保鲜效果的影响,分析比较各处理组对葡萄果实的感官品质、腐烂指数、质量损失率、硬度、呼吸强度、VC含量、可溶性固形物含量以及超氧化物歧化酶(superoxide dismutase,SOD)酶活性等生理生化指标的变化。结果表明:1%海藻酸钠和0.1%溶菌酶处理后的马陆葡萄,感官效果最好,在(4±1)℃条件贮藏25d后,果实的腐烂指数为0.17,质量损失率仅为9.34%,VC含量为3.2mg/100g,可溶性固形物含量为12.1%,呼吸强度显著低于其他处理组,保鲜效果最佳。

关键词: 海藻酸钠, 溶菌酶, 保鲜, 葡萄

Abstract: Malu grapes were coated with distillated water and 0.1% lysozyme solution alone or mixed solutions containing different concentrations of sodium alginate and 0.1% lysozyme, respectively and then stored at (4 ± 1) ℃. The effects of alginate concentration on sensory quality, decay index, weight loss, hardness, respiration intensity, VC content, soluble solids content and SOD activity of Malu grapes were analyzed during the storage. Malu grapes treated with 1% sodium alginate-0.1% lysozyme showed the best sensory quality. After 25 days, the decay index, weight loss rate, VC content and soluble solids content were 0.17, 9.34%, 3.2 mg/100 g and 12.1%, respectively, and the respiration intensity was significantly lower than those of other treatment groups, suggesting the best fresh-keeping effect of 1% sodium alginate-0.1% lysozyme treatment.

Key words: sodium alginate, lysozyme, preservation, grapes

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