| 冷激结合壳聚糖涂膜处理对黄瓜低温保鲜的效果 |
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| 引用本文： | 刁春英,高秀瑞,李婷.冷激结合壳聚糖涂膜处理对黄瓜低温保鲜的效果[J].食品工业科技,2013,34(12):296-299. |
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| 作者姓名： | 刁春英 高秀瑞 李婷 |
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| 作者单位： | 1. 河北经贸大学生物科学与工程学院,河北石家庄,050061
2. 河北省农林科学院经济作物研究所,河北石家庄,050051 |
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| 基金项目： | 国家大宗蔬菜产业技术体系石家庄综合试验项目 |
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| 摘 要： | 以0℃的冰水混合物为冷激介质,对新鲜黄瓜分别进行20、40、60min的冷激处理,然后用1.5%壳聚糖溶液进行涂膜处理,8℃条件下冷藏贮存,冷藏期间对黄瓜进行呼吸强度、可滴定酸含量、叶绿素含量、丙二醛、硬度、失重率、冷害指数等一系列指标进行测定,结果表明,冷激40min后再用1.5%壳聚糖溶液涂膜处理对黄瓜在低温条件下保鲜效果良好。
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| 关 键 词： | 黄瓜 冷激 壳聚糖涂膜 低温保鲜 |
| 收稿时间： | 2012-09-19 |
Fresh-keeping effects on cucumber in low temperature with cold shock treatment and film-coating with chitosan |
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| Abstract: | 0℃ mixture of ice and water used as cold shock medium, 1.5% chitosan solution used as the film- coating agent, the fresh-keeping effects on cucumber in low temperature were studied. The cold shock treatment was controlled for 20, 40 and 60min, then these cucumbers were put in the refrigerator at 8℃. In the storage time, the respiration intensity, contents of titration acid, chlorophyll and MDA were tested, and the hardness, weight loss, chilling injury index of the cucumber were analyzed. Results showed that the treatment of cold-shocking 40min +1.5% chitosan film had the good effects on fresh-keeping on cucumber at low temperature. |
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| Keywords: | cucumber cold shock chitosan-coating fresh-keeping at low temperature |
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