| 聚乙烯醇柠檬酸改性薄膜对鲜切苹果保鲜性能的影响 |
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| 引用本文： | 张燕,杨福馨,蒋硕,杨辉,欧丽娟.聚乙烯醇柠檬酸改性薄膜对鲜切苹果保鲜性能的影响[J].包装工程,2014,35(9):32-35. |
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| 作者姓名： | 张燕 杨福馨 蒋硕 杨辉 欧丽娟 |
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| 作者单位： | 上海海洋大学, 上海 201306;上海海洋大学, 上海 201306;上海海洋大学, 上海 201306;上海海洋大学, 上海 201306;上海海洋大学, 上海 201306 |
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| 基金项目： | 国家高技术研究发展 863 计划基金资助(2012AA0992301) |
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| 摘 要： | 目的研究聚乙烯醇柠檬酸改性薄膜对鲜切苹果保鲜性能的影响。方法以市售红富士苹果为材料,进行鲜切处理,分别采用不同浓度柠檬酸改性的聚乙烯醇薄膜密封包装。以不含柠檬酸的聚乙烯薄膜包装为对照,在室温下贮藏6 d,研究添加柠檬酸的聚乙烯醇薄膜对鲜切苹果保鲜效果各指标的影响。结果贮藏到第6天时,C处理组的各项指标均优于对照组和其他处理组,可较好地保持果实硬度,对维持果实可溶性固形物含量、维生素C及感官评定有明显作用。结论质量分数为2%的柠檬酸改性的薄膜具有较好的保鲜效果。
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| 关 键 词： | 柠檬酸 聚乙烯醇 鲜切苹果 保鲜 |
| 收稿时间： | 3/6/2014 12:00:00 AM |
| 修稿时间： | 5/1/2014 12:00:00 AM |
Preservation Effects of Citric Acid Modified Polyvinyl Alcohol Film on Fresh-cut Apples |
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| ZHANG Yan,YANG Fu-xin,JIANG Shuo,YANG Hui and OU Li-juan.Preservation Effects of Citric Acid Modified Polyvinyl Alcohol Film on Fresh-cut Apples[J].Packaging Engineering,2014,35(9):32-35. |
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| Authors: | ZHANG Yan YANG Fu-xin JIANG Shuo YANG Hui and OU Li-juan |
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| Affiliation: | Shanghai Ocean University, Shanghai 201306, China;Shanghai Ocean University, Shanghai 201306, China;Shanghai Ocean University, Shanghai 201306, China;Shanghai Ocean University, Shanghai 201306, China;Shanghai Ocean University, Shanghai 201306, China |
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| Abstract: | Objective To study the preservation effects of citric acid modified polyvinyl alcohol film on fresh-cut apples. Methods Fuji apples obtained from the market were subjected to fresh-cut processing and then sealed with polyvinyl alcohol films modified using different concentrations of citric acid, and the citric acid-free polyethylene film packaging was chosen as control. The freshness index of packaged apples was determined everyday during the storage period of 6 days. Results Compared with the other treatment groups, treatment group C was better in all indexes after stored for 6 days. It could maintain higher fruit firmness and showed better results in contents of soluble solids and vitamin C, as well as the sensory evaluation.Conclusion The experiment results showed that the film modified with 2% citric acid had good preservation effects. |
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| Keywords: | citric acid polyvinyl alcohol fresh-cut apples preservation |
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