| 马铃薯变性淀粉基涂膜对早酥梨的保鲜效果 |
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| 引用本文： | 刘瑾瑾,李永才,毕 阳,王 毅,胡林刚,李渐鹏.马铃薯变性淀粉基涂膜对早酥梨的保鲜效果[J].食品科学,2015,36(16):278-283. |
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| 作者姓名： | 刘瑾瑾 李永才 毕 阳 王 毅 胡林刚 李渐鹏 |
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| 作者单位： | 1.甘肃农业大学食品科学与工程学院，甘肃 兰州 730070；;
2.柳州师范高等专科学校化学与生命科学系，广西 柳州 546100 |
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| 基金项目： | 甘肃农业大学青年导师基金项目（GAU-QNDS-201208）；“十二五”国家科技支撑计划项目（2013BAD19B01） |
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| 摘 要： | 为探讨马铃薯变性淀粉在采后早酥梨涂膜保鲜中的应用效果,以马铃薯变性淀粉为主剂,通过正交试验,优化筛选马铃薯变性淀粉基保鲜膜最佳配方,分析比较最佳涂膜处理对早酥梨常温及低温贮藏期间品质指标变化的影响。结果表明,最佳的保鲜膜配方为4.00%氧化醋酸酯淀粉、0.50%单甘酯、1.00%β-环糊精、2.00%甘油和0.50%棕榈酸。涂膜处理显著地降低了常温和低温贮藏期间早酥梨质量损失率、腐烂指数以及黄化指数,抑制了果实中叶绿素含量的下降,同时涂膜处理有效地抑制了果实在贮藏期间还原糖、有机酸含量的下降,涂膜处理还可有效地封闭皮孔。可见马铃薯变性淀粉基保鲜膜在果蔬采后防腐保鲜中具有潜在的应用前景。
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| 关 键 词： | 马铃薯变性淀粉 涂膜处理 早酥梨 贮藏特性 |
Effect of Modified Potato Starch-Based Coating on Quality Preservation of "Zaosu" Pear |
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| LIU Jinjin,LI Yongcai,BI Yang,WANG Yi,HU Lingang,LI Jianpeng.Effect of Modified Potato Starch-Based Coating on Quality Preservation of "Zaosu" Pear[J].Food Science,2015,36(16):278-283. |
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| Authors: | LIU Jinjin LI Yongcai BI Yang WANG Yi HU Lingang LI Jianpeng |
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| Affiliation: | 1. College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China;
2. Department of Chemistry and Life Science, Liuzhou Teachers College, Liuzhou 546100, China |
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| Abstract: | This study aimed to examine the preservative effect of modified potato starch-based coating on postharvest “Zaosu”
pears. The optimum formulation of potato modified starch-based coating composed of 4.00 % oxidized starch acetate, 0.50%
stearic acid glycerides, 1.00% β-cyclodextrin, 2.00% glycerol and 0.50% palmitic acid was screened by orthogonal array
design. The coating significantly reduced the weight loss rate, decay rate and yellowing index of “Zaosu” pear during the
storage period, inhibited the decline of chlorophyll content, and also effectively slowed down the decreases in sugar and
organic acid contents in addition to sealing lenticels. These findings suggested that potato modified starch-based coating
might have a potential prospect in preserving postharvest fruit and vegetables. |
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| Keywords: | potato modified starch coating treatment “Zaosu&rdquo pear storage characteristics |
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