| 可食涂膜处理对红地球葡萄成熟衰老和果肉褐变的影响 |
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| 引用本文： | 李桂峰,刘兴华.可食涂膜处理对红地球葡萄成熟衰老和果肉褐变的影响[J].河北农业大学学报,2006,29(2):34-37. |
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| 作者姓名： | 李桂峰 刘兴华 |
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| 作者单位： | 1. 西北农林科技大学,食品科学与工程学院,陕西,杨凌,712100;山西师范大学,生物技术与工程学院,山西,临汾,041000
2. 西北农林科技大学,食品科学与工程学院,陕西,杨凌,712100 |
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| 摘 要： | 红地球葡萄采后经过整理,再用可食性膜处理,研究不同可食性膜对红地球葡萄O2-.和酶活性与衰老和褐变的影响。结果表明:可食涂膜处理可显著降低呼吸作用,抑制O2-.和MDA的生成速率,延缓细胞膜透性的变化和SOD活性的降低,抑制PPO和POD活性的升高,从而延缓果实褐变和衰老进程,并且复合膜比单一膜有更好的效果。相关分析表明,MDA、O2-.生成速率和膜透性的变化与SOD活性呈明显负相关,PPO和POD活性变化调控着酚类物质的变化。
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| 关 键 词： | 可食涂膜 红地球葡萄 褐变 衰老 |
| 文章编号： | 1000-1573（2006）02-0034-04 |
| 收稿时间： | 2005-11-19 |
| 修稿时间： | 2005-11-19 |
Effects of edible coating on browning and senescence of Red-globe grape |
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| LI Gui-feng,LIU Xing-hua.Effects of edible coating on browning and senescence of Red-globe grape[J].Journal of Agricultural University of Hebei,2006,29(2):34-37. |
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| Authors: | LI Gui-feng LIU Xing-hua |
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| Abstract: | Browning and senescence were studied on fresh Red-globe grape with edible coating after harvest.The results indicated the levels of O~-_2·,MDA contents,PPO activity,POD activity,respiratory rate and relative conductance ratio treated with edible coating were significantly lower than CK.Reducing of SOD activity and phenols compound were delayed.Browning and senescence also were inhibited by edible coating treatment.And complex coating was better than single coating.Correlation analysis revealed that O~-_2·,MDA contents and relative conductance ratio were in negative correlation with SOD activity.Moreover,increase of PPO and POD activity conduced to decrease of phenols compound. |
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| Keywords: | edible coating Red-globe grape browning senescence |
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