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投稿时间:2017-04-27
投稿时间:2017-04-27
中文摘要: 为研究精胺(spermine,SPM)处理对豇豆采后生理和保鲜效果的影响,以"华赣·露地王"豇豆为试验材料,将豇豆分别浸泡在不同浓度(0、0.1、0.2 mmol/L)的精胺中,晾干后使用厚度为0.03 mm的PE袋折口包装放置在15℃下,并测定其在贮藏期间的生理特性变化。结果表明:0.2 mmol/L精胺处理有效延缓了豇豆的衰老,减缓了感官品质、叶绿素含量、抗坏血酸(Ascorbic acid,ASA)含量的下降,抑制了豇豆的失水和多酚氧化酶(Polyphenol oxidase,PPO)的活性,保持了酚类物质的含量,同时使抗氧化系统酶的活性始终维持在较高的水平,如过氧化物酶(Peroxidase,POD)、过氧化氢酶(catalase,CAT)、抗坏血酸过氧化物酶(ascorbate peroxidase,APX)。表明适当浓度的精胺处理能够延长豇豆的货架期。
Abstract:To investigated the effect of spermine on postharvest physiology and preservation of cowpea,we choosed'Huagan Ludiwang'cowpea as the experimental material.The cowpea were soaked in different concentrations(0,0.1,0.2 mmol/L)of spermine,after dry,they were wrapped with the thickness of 0.03 mm PE bags and stored at 15℃.The changes in physiological characteristics during storage periode were measured.Results show that the spermine with 0.2 mmol/L treatment effectively delayed the aging of the cowpea,slowed the decline in sensory quality and the content of chlorophyll,ascorbic acid,and inhibited the increase on weight loss,the activity of PPO,and kept the content of phenolics.While the activity antioxidant enzymes,including POD,CAT,APX were maintained at a higher level.Further show that appropriate concentration of spermine treatment can extend the shelf life of cowpea.
keywords: spermine cowpea postharvest physiology quality
文章编号:201801032 中图分类号: 文献标志码:
基金项目:国家重点研发计划项目(2016YFD0400901);国家大宗蔬菜产业体系建设项目(CARS-23-E02);北京市农林科学院青年基金(201709);北京市农林科学院果蔬保鲜与加工创新团队项目(JNKST201602)
作者 | 单位 |
郑秋丽,王清,高丽朴,王云香,史君彦,左进华* | 北京市农林科学院蔬菜研究中心,农业部蔬菜产后处理重点实验室,果蔬农产品保鲜与加工北京市重点实验室,农业部华北地区园艺作物生物学与种质创制重点实验室,农业部都市农业(北方)重点实验室,北京 100097 |
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