食品科学2023，Vol.44Issue(23)：159-164,6.DOI:10.7506/spkx1002-6630-20221121-243
采前喷施胺鲜酯对葡萄果实贮藏期间膜脂代谢的影响
Effect of Preharvest Spraying of Diethyl Aminoethyl Hexanoate on Membrane Lipid Metabolism of Grapes during Storage
摘要
Abstract
In order to investigate the effect of preharvest spraying of diethyl aminoethyl hexanoate(DA-6)on membrane lipid metabolism in'Kyoho'grapes during postharvest storage,distilled water(control)and 50 mg/L DA-6 were used to spray grapes at the veraison stage.The grapes were harvested when they were ripe,stored at(0±1)℃ and relative humidity of 65％-70％,and evaluated for cell membrane related indicators of grape skin after 0,20,30,40,50,and 60 days.The results showed that compared with the control group,DA-6 treatment effectively inhibited the increase in the relative permeability of cell membrane during postharvest storage,maintained the activities of lipoxygense(LOX),lipase and phospolipase D(PLD),inhibited the decrease of phosphatidylcholine and phosphatidylinositol content and the increase of phosphatidyl acid content,and maintained a high relative content of unsaturated acids such as linoleic acid and linolenic acid as well as saturated fatty acids such as stearic acid,behenic acid,arachidic acid and palmitoleic acid,consequently maintaining the degree of unsaturation of fatty acids at a high level.Additionally,DA-6 treatment suppressed the expression of the LOX,Lipase,and PLD genes.In summary,preharvest spraying of 50 mg/L DA-6 can delay the senescence and prolong the storage period of'Kyoho'grapes by effectively relieving the membrane lipid metabolism during storage.关键词
'巨峰'葡萄/耐贮性/膜脂代谢/胺鲜酯Key words
'Kyoho'grape/storability/membrane lipid metabolism/diethyl aminoethyl hexanoate分类
轻工纺织引用本文复制引用
余鹏,郑方盈,余义和,姜东明,杨英军..采前喷施胺鲜酯对葡萄果实贮藏期间膜脂代谢的影响[J].食品科学,2023,44(23):159-164,6.基金项目
河南省重点研发与推广专项(202102110043) （202102110043）
河南省高校科技创新人才支持计划项目(21HASTITT035) （21HASTITT035）
洛阳市科技发展计划项目(2101102A) （2101102A）
苏北科技专项(XZ-SZ202147) （XZ-SZ202147）
