采前喷施胺鲜酯对采后龙眼果实贮藏期间果皮能量代谢的影响

doi:10.7506/spkx1002-6630-20201210-109

食品科学 ›› 2022, Vol. 43 ›› Issue (5): 175-184.doi: 10.7506/spkx1002-6630-20201210-109

采前喷施胺鲜酯对采后龙眼果实贮藏期间果皮能量代谢的影响

林毅雄，林艺芬，陈艺晖，王慧，林河通

（1.闽南师范大学生物科学与技术学院，福建漳州 363000；2.福建农林大学食品科学学院，福建福州 350002；3.亚热带特色农产品采后生物学（福建农林大学）福建省高校重点实验室，福建福州 350002；4.福建农林大学农产品产后技术研究所，福建福州 350002）

发布日期:2022-03-28
基金资助:
国家自然科学基金面上项目（30671464；30972070；31171776）；福建省自然科学基金项目（2015J01608）；闽南师范大学博士科研启动项目（L22042）

Effect of Pre-harvest Spray Application of Diethyl Aminoethyl Hexanoate on the Energy Metabolism in Longan Fruit Pericarp during Postharvest Storage

LIN Yixiong, LIN Yifen, CHEN Yihui, WANG Hui, LIN Hetong

(1. School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China;2. College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; 3. Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products (Fujian Agriculture and Forestry University), Fujian Province University, Fuzhou 350002, China; 4. Institute of Postharvest Technology of Agricultural Products, Fujian Agriculture and Forestry University, Fuzhou 350002, China)

Published:2022-03-28

摘要/Abstract

摘要： 本实验研究采前喷施含量为10 mg/kg的胺鲜酯（diethyl aminoethyl hexanoate，DA-6）对采后‘福眼’龙眼果实（Dimocarpus longan Lour. cv. Fuyan）贮藏期间果皮能量代谢的影响。贮藏期间取样测定龙眼果实的果皮腺苷三磷酸（adenosine triphosphate，ATP）含量、腺苷二磷酸（adenosine diphosphate，ADP）含量、腺苷一磷酸（adenosine monophosphate，AMP）含量、能荷、腺苷三磷酸酶（adenosine triphosphatase，ATPase）活力、烟酰胺腺嘌呤二核苷酸激酶（nicotinamide adenine dinucleotide kinase，NADK）活力以及烟酰胺腺嘌呤二核苷酸（nicotinamide adenine dinucleotide，NAD）、还原型烟酰胺腺嘌呤二核苷酸（reduced nicotinamide adenine dinucleotide，NADH）、氧化型烟酰胺腺嘌呤二核苷酸磷酸（oxidized nicotinamide adenine dinucleotide phosphate，NADP）和还原型烟酰胺腺嘌呤二核苷酸磷酸（reduced nicotinamide adenine dinucleotide phosphate，NADPH）含量。结果发现：与对照组龙眼果实比较，采前喷施DA-6可保持采后龙眼果实较高的果皮ATP、ADP含量和能荷，较高的果皮质膜、液泡膜和线粒体膜H＋-ATPase、Ca2＋-ATPase和Mg2＋-ATPase活力，较高的果皮NADK活力和NADP（H）含量，较低的果皮AMP和NAD（H）含量。据此认为，采前喷施DA-6可以保持采后龙眼果实正常生理代谢所需的能量水平，维持细胞内外离子浓度的平衡，保持质膜、液泡膜、线粒体膜的结构和功能完整性，从而延缓龙眼果实果皮褐变的发生。

关键词: 龙眼果实；胺鲜酯；能量代谢；果皮褐变；耐贮性

Abstract: The effect of pre-harvest spray application of diethyl aminoethyl hexanoate (DA-6) at a concentration of 10 mg/kg on the energy metabolism in the fruit pericarp of postharvest ‘Fuyan’ longan (Dimocarpus longan Lour. cv. Fuyan) during storage was investigated by measuring the contents of adenosine triphosphate (ATP), adenosine diphosphate (ADP), adenosine monophosphate (AMP), energy charge, the activities of adenosine triphosphatase (ATPase) and nicotinamide adenine dinucleotide kinase (NADK), and the contents of nicotinamide adenine dinucleotide (NAD), reduced nicotinamide adenine dinucleotide (NADH), oxidized nicotinamide adenine dinucleotide phosphate (NADP) and reduced nicotinamide adenine dinucleotide phosphate (NADPH). The results demonstrated that compared with the control group, pre-harvest spray application of DA-6 displayed higher levels of ATP, ADP and energy charge, higher activities of H+-ATPase, Ca2+-ATPase and Mg2+-ATPase in pericarp plasma membrane, vacuolar membrane and mitochondrial membrane, higher activity of NADK, higher contents of NADPH and NADP, and lower amounts of AMP, NADH and NAD. These data indicated that pre-harvest spray application of DA-6 could maintain the energy requirement for normal physiological metabolism of postharvest longan fruit, keep the balance between intracellular and extracellular ion concentrations to maintain the structural integrity and the function of plasma membrane, vacuolar membrane and mitochondrial membrane, and eventually delay pericarp browning of longan fruit.

Key words: longan fruit; diethyl aminoethyl hexanoate; energy metabolism; pericarp browning; storability

中图分类号:

TS255.36

林毅雄，林艺芬，陈艺晖，王慧，林河通. 采前喷施胺鲜酯对采后龙眼果实贮藏期间果皮能量代谢的影响[J]. 食品科学, 2022, 43(5): 175-184.

LIN Yixiong, LIN Yifen, CHEN Yihui, WANG Hui, LIN Hetong. Effect of Pre-harvest Spray Application of Diethyl Aminoethyl Hexanoate on the Energy Metabolism in Longan Fruit Pericarp during Postharvest Storage[J]. FOOD SCIENCE, 2022, 43(5): 175-184.

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采前喷施胺鲜酯对采后龙眼果实贮藏期间果皮能量代谢的影响

Effect of Pre-harvest Spray Application of Diethyl Aminoethyl Hexanoate on the Energy Metabolism in Longan Fruit Pericarp during Postharvest Storage

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