Effect of 1-Methylcyclopropene Treatment on Respiration Rate and Reactive Oxygen Species Metabolism during Postharvest Storage of ‘Younai’ Plum Fruit

doi:10.7506/spkx1002-6630-20200302-031

FOOD SCIENCE ›› 2020, Vol. 41 ›› Issue (23): 205-211.doi: 10.7506/spkx1002-6630-20200302-031

• Packaging & Storage • Previous Articles Next Articles

Effect of 1-Methylcyclopropene Treatment on Respiration Rate and Reactive Oxygen Species Metabolism during Postharvest Storage of ‘Younai’ Plum Fruit

LIN Jingying, LI Hui, YUAN Fang, LIN Yuzhao, LIN Hetong

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

Online:2020-12-15 Published:2020-12-28

Abstract

Abstract: The effect of 1-methylcyclopropene (1-MCP) treatment on respiration rate and reactive oxygen species (ROS) metabolism during postharvest storage of ‘Younai’ plum (Prunus salicina Lindl. cv. Younai) fruit was investigated in the present study. Freshly harvested fruit were treated with 1.2 μL/L 1-MCP, and then stored at (25 ± 1)℃. The results showed that compared with the untreated control, 1-MCP treatment effectively reduced respiration rate, the production rate of superoxide anion radical (O2-·), and the content of malondialdehyde (MDA, a product of membrane lipid peroxidation), and maintained higher activities of ROS scavenging enzymes including superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX), and higher contents of endogenous antioxidant substances such as total phenols, ascorbic acid (AsA) and glutathione (GSH) in ‘Younai’ plums during postharvest storage. Therefore, 1.2 μL/L 1-MCP treatment could effectively reduce fruit respiration rate, increase ROS scavenging capacity, reduce ROS accumulation and suppress membrane lipid peroxidation, consequently improving the storability and extending the storage period of harvested ‘Younai’ plum fruit.

Key words: ‘Younai’ plum (Prunus salicina Lindl. cv. Younai) fruit; 1-methylcyclopropene; respiration rate; metabolism of reactive oxygen species; storability

CLC Number:

TS255.36

LIN Jingying, LI Hui, YUAN Fang, LIN Yuzhao, LIN Hetong. Effect of 1-Methylcyclopropene Treatment on Respiration Rate and Reactive Oxygen Species Metabolism during Postharvest Storage of ‘Younai’ Plum Fruit[J]. FOOD SCIENCE, 2020, 41(23): 205-211.

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Effect of 1-Methylcyclopropene Treatment on Respiration Rate and Reactive Oxygen Species Metabolism during Postharvest Storage of ‘Younai’ Plum Fruit

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