Premium
Effect of 1‐Methylcyclopropene on Chilling Injury and Quality of Peach Fruit during Cold Storage
Author(s) -
Jin Peng,
Shang Haitao,
Chen Jingjing,
Zhu Hong,
Zhao Yingying,
Zheng Yonghua
Publication year - 2011
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1750-3841.2011.02349.x
Subject(s) - chemistry , 1 methylcyclopropene , pectinase , polyphenol oxidase , antioxidant , malondialdehyde , cold storage , food science , hydrogen peroxide , peroxidase , horticulture , prunus , enzyme , biochemistry , biology , ethylene , catalysis
The effects of different concentrations (0, 0.1, 0.5, 1, and 5 μL/L) of 1‐methylcyclopropene (1‐MCP) on chilling injury (CI), fruit quality, and antioxidant enzyme activities in cold‐stored peach fruit ( Prunus persica Batsch cv Baifeng) were investigated. The results showed that treatment with 0.5 μL/L 1‐MCP significantly alleviated CI symptoms, including internal browing (IB) and flesh mealiness (FM), and maintained higher fruit quality. In addition, 1‐MCP inhibited the activities of polyphenol oxidase (PPO) and peroxidase (POD), maintained higher activities of antioxidant enzymes and kept the balance of the polygalacturonase (PG)/pectinmethylesterase (PME) ratio. The treatment of 1‐MCP markedly inhibited the increase of electrolyte leakage and the accumulation of malondialdehyde and hydrogen peroxide. Thus, 1‐MCP (0.5 μL/L) treatment is effective in preventing CI and maintaining overall quality in peach fruit. The effect of 1‐MCP on alleviating CI may be due to its capability to enhance antioxidant enzyme activities and to reduce oxidative damage. Practical Application: Treatment with 0.5 μL/L 1‐MCP significantly prevented chilling injury and maintained fruit quality in “Baifeng” peaches. In addition, 1‐MCP could enhance antioxidant enzyme activities and alleviate oxidative damage. Thus, 1‐MCP has the potential for application in the Asiatic peach industry.