Effect of 1-Methylcyclopropene on Physiological Regulation of Fresh Ginger under Cold Stress

Abstract

Abstract: The purpose of the present study was explored the effect of 1-methylcyclopropene (1-MCP) fumigation at different doses on physiological and biochemical changes of fresh gingers (especially polyphenol oxidase (PPO) activity, DPPH radical scavenging activity, and total phenol, cellulose and 6-gingerol contents) during storage under low temperature (10 ℃) conditions. Treatment with 0.5μL/L 1-MCP could significantly inhibit the impact of cold stress on physiological indices of fresh gingers. Compared with control samples, PPO activity, total phenol content, and DPPH free radical scavenging activity and 6-gingerol content of 1-MCP treated samples after 28-d storage were increased by 0.35 U, 5.45 mg/100g, 5.75% and 0.97 mg/g, respectively, while cellulose content was decreased by 0.261%. These findings suggest 0.5μL/L 1-MCP treatment can be an effective approach for ginger preservation.

Key words: fresh ginger, 1-methylcyclopropene, cold stress, storage, physiology and biochemistry

CLC Number:

TS255.3

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