Texture Changes and Regulation of Postharvest Loquat Fruit

ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (4): 731-736.

• 研究论文 • Previous Articles Next Articles

Texture Changes and Regulation of Postharvest Loquat Fruit

Cai Chong, Gong Mingjin, Li Xian, Lü Junliang, and Chen Kunsong^*

(Laboratory of Fruit Molecular Physiology and Biotechnology, Zhejiang University, the Ministry of Agricultureps Laboratory of Horticultural Plant Growth, Development and Biotechnology, Hangzhou, Zhejiang 310029, China)

Received:2005-08-01 Revised:2005-09-26 Online:2006-08-25 Published:2006-08-25

Abstract

Abstract: Effects of 1-MCP and temperature treatment on texture changes of postharvest loquat fruit were investigated in the present study. During the 20℃ postharvest storage of loquat fruit, changes of LOX activities, PAL activities and O·2 accumulation showed peak-trend, tissue electric conductivity and fruit firmness increased steadily, and fresh juice percentage decreased. The changes of fruit firmness and fresh juice percentage were the characteristics of tissue lignification. Application of 1-MCP significantly inhibited PAL and LOX activities, reduced O·2 production, delayed the fruit senescence process and the increase in firmness. 1℃ temperature storage effectively retarded fruit senescence, but it induced fruit chilling injury, which also resulted in tissue lignification. The increase in firmness during postharvest loquat fruit senescence showed similar characteristic to tissue lignification of chilling injury, however, the mechanism might be different.

Key words: Loquat, Fruit, Postharvest, Texture, Senescence, Chilling injury

Cai Chong;Gong Mingjin;Li Xian;Lü Junliang;and Chen Kunsong. Texture Changes and Regulation of Postharvest Loquat Fruit[J]. ACTA HORTICULTURAE SINICA, 2006, 33(4): 731-736.

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Texture Changes and Regulation of Postharvest Loquat Fruit

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