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Cold shock treatment extends shelf life of naturally ripened or ethylene-ripened avocado fruits

文献类型: 外文期刊

作者: Chen, Jiao 1 ; Liu, Xixia 2 ; Li, Fenfang 1 ; Li, Yixing 1 ; Yuan, Debao 1 ;

作者机构: 1.Chinese Acad Trop Agr Sci, Hainan Key Lab Banana Genet Improvement, Haikou Expt Stn, Haikou, Hainan, Peoples R China

2.Hubei Normal Univ, Hubei Key Lab Edible Wild Plants Conservat & Util, Huangshi, Peoples R China

期刊名称:PLOS ONE ( 影响因子:3.24; 五年影响因子:3.788 )

ISSN: 1932-6203

年卷期: 2017 年 12 卷 12 期

页码:

收录情况: SCI

摘要: Avocado is an important tropical fruit with high commercial value, but has a relatively short storage life. In this study, the effects of cold shock treatment (CST) on shelf life of naturally ripened and ethylene-ripened avocado fruits were investigated. Fruits were immersed in ice water for 30 min, then subjected to natural or ethylene-induced ripening. Fruit color; firmness; respiration rate; ethylene production; and the activities of polygalacturonase (PG), pectin methylesterase (PME), and endo-beta-1,4-glucanase were measured. Immersion in ice water for 30 min effectively delayed ripening-associated processes, including peel discoloration, pulp softening, respiration rate, and ethylene production during shelf life. The delay in fruit softening by CST was associated with decreased PG and endo-beta-1,4-glucanase activities, but not PME activity. This method could potentially be a useful postharvest technology to extend shelf life of avocado fruits.

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