Improving postharvest quality of mango 'Haden' by UV-C treatment

被引：143

作者：

Gonzalez-Aguilar, G. A. ^{[1
]}

Zavaleta-Gatica, R. ^{[1
]}

Tiznado-Hernandez, M. E. ^{[1
]}

机构：

[1] Ctr Invest Alimentac & Desarrollo AC, Direcc Tecnol Alimentos Origen Vegetal, Hermosillo 83000, Sonora, Mexico

来源：

POSTHARVEST BIOLOGY AND TECHNOLOGY | 2007年 / 45卷 / 01期

关键词：

Mangifera indica; UV-C treatment; quality; decay; lipoxygenase; phenylalanine ammonia-lyase; phenols; flavonoids;

D O I：

10.1016/j.postharvbio.2007.01.012

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

It is well known that UV-C irradiation increases the shelf life of different fruits. However, the biochemical changes associated with these responses are not well understood in tropical fruits. The objective of this work was to study the effects of UV-C treatment on the biochemistry and quality of mango fruit. Mangos cv 'Haden' were exposed to UV-C irradiation energy levels of 2.46 and 4.93 kJ m(-2) and then stored for 18 days at 25 degrees C. Total phenols (TP), total flavonoids (TF), enzymatic activity of phenylalanine ammonia-lyase (PAL) and lipoxygenase (LOX) were measured at 0, 0.5, 1, 8, 16, and 24 h and thereafter every 3 days. Decay and overall appearance (OA) were evaluated every 2 days with a hedonic scale. UV-C treatment maintained better OA, lower decay percentage and increased shelf life of fruit. These benefits correlated possitively with higher levels of TP, TF, LOX and PAL. We conclude that UV-C treatment can be a good alternative to increase the shelf life in optimal conditions of mango 'Haden'. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：108 / 116

页数：9

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