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Influence of antioxidant compounds, total sugars and genetic background on the chilling injury susceptibility of a non‐melting peach ( Prunus persica (L.) Batsch) progeny
Author(s) -
Abidi Walid,
Cantín Celia M,
Jiménez Sergio,
Giménez Rosa,
Moreno María Ángeles,
Gogorcena Yolanda
Publication year - 2014
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.6727
Subject(s) - browning , flesh , cultivar , ascorbic acid , postharvest , antioxidant , horticulture , organoleptic , prunus salicina , food science , biology , cold storage , prunus , flavor , population , chemistry , medicine , biochemistry , environmental health
BACKGROUND To identify genotypes with good organoleptic properties, antioxidant‐rich content and low susceptibility to chilling injury ( CI ), fruits from 130 peach cultivars were studied over three consecutive years. Pomological traits, l ‐ascorbic acid, flavonoids, total phenolics, relative antioxidant capacity ( RAC ) and sugars were determined. Major symptoms of CI developed at 5 °C, such as leatheriness, flesh browning, bleeding and loss of flavor, were evaluated. RESULTS The population exhibited wide phenotypic variation in agronomic and biochemical traits. Six genotypes with high total phenolics, RAC , flavonoids and total sugars were selected. The progeny also showed variability for all evaluated CI symptoms, and 16 genotypes showed considerably lower susceptibility to CI . After 2 weeks of cold storage, leatheriness and bleeding were the main CI symptoms observed, whereas flesh browning was predominant after 4 weeks. CONCLUSION It was possible to find varieties with high phenolic concentration and relatively low or intermediate CI susceptibility (22, 33, 68, 80, 81, 96 and 120). However, the correlations observed between CI and phenolic contents highlight their potential influence on susceptibility to internal browning. This relationship should be considered in the current breeding programs to select cultivars with high bioactive compound contents, health‐enhancing properties and good postharvest performance. © 2014 Society of Chemical Industry