Influence of antioxidant compounds, total sugars and genetic background on the chilling injury susceptibility of a non‐melting peach (Prunus persica (L.) Batsch) progeny. (2nd June 2014)

• Record Type: Journal Article
• Authors: Abidi, Walid; Cantín, Celia M; Jiménez, Sergio; Giménez, Rosa; Moreno, María Ángeles; Gogorcena, Yolanda
• Is Part Of: Journal of the science of food and agriculture. Volume 95:Number 2(2015:Jan. 30)
• Page Start: 351
• Page End: 358
• Publication Date: 2014-06-02
• Subjects: Food -- Periodicals; Agriculture -- Periodicals; 664
• DOI: 10.1002/jsfa.6727
• Languages: English
• ISSNs: 0022-5142

Abstract

<abstract abstract-type="main" id="jsfa6727-abs-0001"> <title>Abstract</title> <sec id="jsfa6727-sec-0001" sec-type="section"> <title>BACKGROUND</title> <p id="jsfa6727-para-0001">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, <sc>l</sc>‐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.</p> </sec> <sec id="jsfa6727-sec-0002" sec-type="section"> <title>RESULTS</title> <p id="jsfa6727-para-0002">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.</p> </sec> <sec id="jsfa6727-sec-0003" sec-type="section"> <title>CONCLUSION</title> <p id="jsfa6727-para-0003">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</p> </sec> </abstract>