Influence of Chlorine Dioxide Sustained-Release Agent on the Preservation Effect on Red Globe Grapes
Using red globe grapes as the test material,this study investigated the changes in commercial indicators,fruit quality indicators,and defensive enzyme activity of red globe grapes during storage under cold storage conditions.The effects of different release concentrations of chlorine dioxide(ClO2)sustained-release agents and SO2 treatment on the preservation of red globe grapes were also explored.The results showed that the low concentration ClO2 treatment had the best effect in inhibiting the weight loss and threshing of red globe grape.But the SO2 treatment has the best maintenance of tensile resistance.The treatment of chlorine dioxide sustained-release agent had a good effect on the maintenance of fruit hardness.Among them,the low ClO2 treatment group had the best preservation effect.It could effectively maintain the commercial characteristics of grapes,It could effectively inhibit the decline of fruit pulp average hardness,titrable acid content and vitamin C content.Chlorine dioxide sustained-release agent treatment could also inhibit the increase in polyphenol oxidase(PPO),peroxidase(POD)and phenylalamine ammonia lyase(PAL)enzyme activity,they could slow down fruit senescence and browning,and they could also significantly increase chitinase and β-1,3-glucanase activity during the storage period,thereby improving the disease resistance of the fruit.According to Origin analysis,the comprehensive score was in the order of ClO2 low group,ClO2 high group,SO2 group,and CK group.This further indicated that low-concentration ClO2 sustained-release agent treatment had the best preservation effect,which was more beneficial to maintain fruit quality and improve fruit disease resistance during storage.
万方数据
维普
