新疆农业科学2024，Vol.61Issue(12)：2966-2975,10.DOI:10.6048/j.issn.1001-4330.2024.12.011
核桃青皮多酚调控对哈密瓜采后活性氧代谢水平及腐烂率的影响
Effects of regulation of walnut green peel polyphenols on postharvest active oxygen metabolism and reduction of rotten in Hami melon
摘要
Abstract
[Objective]To study the effect of walnut green peel polyphenols on reactive oxygen species metabolism(ROS)and decay of Hami melon fruit during storage.[Methods]30 mg/L walnut green skin polyphenols(obtained from preliminary experiments)were used to treat Hami melon fruit.0.5 mL/L Tween-20 was added to both treatments,soaked for 20 minutes,and stored at room temperature(temperature:(22±2)℃,relative humidity:(20±2)％)for 18 days to measure the decay index,decay rate,cell membrane permeability,malondialdehyde(MDA)content,superoxide anion(O2-)production rate,hydrogen peroxide content(H2O2),and enzyme activity related to reactive oxygen metabolism of Hami melon fruit every 3 days.[Results]Superoxide dismutase(SOD)(except 6 d),catalase(except 3d),ascorbic acid peroxidase(APX)(except 6 d)and glutathione reductase(GR)were enhanced by 30 mg/L walnut green skin polyphe-nol treatment.Meanwhile,glutathione(GSH)content was increased,H2O2 content and O2-production rate were decreased,and the increase of cell membrane permeability and malondialdehyde(MDA)content could be effectively delayed,the decay index and decay rate of hami melon(P＜0.05)were significantly reduced,and the decay symptom of Hami melon fruit was alleviated.[Conclusion]Walnut green skin polyphenols have a regulatory effect on reactive oxygen species metabolism during post harvest storage,thereby achieving the goal of delaying fruit aging and decay after harvest.关键词
哈密瓜/核桃青皮多酚/采后/活性氧代谢/腐烂率Key words
Hami melon/walnut green peel polyphenols/post harvest/reactive oxygen metabolism/rot-ten rate分类
农业科技引用本文复制引用
李慧,毕莹,王新宇,雷雅馨,张琪,黄帅,热扎·库忘德克,王静..核桃青皮多酚调控对哈密瓜采后活性氧代谢水平及腐烂率的影响[J].新疆农业科学,2024,61(12):2966-2975,10.基金项目
中央林业财政林草科技推广示范项目(新[2022]TG11号) （新[2022]TG11号）
国家自然科学基金地区基金项目(32260613) （32260613）
新疆维吾尔自治区自然科学基金面上项目(2022D01A80) Demonstration Project of Forest and Grass Science and Technology Promotion of the Central Forestry Finance(Xin[2022]TG1 1) （2022D01A80）
Project of National Natural Science Foundation of China(32260613) （32260613）
General Project of Natural Science Foundation of Xinjiang Uy-ghur Autonomous Region(2022D01A80) （2022D01A80）
