生物蛋白硒對‘薩米脫’櫻桃果實抗氧化能力及其品質的影響

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Abstract：Toexplore theimpactoforganic seleniumfertilizersprayon theantioxidantcapacityandfoodqualityof sweet cheries，"Samituo"cherryfruitsareselected for experimentation.Thestudy employs arandomized block design where cherry trees are treated with a biological protein selenium fertilizer at varying concentrations （ 0mg/L ， 10mg/L 30mg/L and 50mg/L ）during the pre-color change and colortransformation stagesof the fruit.This research assesses the selenium content in fruits andleaves，antioxidantenzyme activities，freradical scavengingabilities，andoverallfruitqualityn fruits post-treatment.Theresultsshowthattheseleniumcontentinboth thecherrfruitsandleaves increasedas theconcentration ofappliedseleniumfertilizerisraised.Foliar aplicationofseleniumenhances theactivityofantioxidant enzymes in the fruits，improves the free radical scavenging rate，and also increases the levels of Ca2+ and vitamin C within the fruits. Notably，the 30mg/L selenium treatment exhibits the most significant effects，markedly improving the activities of glutathione peroxidase （GSH- .Px ），thioredoxin reductase （TrxR），and the total antioxidant capacity （T-AOC） in the fruits comparedto the control group（ （0mg/L ）.Correlation analysis demonstrates a significant positive relationship between the seleniumlevels inthecherryfruitsandseveralantioxidantparameters，including glutathione S-transferase （GST）andTrxR activities，superoxide anion radical （O2?-） scavenging ability， and total antioxidant capacity （T-AOC）.This study provides a scientific foundation and theoretical guidance for cultivating selenium-enriched sweet cherries.

Keywords：Sweet cherry；biological proteinselenium；selenium content；antioxidant enzymeactivity；freeradical scavenging rate; quality

大櫻桃因其酸甜可口、口感多汁而廣受歡迎。（剩余16175字）