1摘要：本文采用‘福眼’龙眼为实验材料，通过测定米酵菌酸（BKA）及 ATP 处理对采后龙眼果实的呼吸强度、感病指数、果皮褐变指数和果肉自溶指数，研究 BKA 及 ATP 对采后龙眼果实营养品质及保鲜效果的影响。结果表明：在贮藏期间，与对照组相比，BKA 处理提高了采后龙眼果实的呼吸强度、感病指数、果皮褐变指数和果肉自溶指数；而 ATP 处理则降低采后龙眼果实的呼吸强度感病指数、果皮褐变指数和果肉自溶指数。此外，BKA 处理降低果皮色素含量及果肉营养物质含量，加强龙眼果实失水而促进果实失重率；而 ATP 处理则保持较高的果皮色素含量，及果肉营养物质含量，减轻龙眼果实失水而降低果实失重率。关键词：龙眼果实；米酵菌酸；ATP；耐贮性；营养品质Abstract：In order to study the influence of BKA(bongkrekic acid) and ATP(Adenosine Triphosphate )on the nutritional quality and fresh keeping effect of postharvest Longan fruits , we used Dimocarpus longan Lour.cv.Fuyan as experimental material.The experimental results show that compared wih the control group , BKA treatment increase the respiratory intensity 、the index of decease infection 、peel browing and aril breakdown during shortage, while ATP treatment decrease these. Furthermore, BKA treatment reduces the content of pigments and flesh nutrients and strengthens dehydration to promote the weight loss rate of fruits，however, ATP treatment is totally opposite to it.Key words：Longan fruit; BKA(bongkrekic acid) ;ATP(Adenosine Triphosphate ) ; Storage resistance ; Nutritional quality21 引言龙眼是我国的南方名特优水果之一，营养丰富，龙眼果实通常成熟于 7-9 月高温季节，采后龙眼果实容易发生果皮褐变和果实腐烂，这严重影响着采后龙眼的储藏、运输和销售。因此研究龙眼采后衰老过程的生理变化尤为重要。前人研究认为，果蔬采后病害发生可能与呼吸代谢与能量亏损有关：米酵菌酸（Bongkrekic acid,BKA）是耶毒假单胞菌产生的一种毒素，其可与 AAC 蛋白（跨膜蛋白）相结合、抑制 AAC 与底物结合，从而抑制AAC 对 ADP/ATP 的反向转运功能，促进果实 ATP 含量的减少，促进采后果...
