‘宫川’温州蜜柑大棚延迟采收果实品质及抗氧化能力的变化

 以大棚栽培的早熟温州蜜柑‘宫川’为试材，研究了果实发育及延迟采收过程中果实品质与抗氧化能力的变化。结果表明，延迟采收期间果皮、囊瓣皮部分占全果的比例维持一个较低水平，而汁囊所占比例相对较高。延迟采收提高了果实蔗糖、总糖、可溶性固形物、总类胡萝卜素和总黄酮的含量，并提高了果实的抗氧化能力，而可滴定酸含量则下降。但过迟采收，果皮、囊瓣皮占果实的比例上升，果皮增厚，相应地汁囊占果实的比例下降，果实的葡萄糖、果糖含量急剧下降，类胡萝卜素、总黄酮含量和抗氧化能力也略有下降。以上结果表明，延迟采收是提高果实品质的有效措施，但延迟采收期不宜迟于1月中旬，过迟则品质下降。

Changes on Fruit Quality Components and Antioxidant Capacity in Fruit of Greenhouse Delayed Harvest Satsuma Mandarin

Changes of ratios of various parts of fruit weight to the whole fruit,peel thickness,contents of total soluble solids,sugars,titratable acid,carotenoids and flavonoids,and antioxidant capacity in developing satsuma mandarin(Citrus unshiu'Miyagawa Wase')fruit were measured under greenhouse delayed harvest condition.The results showed the ratios of peel and segment epidermis to the whole fruit were at relatively low levels during periods of delayed cultivation;While the ratios of juice sacs to the whole fruit...