摘要
研究了套袋对6类品种梨果实营养成分的影响.果实成熟后分别采集套袋和未套袋果实测定主要营养成分,结果表明:套袋后,果实中可溶性糖、淀粉、可滴定酸、维生素C和矿质元素的含量均有所降低,其中鸭梨、博斯克和八月红的可溶性糖含量,雪花梨、黄金梨和博斯克的可滴定酸含量,雪花梨、大红巴和八月红的维生素C含量,雪花梨和鸭梨中K、Mg、Ca元素的含量套袋后显著降低;六类品种梨果实套袋后可溶性蛋白和氨基酸含量因品种而有不同.
The influents of bagging treatment on nutrient composition in 6 varieties of Pear Fruit was studied in this paper. After ripening, contents of main nutritional components in mature pear fruits of bagging and non-bagging of different varieties were measured. The results showed that contents of soluble sugar, starch, titrable acid, vitamin C and mineral elements decreased in bagging fruits. In addition, con- tent of soluble sugar decreased significantly in bagging fruits of Yali Pear, Beurre Bosc and Bayuehong Pear. Content of titrable acid decreased significantly in bagging fruits of Xuehua Pear, Whangkeumbae and Beurre Bosc. Content of vitamin C decreased significantly in bagging fruits of Xuehua Pear, Bartlett Max Red and Bayuehong Pear. Content of mineral elements as K, Mg and Ca decreased significantly in Xuehua Pear and Yali Pear. Changes of protein and free amino acid contents in bagging fruits were differ- ent according to pear varieties.
出处
《河北北方学院学报（自然科学版）》
2010年第4期35-37,45,共4页
Journal of Hebei North University:Natural Science Edition
关键词
梨果实
套袋
营养成分
pear fruit
bagging treatment
nutrient composition
