不同采摘期及其贮藏过程对‘泌阳瓢梨’营养成分含量的影响  

Effect of different picking dates and storage process on nutrient contents of 'Biyang Piaoli's

作　　者：李世荣[1] 王佳慧[1] 王艳梅[1] 刘震[1] 

机构地区：[1]河南农业大学林学院,河南郑州450002

出　　处：《河南农业大学学报》2013年第1期37-42,共6页Journal of Henan Agricultural University

基　　金：河南省教育厅自然科学研究计划项目(2011B220006);河南农业大学博士启动项目(30400376)

摘　　要：为了研究不同采摘期及其贮藏过程对‘泌阳瓢梨’营养成分含量的影响,以08-28,09-04,09-11采摘的‘泌阳瓢梨’为研究对象,检测了其在采摘时及贮藏过程中的硬度、含水量、可溶性固形物质含量、Vc含量、含酸量、蛋白质及总糖含量.结果表明,(1)新采摘的‘泌阳瓢梨’的果实硬度、含水量和Vc含量都为最高,随着存放时间的延长,3者均呈下降趋势,对Vc而言,越早采摘的Vc流失速度越快;(2)新摘的‘泌阳瓢梨’可溶性固形物含量存在差异,但随贮藏时间的延长总体呈下降趋势;(3)‘泌阳瓢梨’含酸量总体趋势是先下降后上升再下降,新摘时最高,且采摘的时间越早,含酸量越高;(4)‘泌阳瓢梨’蛋白质、总糖含量变化趋势为先上升后下降,采摘时间越早,蛋白质、总糖含量到达峰值的时间越滞后.In order to study the differences in nutrient compositions and changes in nutritional compositions during storage of ＇ Biyang piaoli＇ with different picking date Biyang piaoli picked on three different dates were explored. Their pulp firmness, water contents, soluble solids contents, Vc contents, the amount of acid, protein contents and contents of total sugar were tested. The results showed ： （ 1 ） The pulp firmness, water contents and Vc contents were the highest in newly picked Biyang piaoli. Along with the extension of storage time, the pulp firmness, water contents and Vc contents of ＇ Biyang piaoli＇ dropped. As for Vc contents, the earlier they were picked, the faster the Vc contents were lost; （2） The soluble solids contents were different, but showed an overall change trend of declining with the extension of storage time; （3） The change trend of the amount of acid was ＂drop-rise-drop＂. The amount of acid was the highest in newly picked ＇ Biyang piaoli＇. The earlier they were picked, the higher the acid content was; （4） The protein contents and total sugar were increased first and then decreased. The earlier they were picked, the later peak time of protein and sugar content was.

关 键 词：采摘日期 瓢梨 贮藏 营养成分 

分 类 号：S661.2[农业科学—果树学]