苹果(黄元帅)贮藏过程中品质变化与介电特性及力学特性的相关性  

Relationship between apple qulity and dielectric property and mechanical property during storage

作　　者：李海峰[1] 张燕[1] 贺晓光[1] 张海红[1] 

机构地区：[1]宁夏大学农学院食品科学系,宁夏银川750021

出　　处：《江苏农业学报》2015年第4期910-914,共5页Jiangsu Journal of Agricultural Sciences

摘　　要：为了研究苹果(黄元帅)在贮藏过程中品质与介电常数及力学特性之间的相关性,试验首先对不同贮藏条件(常温、4℃)的苹果水分和糖度进行了检测,同时使用LCR测量仪和TA-XT plus质构仪,对苹果进行介电检测和压缩-穿刺试验。结果表明:苹果的复阻抗与水分含量、糖度的决定系数分别达到0.911 1和0.959 3,苹果果皮强度与水分含量、糖度的决定系数分别达到0.901 6和0.927 3,均有显著相关性。To discuss the effects of apple quality changes on the dielectric and mechanical property, the correlations between apple quality parameters and dielectric and mechanical parameters were studied by detection of water and sugar contents stored at room temperature and 4℃ and dielectric and mechanical measurement. Results showed that the determi-nation coefficients between complex impedance and water content, and between complex impedance and sugar content were 0. 911 1 and 0. 959 3, respectively. The determination coefficients between peel strength and water content and between peel strength and sugar content were 0. 901 6 and 0. 927 3, respectively. It was indicated that the apple quality was posi-tively correlated with dielectic and mechanical properties.

关 键 词：介电常数 力学品质 果品贮藏 

分 类 号：S661.1[农业科学—果树学]