食品科学2012，Vol.33Issue(8)：171-175,5.
贮藏期内富士和粉红女士苹果品质的FT-NIR无损检测
Non-Destructive Quality Evaluation of Fuji and Pink Lady Apples by FT-NIR during Storage Period
摘要
Abstract
In order to explore the applicability of FT-NIR technique for rapid and non-destructive evaluation of apple quality in terms of titratable acidity（TA）,pH and solid soluble content（SSC）,NIR spectra in the wavelength range of 12000 to 8000 cm-1 were acquired from 40 samples including Fuji and Pink Lady apples during the storage period of 30 days.Universal mathematical models of TA,pH and SSC for both apple varieties were established using partial least square（PLS） regression.The results showed that a stable model of TA was developed in the wavelength range of 7502 to 4247 cm-1.The coefficient of correlation（R2） of calibration and root mean square error of estimation（RMSEE） were 0.9231 and 0.0263%,respectively.Meanwhile,the coefficient of correlation of prediction（R2） and the root mean square error of cross-validation（RMSECV） were 0.9071 and 0.0266%,respectively.In addition,a stable model of pH was achieved by PLS＋FD model based on NIR spectra in the wavelength range of 11995 to 4247 cm-1.The R2 of calibration and RMSEE were 0.9263 and 0.0700,respectively,and the R2 of prediction and RMSECV were 0.9113 and 0.0772,respectively.A good model of SSC was obtained by min-max normalization pretreatment in the wavelength range of 6102 to 5446 cm-1.The R2 of calibration and RMSEE were 0.9212 and 0.3570%,respectively,and the R2 of prediction and RMSECV were 0.9130 and 0.370%,respectively.The models of TA,pH and SSC were stable in evaluating the quality of Fuji and Pink Lady apples and could meet the requirements for rapid and non-destructive evaluation of fruit quality.关键词
苹果/近红外/无损检测/可滴定酸/pH值/可溶性固形物Key words
apple/near infrared spectra/non-destructive measurement/titratable acidity/pH/SSC分类
轻工纺织引用本文复制引用
李光辉,任亚梅,任小林,赵玉..贮藏期内富士和粉红女士苹果品质的FT-NIR无损检测[J].食品科学,2012,33(8):171-175,5.基金项目
国家现代苹果产业技术体系专项 （）
