Prediction and Comparison of Models for Soluble Solids Content Determination in 'Ya' Pears Using Optical Properties and Diffuse Reflectance in 900-1700 nm Spectral Region

文献类型： 外文期刊

第一作者： Xia, Yu

作者： Xia, Yu;Tian, Xi;Li, Jiangbo;Fan, Shuxiang;Huang, Wenqian;Xia, Yu;Tian, Xi;Li, Jiangbo;Fan, Shuxiang;Huang, Wenqian;Xia, Yu;Tian, Xi;Li, Jiangbo;Fan, Shuxiang;Huang, Wenqian;Xia, Yu;Tian, Xi;Li, Jiangbo;Fan, Shuxiang;Huang, Wenqian;Xia, Yu

作者机构：

关键词： Pear; integrating sphere; absorption; scattering; soluble solids content

期刊名称：IEEE ACCESS （ 影响因子：3.367； 五年影响因子：3.671 ）

ISSN： 2169-3536

年卷期： 2019 年 7 卷

页码：

收录情况： SCI

摘要： The basic optical properties of fruit tissues are significant and helpful to be known when they are utilized for internal quality detection. The integrating sphere (IS) system was established to measure diffuse reflectance spectra (R') of peel-flesh layer, absorption coefficient (mu(a)) and reduced scattering coefficient (mu'(s)) of flesh layer of 'Ya' pear tissues using inverse adding-doubling (IAD) method in 900-1700 nm. Aiming at studying the relationship between soluble solids content (SSC) and optical properties (mu(a) and mu'(s)), partial least square (PLS) regression was employed to establish calibration models based on three wavelength regions. Results showed that better correlations were found using reflectance and mu(a) spectra than using scattering ones with full wavelengths in 900-1350 nm. Moreover, reflectance spectra (r(p) = 0.8911, RMSEP = 0.4965 degrees Brix) with 27 effective wavelength (EWs) and it mu(a) spectra (r(p) = 0.8641, RMSEP = 0.5506 degrees Brix) with 14 EWs both performed satisfactory results using competitive adaptive reweighted sampling (CARS). Good result (r(p) = 0.8856, RMSEP = 0.5081 degrees Brix) could also be found by the combination of reflectance and mu(a) spectra with 38 EWs. Results of independent validation test showed that EWs of it a spectra was more promising in pear SSC prediction even though the model stability was not as good as these obtained by reflectance. Therefore, more research needs to be done to improve the stability and accuracy of the IS system. This study illustrated the availability for multiple index quality attributes detection of fruit tissues by detecting reflectance and optical properties information using IS system.

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[1]Prediction and Comparison of Models for Soluble Solids Content Determination in 'Ya' Pears Using Optical Properties and Diffuse Reflectance in 900-1700 nm Spectral Region. Xia, Yu,Tian, Xi,Li, Jiangbo,Fan, Shuxiang,Huang, Wenqian,Xia, Yu,Tian, Xi,Li, Jiangbo,Fan, Shuxiang,Huang, Wenqian,Xia, Yu,Tian, Xi,Li, Jiangbo,Fan, Shuxiang,Huang, Wenqian,Xia, Yu,Tian, Xi,Li, Jiangbo,Fan, Shuxiang,Huang, Wenqian,Xia, Yu. 2019

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