Nondestructive evaluation of soluble solid content in strawberry by near infrared spectroscopy

Zhiming Guo; Wenqian Huang; Liping Chen; Xiu Wang; Yankun Peng

doi:10.1117/12.2019628

4 March 2013 Nondestructive evaluation of soluble solid content in strawberry by near infrared spectroscopy

Zhiming Guo, Wenqian Huang, Liping Chen, Xiu Wang, Yankun Peng

Proceedings Volume 8761, PIAGENG 2013: Image Processing and Photonics for Agricultural Engineering; 87610O (2013) https://doi.org/10.1117/12.2019628
Event: Third International Conference on Photonics and Image in Agriculture Engineering (PIAGENG 2013), 2013, Sanya, China

Abstract

This paper indicates the feasibility to use near infrared (NIR) spectroscopy combined with synergy interval partial least squares (siPLS) algorithms as a rapid nondestructive method to estimate the soluble solid content (SSC) in strawberry. Spectral preprocessing methods were optimized selected by cross-validation in the model calibration. Partial least squares (PLS) algorithm was conducted on the calibration of regression model. The performance of the final model was back-evaluated according to root mean square error of calibration (RMSEC) and correlation coefficient (R² _c) in calibration set, and tested by mean square error of prediction (RMSEP) and correlation coefficient (R² _p) in prediction set. The optimal siPLS model was obtained with after first derivation spectra preprocessing. The measurement results of best model were achieved as follow: RMSEC = 0.2259, R² _c = 0.9590 in the calibration set; and RMSEP = 0.2892, R² _p = 0.9390 in the prediction set. This work demonstrated that NIR spectroscopy and siPLS with efficient spectral preprocessing is a useful tool for nondestructively evaluation SSC in strawberry.

Citation Download Citation

Zhiming Guo, Wenqian Huang, Liping Chen, Xiu Wang, and Yankun Peng "Nondestructive evaluation of soluble solid content in strawberry by near infrared spectroscopy", Proc. SPIE 8761, PIAGENG 2013: Image Processing and Photonics for Agricultural Engineering, 87610O (4 March 2013); https://doi.org/10.1117/12.2019628

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