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Identification of flours using NIR reflectance spectroscopy and SIMCA
Rudiati Evi Masithoh, Ira Yuliyanda

Department of Agricultural and Biosystems Engineering, Faculty of Agricultural Technology, Universitas Gadjah Mada, Indonesia


Abstract

A total of 72 spectra of flour samples taken from 6 types of crops, i.e. of banana, breadfruit, taro, arrowroot, purple sweet potato, and modified cassava (mocaf). The reflectance data were measured using the NIRFlex N500 Fiber Optic Solids Cell at 4000-10,000 cm-1. The spectral obtained were pre-processed and analyzed using The Unscrambler X version 10.5.1. A 2nd derivative Savitzky-Golay (polynomial order 2, 25 smoothing points) followed by a Standard Normal Variate (SNV) were used for pre-treatment data. Characterization of the flours was done using chemometric models based on principal component analysis (PCA) and soft independent modeling of class analogy (SIMCA) explained for each group of flour samples of banana, breadfruit, taro, arrowroot, purple sweet potato, and modified cassava (mocaf). SIMCA calibration models were constructed using 6 spectral measurements for each type of flours; classification set were constructed using 6 spectral measurements. The SIMCA accuracy classification were 100% for mocaf, banana, arrowroot, bread fruit, and taro, and 67% for purple sweet potato.

Keywords: Near Infrared Spectroscopy (NIRS), PCA, SIMCA, SNV

Topic: Biophysics engineering

Link: https://ifory.id/abstract/QVTck9Yf3vR7

Conference: The 3rd International Symposium on Agricultural and Biosystem Engineering (ISABE 2019)

Plain Format | Corresponding Author (Rudiati Evi Masithoh)

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