Journal of Innovative Optical Health Sciences, 2015, 8 (6): 1550035, Published Online: Jan. 10, 2019  

Pasting properties by near-infrared reflectance analysis of whole grain paddy rice samples

Author Affiliations
1 Division of Postharvest Technology KingMongkut's University of Technology Thonburi 126 Pracha-Utid Road Bangmod, Toongkru, Bangkok 10140, Thailand
2 Division of Agricultural Engineering and Technology Rajamungala University of Technology Tawan-ok, 43/6 Bangpha, Sriracha, Chonburi, Thailand
3 Department of Food Engineering, Faculty of Engineering at Kamphaengsaen Kasetsart University, Nakhonpathom, Thailand
4 Department of Product Development, Kasetsart University 50 Ngam Wong Wan Rd Ladyao, Chatuchak Bangkok, Thailand
5 Graduate School of Science and Technology, Niigata University 8050 Ikarashi 2-no-cho Nishi-ku, Niigata, 950-2181 Japan
Abstract
A rapid predictive method based on near-infrared reflectance spectroscopy (NIRS) of paddy rice was developed to measure the pasting properties of rice. The paddy rice samples were scanned by a near-infrared reflectance spectrometer in the wavelength region of 1400–2400 nm and preprocessed by mathematical pretreatments prior to pasting properties analysis using a rapid visco-analyzer (RVA). The results indicated that the developed models of setback (SB), peak viscosity (PV), breakdown (BD) and consistency (CS) provided good prediction results with relatively high correlation coefficients (0.81–0.96). In addition, the validity of the calibration models was statistically tested. Standard error of prediction (SEPT and bias were small enough without any significance at 95% confidence interval. Nonetheless, this study proved that the use of NIRS for predicting pasting properties was feasible in paddy rice and could be applied in commercial trade and research.

Pornarree Siriphollakul, Sirichai Kanlayanarat, Ronnarit Rittiron, Jaitip Wanitchang, Thongchai Suwonsichon, Panida Boonyaritthongchai, Kazuhiro Nakano. Pasting properties by near-infrared reflectance analysis of whole grain paddy rice samples[J]. Journal of Innovative Optical Health Sciences, 2015, 8(6): 1550035.

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