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Analysis of Grain Characteristics in Korean Wheat and Screening Wheat for Quality Using Near Infrared Reflectance Spectroscopy
근적외선 분광분석기를 이용한 밀 품질 분석 및 계통 선발 응용
Korean J. Breed. Sci. 2016;48(4):442-449
Published online December 31, 2016
© 2016 Korean Society of Breeding Science.

Kyeong-Hoon Kim1*, Chon-Sik Kang2, In-duk Choi3, Hak-shin Kim2, Jong-Nae Hyun1, and Chul Soo Park4

1Coarse Cereal Crop Research Division, NICS, RDA, Miryang, 627-803, Korea2National Institute of Crop Science, RDA, WanJu-gun, 565-851, Korea3Central Area Crop Breeding Division, NICS, RDA, Suwon, 441-707, Korea4Department of Crop Science and Biotechnology, Chonbuk National University, Jeonju 561-756, Korea
1국립식량과학원 남부작물부, 2국립식량과학원, 3국립식량과학원 중부작물부, 4전북대학교
Near infrared reflectance spectroscopy (NIRS) has been used as a rapid analysis tool to many components in cereal grains. This study was to investigate the potential NIRS application for determination of components in Korean wheat. Main components of wheat quality are protein content, moisture content, SDS-sedimentation volume and ash content. Wheat has screened for quality, hardness of seed by NIRS in CIMMYT (International Maize and Wheat Improvement Center). NIRS calibration was used as a rapid and simultaneous analysis method to determine the wheat quality components. A total of 282 wheat samples, collected from a wide range of Korean wheat cultivation region for 2 years, were analyzed by NIRS. NIRS calibration of individual components were developed using first derivation, second derivation and modified partial least-squares regression and internal cross validation method. As a result, calibration formula of protein was y=0.937x+0.786, calibration formula of moisture was y=0.922x+0.911, calibration formula of ash was y=0.933x+0.08, calibration formula of SDS-sedimentation volume was y=0.947x+2.150. NIRS calibration for wheat quality may be useful for determining protein(R2 = 93.6), moisture(R2 = 91.6), SDS-sedimentation volume(R2 = 94.3), and ash(R2 = 93.4). This study shows that 4 calibrations of NIRS is a useful application in the accurate and rapid determination of wheat quality. Therefore, NIRS could be used to rapidly determine the quality contents of wheat for grade evaluation in a purchasing of wheat cultivation region.
Keywords : Wheat, Near infra-red, NIRS, Grain, Quality

June 2019, 51 (2)