Abstract
Sorting yield decreases if scab-damaged wheat kernels are removed by conventional sorting systems because of the revised agricultural product inspection standard. The purpose of this study was to investigate the adaptability of an optical sorter to remove scab-damaged wheat kernels to increase sorting yield. The results showed that near-infrared transmittance of scab-damaged wheat kernels was apparently lower compared with that of nondamaged wheat kernels. Thus, the optical sorter equipped with a near-infrared sensor could remove scab-damaged wheat kernels. Sorting yield can be increased by using a wheat grain sorting system with an optical sorter built into the return process of the gravity separator.
