Fresh rice (within 1 month after milling stored in a refrigerator) and degraded rice (more than 6 months after milling stored at room temperature) were imaged and compared using OCT-SS-01.
Although no significant differences were observed with the naked eye, the differences between fresh and degraded rice could be observed when compared with OCT-SS-01 images.
①Projection image
The "cracks" caused by dryness, which cannot be seen with the naked eye, could be observed clearly.
②Cross-section image
In the degraded rice, we found that "cracks" and "stains" that could not be seen with the naked eye or projected images reached the inside of the rice.
Cross-section movie of fresh rice