Hi Dipak Khanal

In the photo of the paper below, it is inspected after light parling.

In order to measure chalkiness in the brown rice state, a workpiece is required between the camera and the light source as a positional relationship.

https://www.biorxiv.org/content/10.1101/2020.10.16.342873v1.full

Hello,

Measureing chalkiness in brown rice grains using the Winseelde scanner can be challenging due to its design for milled white rice grains. However, it can be done with some modifications to the standard procedure. To measure chalkiness in brown rice grains, follow these steps:

1. Preparation of samples: Dehull and polish the brown rice grains to remove the bran layer, exposing the endosperm. Ensure uniform size and shape of the polished grains.

2. Calibration of the Winseelde scanner: Calibrate the scanner by scanning a range of brown rice samples with varying degrees of chalkiness.

3. Scanning the samples: Place the polished brown rice grains in the scanner's sample holder and scan them according to the manufacturer's instructions.

4. Analysis of the data: Analyze the data to establish a calibration curve by plotting the degree of chalkiness (in percentage) against the scanner readings for each sample.

5. Validate the calibration curve: Validate the calibration curve by scanning additional brown rice samples with known degrees of chalkiness and comparing the scanner readings to the predicted values. If the calibration curve is accurate, the scanner readings should match the predicted values.

Establishing a calibration curve for measuring chalkiness in brown rice grains using the Winseelde scanner is crucial for accurate and reliable measurements. By using a range of brown rice samples with varying degrees of chalkiness, establishing a reliable calibration curve, and validating the curve, accurate measurements can be obtained.