Open AccessThai Hom Mali rice purity test by using digital image analysis
Author(s) -
T. Kleawphaipan,
S. Somprasong,
T. Srahongthong,
Busara Pattanasiri
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1380/1/012076
Subject(s) - chaff , agricultural engineering , white rice , brown rice , mathematics , agricultural science , engineering , agronomy , environmental science , geography , biology , food science , archaeology
The mixing of non-aromatic rice is one of the major problems that impact directly to Thai Hom Mali Rice export markets. Thus, to preserve the Thai Hom Mali Rice quality and reputation of exporting, the National Bureau of Agricultural Commodity and Food Standards (ACFS) establishes a manual of Thai Hom Mali Rice standards, where the rice grain must have at least 92% of Thai Hom Mali. Nowadays, the DNA-based method has been proved to be a robust and accurate tool for testing rice purity. However, this adulterants detection technique is expensive and unfit for a small scale of commercial. In this work, we applied image analysis by using the computer together with a flatbed scanner to characterize the rice grain and classify different rice varieties. We found that some rice grain morphological features, such as chaff-tip width, right concave depth, chaff-tip angle, and interior angle, are possible to be used for distinguishing between Khao Dawk Mali 105, Chainat 1, Pathum Thani 1, and RD 23.