Purity Test of Rice Grain

Rice is economic important crop of Thailand that grows in many parts of the country. Rice account for the first group of goods to be exported. Contamination of rice grain is the most serious problem for exporting that affected the image of the country. Contamination can take place in many steps of production such as seeds before grow, grains during harvesting or husking and intend to mix by the seller.

To detect the contamination by physiological characteristics such as length, width and clearance of rice grain appeared to be very difficult. Because some variety is similar to the others that make the visual detection is not accurate enough. Using chemical characteristics can also detect the different between rice variety such as amylose content and  gelatinization temperature but this method requires the other characters to combine for interpretation. Further more,many aromatic Thai rice varieties contain similar range of amylose content.

Purity test of rice grain (Polyacrylamide Gel Electrophoresis : Silver Staining)


purity test of rice grain by Molecular Marker
In present molecular marker is employed for variety identification and purity test of rice grain. This method can identify the contamination of rice grain with high accuracy result

Sample : Result of Purity Test

Purity test of rice grain for
- Purity rice ? 
- Identification of Rice Grain
- Persentage of Purity Test


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