Journal of Food and Nutrition Research
ISSN (Print): 2333-1119 ISSN (Online): 2333-1240 Website: Editor-in-chief: Prabhat Kumar Mandal
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Journal of Food and Nutrition Research. 2014, 2(12), 946-951
DOI: 10.12691/jfnr-2-12-14
Open AccessArticle

Application of Oxygen-argon Plasma as a Potential Approach of Improving the Nutrition Value of Pre-germinated Brown Rice

Phumon Sookwong1, , Sittidet Yodpitak1, Jenjira Doungkaew1, Jaruwan Jurithayo1, Dheerawan Boonyawan2 and Sugunya Mahatheeranont1, 3

1Rice Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand

2Plasma and Beam Physics Research Facility, Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand

3Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand

Pub. Date: November 20, 2014

Cite this paper:
Phumon Sookwong, Sittidet Yodpitak, Jenjira Doungkaew, Jaruwan Jurithayo, Dheerawan Boonyawan and Sugunya Mahatheeranont. Application of Oxygen-argon Plasma as a Potential Approach of Improving the Nutrition Value of Pre-germinated Brown Rice. Journal of Food and Nutrition Research. 2014; 2(12):946-951. doi: 10.12691/jfnr-2-12-14


This is the first study to apply plasma technology for improving nutrition value of cereal products. Cold plasma, a mixture of oxygen and argon plasma, was applied to rice seeds before pre-germination process. Plasma condition of 10 watts, 5 seconds, and 5 millimeters distance and 10 watts, 5 seconds, and 8 millimeters distance created high germination rates of pre-germinated brown rice. The latter conditions gave the grains with longer roots and bodies. Plasma treatment could result in increasing contents of total phenolics and γ-aminobutyric acid. Gas chromatography-mass spectrometry revealed 13 identifiable compounds: simple phenolic compounds; pyrans; furan; quinone; and fatty acids, in which biosyntheses of these 13 compounds were likely to be promoted by the plasma processing. These findings suggest that plasma technology could provide better quality pre-germinated brown rice.

plasma pre-germination brown rice gas chromatography-mass spectrometry phenolics γ-aminobutyric acid

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