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Pre- and Post-Germination Changes in Pharmaceutical Compounds of Germinated Brown Rice  

Jung, Hey-Young (Dept. of Biological Resources & Technology, Soonchunhyang Univ.)
Lee, Dong-Hyun (Misillan Farm Co. Ltd.)
Baek, Hum-Young (Korea INS Pharm Inc.)
Lee, Young-Sang (Dept. of Biological Resources & Technology, Soonchunhyang Univ.)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.53, no.spc, 2008 , pp. 37-43 More about this Journal
Abstract
Recent consumption of germinated brown rice is increasing due to its health-beneficial effects. To clarify germination-dependent changes in functional compound contents, 5 different types of (ordinary, glutinous, green-kerneled, red-colored and black-colored) rices were selected and their pre- and post-germination content changes in vitamin E (${\alpha}-$, ${\beta}-$, ${\gamma}-tocopherols$ and ${\alpha}-$, ${\gamma}-$, ${\delta}-tocotrienols$), squalene, and phytosterols (campesterol, stigmasterol, sitosterol) were evaluated. In the case of vitamin E isomer contents, germination generally resulted in decreasing tendency around 10% in most isomers as well as in total tocopherol and tocotrienol contents in all types of rices. In the case of squalene, significant increase could be observed in glutinous rice (by 31%), while other types of rices exhibited no changes or slight reduction by germination. Regarding stigmasterol contents, all tested types of germinated brown rice exhibited significant increment by 19 to 27% compared to nongerminated cases, except for green colored-rice which showed statistically not significant 5% increment. No changes or slight reductions, however, could be observed in campesterol and sitosterol, as well as in total phytosterol contents. As a conclusion, most of tested pharmaceutical compounds exhibited statistically not significant changes except for stigmasterol which were increased by the germination process.
Keywords
germinated brown rice; phytosterol; squalene; tocopherol; tocotrienol;
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  • Reference
1 Autio, K. 1996. Functional aspects of cereal cell wall polysaccharides, In Carbohydrate in Food. A. C. Eliasson (ed), 227-266
2 Cho, E. J. and K. T. Lee. 2003. Analysis of phytosterols and tocopherols, and production of structured lipids from the extracted plant oils. Korean J. Food Preservation 10(3) : 370-375
3 Storm, H. K., S. Y. Oh, B. F. Kimler, and S. Norton. 1993. Radioprotection of mice by dietary squalene. Lipid 28(6) : 555-559
4 Kohno, Y., T. Egawa, S. Itoh, S. Nagaoka, M. Takahashi, and K. Mukai, 1995. Kinetic study of quenching reaction of singlet oxygen and scavenging reaction of free radical by squalene in butanol. Biochem. Biophys. Acta. 1256(1) : 52-56
5 Nakagawa, K. and A. Onota. 1996. Accumulation of ${\gamma}$-aminobutyric acid(GABA) in the rice germ. Shokuhin and Kaihatsu 31 : 43-46
6 Okada, T., T. Sugishita, T. Murakami, H. Murai, T. Saikusa, T. Horino, A. Onoda, O. Kajimoto, R. Takahashi, and T. Takahashi. 2000. Effect of the defatted rice germ enriched with GABA for sleeplessness, depression, autonomic disorder by oral administration. J. Jpn. Soc. Food Scj. Technol. 47: 596-603
7 Lee, J., K. T. Lim, J. H. Hong, C. O. Rhee, Y. B. Lee, S. M. Choi, and J. H. Chung. 2006. Effects of germinating types of water-soaking & air-exposure and chitosan treatment on brown rice germination. J. of Biosystems Eng. 31(4) : 363-368
8 Desai, K. N., H. Wei, and C. A. Lamartiniere. 1996. The preventive and therapeutic potential of the squalene containing compound on tumor promotion and regression. Cancer. Lett. 101(1) : 93-96
9 Koo, B. S. and J. W. Lee, 2004. Effect of phytosterol treatment on plasma lipids and glucose in rats. Korean J. Food Culture 19(4) : 429-434
10 Thiele, B., K. Gu¨nther, and M. J. Schwuger. 1997. Alkylphenol ethoxylates: Trace analysis and environmental behavior. Chem. Rev. 97 : 3247-3272
11 Park, H. and J. K. Kim. 2002. Effects of squalene supplementation on antioxidative capacity and blood profiles. Korean J. Exercise Nutrition 6(3) : 197-203
12 Cho, K. S., M. S. Sung, and Y. S. Lee. 2007. Gas Chromatographybased simultaneous analysis of tocopherols, tocotrienols, squalene, and phytosterols in rice bran. Korean J. Crop Sci. 52(Suppl. 1) : 151