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자료유형
학술저널
저자정보
Jin Hwan Lee (Rural Development Administration) In-Youl Baek (Rural Development Administration) Jong-Min Ko (Rural Development Administration) Nam Suk Kang (Rural Development Administration) Seong-Hyu Shin (Rural Development Administration) Sea-Gyu Lim (Rural Development Administration) Ki-Won Oh (Rural Development Administration) Sang-Ouk Shin (Rural Development Administration) Keum-Yong Park (Rural Development Administration) Ki Hun Park (Gyeongsang National University) Tae Joung Ha (Rural Development Administration)
저널정보
한국식품과학회 Food Science and Biotechnology Food Science and Biotechnology vol 17. no 1
발행연도
2008.2
수록면
1 - 7 (7page)

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Soybeans with brown, black, and yellow seed coats were compared to total phenolic contents and antioxidant activities including 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2"-azino-bis-(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) radicals. Also, 3 seed coats were examined for inhibitory activities on tyrosinase and lipoxygenase-1 on the basis of spectrophotometric and polarographic methods. Among seed coat extracts, 80% methanol extract of brown soybean seed coat showed the highest total phenolic contents (68.9±3.29 mg GAE/g) as well as exhibited potent scavenging effects on the DPPH (IC<sub>50</sub>μg/mL) and ABTS (IC<sub>50</sub>=3.7 μg/mL) radicals. In a polarographic experiment, this extract was potentially inhibited the oxidation of L-tyrosine and L-3,4-dihydroxy-phenylalanin (L-DOPA) catalyzed by mushroom tyrosinase with IC<sub>50</sub>of 12.4 and 63.7 μg/mL, respectively. It was also detected inhibition of the tyrosinase catalyzed oxidation of L-DOPA with an IC<sub>50</sub>value of 120.3 mg/mL in UV spectrophotometric experiment. In addition, this extract inhibited the linoleic acid peroxidation catalyzed by lipoxygenase-1 with an IC<sub>50</sub> value of 4.0 μg/mL. These results suggest that brown soybean may possess more beneficial effect on human health than black and yellow soybeans.

목차

Abstract
Introduction
Materials and Methods
Results and Discussion
Acknowledgments
References

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