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남해산 고사리의 이화학적 특성 및 항산화 활성
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2015 실적-남해산고사리의 이화학적 특성 및 항산화활성_2015.3 _조리과학회지.pdf (343.5Kb) (34)

초록

In this study, we investigate the physicochemical characteristics of dried bracken (Pteridium aquilinum Kuhn) harvested in Namhae. The moisture, ash, crude protein and crude lipid content was 10.79±0.31%, 6.16±0.04%, 33.20±0.40% and 2.45±0.27%, respectively. The total mineral (Ca, Fe, K, Mg, Na, Mn) content was 36720.1±495.7 mg/kg, with K being the highest at 31890.0±503.8 mg/kg. The total free amino acid content was 704.41 mg/100 g, the amount of methionine, citrulline and sarcosine being higher than the others. The water and 50% ethanol extracts from the dried bracken were evaluated for the total poly phenolic compound content, antioxidant activity and xanthine oxidase and α-glucosidase inhibitory activity. The total polyphenol content in the 50% ethanol extract (1574.86±18.31 mg/100 g) was higher than in the water extract (1240.24±16.32 mg/100 g). The DPPH and ABT radical scavenging activity was increased according to the concentration of bracken extract, and the activity in the 50% ethanol extract was higher than in the water extract. In addition, the xanthine oxidase and α-glucosidase inhibitory activity was also higher in the 50% ethanol extract than in the water extract. In conclusion, bracken has great antioxidative and antidiabetic effects and can be used as a preventive agent for oxidation and diabetes.

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