| 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 $10.79{ pm}0.31%$ , $6.16{ pm}0.04%$ , $33.20{ pm}0.40%$ and $2.45{ pm}0.27%$ , respectively. The total mineral (Ca, Fe, K, Mg, Na, Mn) content was $36720.1{ pm}495.7mg/kg$ , with K being the highest at $31890.0{ pm}503.8mg/kg$ . 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 ${ alpha}$ -glucosidase inhibitory activity. The total polyphenol content in the 50% ethanol extract ( $1574.86{ pm}18.31mg/100g$ ) was higher than in the water extract ( $1240.24{ pm}16.32mg/100g$ ). 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 ${ alpha}$ -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. |
