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한국약용작물학회 한국약용작물학회지 한국약용작물학회지 제21권 제4호
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    초록·키워드

    This study was performed to select adequate plant materials for developing a natural α-glucosidase inhibitor by analyzing α-glucosidase inhibition activity in fronds and rhizomes of three Dryopteridaceae species: Cyrtomium fortunei, Polystichum polyblepharum, and P. lepidocaulon. The highest α-glucosidase inhibitor obtained from frond of P. lepidocaulon (4.16㎍ · mL<sup>-1</sup>), and rhizome of C. fortunei (1.84㎍ · mL<sup>-1</sup>), showed much higher inhibition activity than acarbose (1413.70㎍ · mL<sup>-1</sup>). The biomass required to inhibit α-glucosidase by 50% was 0.04 ~ 0.35㎎ for frond and 0.03 ~ 0.10㎎ for rhizome, and P. lepidocaulon required the least amount of fronds and P. lepidocaulon the least rhizomes. In frond, α-glucosidase inhibition activity was the highest in water fraction of C. fortunei (20.2㎍ · mL<sup>-1</sup>), and n-butanol fraction of P. lepidocaulon (9.33㎍ · mL<sup>-1</sup>) and P. polyblepharum (5.10㎍ · mL<sup>-1</sup>). In rhizome, it was the highest in n-butanol fractions of C. fortunei (19.76㎍ · mL<sup>-1</sup>) and P. polyblepharum (4.47㎍ · mL<sup>-1</sup>), and ethylacetate fraction of P. lepidocaulon (5.46㎍ · mL<sup>-1</sup>). The frond biomass required for 50% α-glucosidase inhibition was the lowest in the water fraction of C. fortunei (1.43㎎), and n-butanol fractions of P. lepidocaulon (1.10㎎) and P. polyblepharum (0.66㎎). The required biomass of rhizome was the lowest in the water fraction of C. fortunei (1.59㎎), and n-hexane fractions of P. lepidocaulon (0.04㎎) and P. polyblepharum (0.15㎎). The result of this study suggested that the three Dryopteridaceae species had high α-glucosidase inhibition activity with small biomass, which might have high value as materials for economical anti-diabetic medication.

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      UCI(KEPA) : I410-ECN-0101-2019-480-000587532