표제지
목차
I. 서론 7
II. 재료 및 방법 11
1. 실험 재료 11
2 추출물 제조 11
(1) 환류 물 추출물(RW : Reflux extraction-Water) 11
(2) 환류 에탄올 추출물(RE : Reflux extraction-Ethanol) 11
(3) 가압 열수 추출물(PW : Pressure heating extraction-Water) 11
3. 시약 및 기기 13
4. 총 폴리페놀 화합물 함량 14
5. 전자공여능(Electron donating ability : EDA) 측정 15
6. SOD(Superoxide dismutase) 유사활성능 측정 16
7. 아질산염 소거능(Nitrite-scavenging ability) 측정 17
8. Xanthine oxidase 저해 활성 18
9. Tyrosinase 저해 활성 19
10. 통계처리 20
III. 결과 및 고찰 21
1. 총 폴리페놀(Total polyphenols) 함량 21
2. 전자공여능(Electron donating ability) 24
3. SOD 유사활성능 28
4. 아질산염 소거능 32
5. Xanthine oxidase 저해 활성 38
6. Tyrosinase 저해 활성 42
IV. 결론 46
참고문헌 48
국문초록 59
Abstract 61
감사의 글 63
Table 1. Total polyphenol contents of various extracts fraction obtained from A. dahurica 22
Table 2. Electron donating ability of various extracts fraction obtained from A. dahurica 26
Table 3. Superoxide dismutase(SOD) like activity of various extracts fraction obtained from A. dahurica 30
Table 4. Nitrite scavenging ability of A. dahurica extracts at pH respectively 34
Table 5. Xanthine oxidase inhibition of various extracts fraction obtained from A. dahurica 40
Table 6. Tyrosinase inhibition of various extracts fraction obtained from A. dahurica 44
Fig. 1. Extraction procedure of the A. dahurica. 12
Fig. 2. The method of polyphenol contents measurement. 14
Fig. 3. The method of electron donating ability. 15
Fig. 4. The method of superoxide dismutase like ability. 16
Fig. 5. The method of nitrite scavenging ability. 17
Fig. 6. The method of xanthine oxidase inhibition. 18
Fig. 7. The method of tyrosinase inhibition. 19
Fig. 8. Contents of total phenolic compounds by extraction methods from A. dahurica. Bars within different letters are significantly different at p[0.05 by Duncan's multiple range test. 23
Fig. 9. Electron donating ability of A. dahurica roots(a) and leaves(b) extracts. Bars within different letters are significantly different at p[0.05 by Duncan's multiple range test. 27
Fig. 10. Superoxide dismutase(SOD) like activity of A. dahurica roots and leaves extracts. Bars within different letters are significantly different at p[0.05 by Duncan's multiple range test. 31
Fig. 11. Nitrite scavenging ability of A. dahurica roots(a) and leaves(b) extracts at pH 1.2. Bars within different letters are significantly different at p[0.05 by Duncan's multiple range test. 35
Fig. 12. Nitrite scavenging ability of A. dahurica roots(a) and leaves(b) extracts at pH 3.0. Bars within different letters are significantly different at p[0.05 by Duncan's multiple range test. 36
Fig. 13. Nitrite scavenging ability of A. dahurica roots(a) and leaves(b) extracts at pH 6.0. Bars within different letters are significantly different at p[0.05 by Duncan's multiple range test. 37
Fig. 14. Xanthine oxidase inhibition of A. dahurica roots(a) and leaves(b) extracts. Bars within different letters are significantly different at p[0.05 by Duncan's multiple range test. 41
Fig. 15. Tyrosinase inhibition of A. dahurica roots(a) and leaves(b) extracts. Bars within different letters are significantly different at p[0.05 by Duncan's multiple range test. 45