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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.10
- 수록면
- 463 - 469 (7page)
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초록· 키워드
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Background: Roots of Withania somnifera (WS) are a celebrated medicinal ingredient in Ayurvedic and many other indigenous systems of medicine. The present study investigates the effect of the phytochemical composition of the extracts on their antioxidant and reducing activities.
Methods: WS roots were extracted with water, acetone, aqueous methanol (1:1), and methanol:-chloroform:water (1:1:1) to obtain aqueous, acetone, hydro-methanolic, and methanolechloroformewater extracts. Thereafter, phytochemical constitution and antioxidant and reducing activities of the extractswere compared using different qualitative and quantitative tests.
Results: Maximum extraction recovery was obtained with 50% aqueous methanol whereas extraction with acetone yielded the poorest recovery. Methanolechloroformewater extract had the highest content of phytochemical constituents, except tannins, and also exhibited the highest antioxidant and reducing activities.
Conclusion: Phytochemical composition and antioxidant and reducing activities of the extracts were positively associated with the use of organic solvents during the extraction process. Alkaloids and flavonoids were the most important contributors in the antioxidant and reducing activities of the extracts.
Methods: WS roots were extracted with water, acetone, aqueous methanol (1:1), and methanol:-chloroform:water (1:1:1) to obtain aqueous, acetone, hydro-methanolic, and methanolechloroformewater extracts. Thereafter, phytochemical constitution and antioxidant and reducing activities of the extractswere compared using different qualitative and quantitative tests.
Results: Maximum extraction recovery was obtained with 50% aqueous methanol whereas extraction with acetone yielded the poorest recovery. Methanolechloroformewater extract had the highest content of phytochemical constituents, except tannins, and also exhibited the highest antioxidant and reducing activities.
Conclusion: Phytochemical composition and antioxidant and reducing activities of the extracts were positively associated with the use of organic solvents during the extraction process. Alkaloids and flavonoids were the most important contributors in the antioxidant and reducing activities of the extracts.
목차
abstract
1. Introduction
2. Materials and methods
3. Results and discussion
4. Conclusion
References
참고문헌 (21)
참고문헌 신청
[학술지(정기간행물)] - Tiwari R / 2014 / Ashwagandha (Withania somnifera): role in safeguarding health, immunomodulatory effects, combating infections, and therapeutic applications: a review / J Biol Sci 14 : 77 ~ 94
[단행본] - Khare CP / 2004 / Encyclopedia of Indian medicinal plants / Springer-Verlag : 480 ~ 483
[학술지(정기간행물)] - Gupta GL / 2007 / Withania somnifera (Ashwagandha): a review / Pharmacog Rev 1 : 129 ~ 136
[단행본] - Weiner MA / 1994 / Herbs that heal / Quantum Books : 70 ~ 72
[학술지(정기간행물)] - Dhanani T / 2017 / Effect of extraction methods on yield, phytochemical constituents, and antioxidant activity of Withania somnifera / Arabian J Chem 10 (Suppl. 1) : S1193 ~ S1199
[단행본] - Khare CP / 2004 / Encyclopedia of Indian medicinal plants / Springer-Verlag : 480 ~ 483
[학술지(정기간행물)] - Gupta GL / 2007 / Withania somnifera (Ashwagandha): a review / Pharmacog Rev 1 : 129 ~ 136
[단행본] - Weiner MA / 1994 / Herbs that heal / Quantum Books : 70 ~ 72
[학술지(정기간행물)] - Dhanani T / 2017 / Effect of extraction methods on yield, phytochemical constituents, and antioxidant activity of Withania somnifera / Arabian J Chem 10 (Suppl. 1) : S1193 ~ S1199
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