지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.10
- 수록면
- 572 - 577 (6page)
이용수
초록· 키워드
오류제보하기
Background: Panax ginseng Meyer is cultivated because of its medicinal effects on the immune system, blood pressure, and cancer. Major ginsenosides in fresh ginseng are converted to minor ginsenosides by structural changes such as hydrolysis and dehydration. The transformed ginsenosides are generally more bioavailable and bioactive than the primary ginsenosides. Therefore, in this study, hydrothermal processing was applied to ginseng preparation to increase the yields of the transformed ginsenosides, such as 20(S)-Rg3, Rk1, and Rg5, and enhance antioxidant activities in an effective way.
Methods: Ginseng extract was hydrothermally processed using batch reactors at 100e160℃ with differing reaction times. Quantitative analysis of the ginsenoside yields was performed using HPLC, and the antioxidant activity was qualitatively analyzed by evaluating 2,2’-azino-bis radical cation scavenging, 2,2-diphenyl-1-picrylhydrazyl radical scavenging, and phenolic antioxidants. Red ginseng and sun ginseng were prepared by conventional steaming as the control group.
Results: Unlike steaming, the hydrothermal process was performed under homogeneous conditions. Chemical reaction, heat transfer, and mass transfer are generally more efficient in homogeneous reactions. Therefore, maximum yields for the hydrothermal process were 2.5e25 times higher than those for steaming, and the antioxidant activities showed 1.6e4-fold increases for the hydrothermal process. Moreover, the reaction time was decreased from 3 h to 15e35 min using hydrothermal processing.
Conclusion: Therefore, hydrothermal processing offers significant improvements over the conventional steaming process. In particular, at temperatures over 140℃, high yields of the transformed ginsenosides and increased antioxidant activities were obtained in tens of minutes.
Methods: Ginseng extract was hydrothermally processed using batch reactors at 100e160℃ with differing reaction times. Quantitative analysis of the ginsenoside yields was performed using HPLC, and the antioxidant activity was qualitatively analyzed by evaluating 2,2’-azino-bis radical cation scavenging, 2,2-diphenyl-1-picrylhydrazyl radical scavenging, and phenolic antioxidants. Red ginseng and sun ginseng were prepared by conventional steaming as the control group.
Results: Unlike steaming, the hydrothermal process was performed under homogeneous conditions. Chemical reaction, heat transfer, and mass transfer are generally more efficient in homogeneous reactions. Therefore, maximum yields for the hydrothermal process were 2.5e25 times higher than those for steaming, and the antioxidant activities showed 1.6e4-fold increases for the hydrothermal process. Moreover, the reaction time was decreased from 3 h to 15e35 min using hydrothermal processing.
Conclusion: Therefore, hydrothermal processing offers significant improvements over the conventional steaming process. In particular, at temperatures over 140℃, high yields of the transformed ginsenosides and increased antioxidant activities were obtained in tens of minutes.
목차
ABSTRACT
1. Introduction
2. Materials and methods
3. Results and discussion
4. Conclusion
References
참고문헌 (29)
참고문헌 신청
[학술지(정기간행물)] - Christensen LP / 2008 / Chapter 1 Ginsenosides; Chemistry, biosynthesis, analysis, and potential health effects / Adv Food Nutr Res 55 : 1 ~ 99
[학술지(정기간행물)] - Attele AS / 1999 / Ginseng pharmacology : multiple constituents and multiple actions / Biochem Pharmacol 58 : 1685 ~ 1693
[학술지(정기간행물)] - Kim SJ / 2008 / Effect of processing methods on the concentrations of bioactive components of ginseng (Panax ginseng C.A. Meyer) adventitious roots / LWTeFood Sci Technol 41 : 959 ~ 964
[학술지(정기간행물)] - Mi J / 2012 / Enriched separation of protopanaxatriol ginsenosides, malonyl ginsenosides and protopanaxadiol ginsenosides from Panax ginseng using macroporous resins / J Food Eng 113 : 577 ~ 588
[학술지(정기간행물)] - Qi LW / 2010 / American ginseng : Potential structureefunction relationship in cancer chemoprevention / Biochem Pharmacol 80 : 947 ~ 954
[학술지(정기간행물)] - Attele AS / 1999 / Ginseng pharmacology : multiple constituents and multiple actions / Biochem Pharmacol 58 : 1685 ~ 1693
[학술지(정기간행물)] - Kim SJ / 2008 / Effect of processing methods on the concentrations of bioactive components of ginseng (Panax ginseng C.A. Meyer) adventitious roots / LWTeFood Sci Technol 41 : 959 ~ 964
[학술지(정기간행물)] - Mi J / 2012 / Enriched separation of protopanaxatriol ginsenosides, malonyl ginsenosides and protopanaxadiol ginsenosides from Panax ginseng using macroporous resins / J Food Eng 113 : 577 ~ 588
[학술지(정기간행물)] - Qi LW / 2010 / American ginseng : Potential structureefunction relationship in cancer chemoprevention / Biochem Pharmacol 80 : 947 ~ 954
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UCI(KEPA) : I410-ECN-0101-2018-524-001599357