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Antioxidant Activity of Stevia Leaf Extracts Prepared by Various Extraction Methods
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다양한 추출방법으로 조제된 스테비아 잎 추출물의 항산화 활성

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Academic journal
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Journal
The korean Society of Food Science and Nutrition Journal of the Korean Society of Food Science and Nutrition Vol.39 No.2 KCI Accredited Journals SCOPUS
Published
2010.2
Pages
313 - 318 (6page)

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Antioxidant Activity of Stevia Leaf Extracts Prepared by Various Extraction Methods
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Research history (3)

2010

[P8-293] 추출방법별 스테비아 추출물의 인슐린 분비 유도 활성
김재훈 ,  성낙윤 ,  정필문 and others 5 한국식품영양과학회 학술대회발표집 2010.10 Proceeding
Antioxidant Activity of Stevia Leaf Extracts Prepared by Various Extraction Methods
Jae-Hun Kim ,  Nak-Yun Sung ,  Sun-Kyu Kwon and others 7 Journal of the Korean Society of Food Science and Nutrition 2010.02 Academic journal

2009

[P8-86] 처리 방법별 스테비아 추출물의 항산화 활성 및 미백활성 변화
김재훈 ,  성낙윤 ,  권선규 and others 6 한국식품영양과학회 학술대회발표집 2009.11 Proceeding
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Abstract· Keywords

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This study was carried out to evaluate the antioxidant activity of stevia extracts from Stevia rebaudiana Bertoni leaves. Stevia extracts were prepared by three different methods including hot water extraction (HWE) at 120℃ for 4 hr, vacuum extraction (VE) at 65℃ for 4 hr under 0.08 ㎫, and fermentation of hot water extract (FHWE) using Lactobacillus buchneri. The antioxidant activities measured by radical scavenging activity, ferric-reducing antioxidant potential ability, and thiobarbituric acid reactive substance showed the highest values in vacuum extract. Also, the antioxidant activities of all extracts were higher than those of stevioside and rebaudioside at the same concentrations, known as the major active components in stevia. To define the antioxidative compound in stevia extracts, the total phenol content was measured, and it was shown that the highest contents of total phenolic compounds were in vacuum extract. These results suggest that the antioxidant activity of stevia extract was due to the phenolic compound components. In addition, vacuum extraction was the proper method to prepare stevia extract with higher antioxidant activity.
#stevia extract #antioxidant #hot water extract #fermentation #vacuum extract

Contents

Abstract
서론
재료 및 방법
결과 및 고찰
요약
감사의 글
문헌

References (29)

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1. [학술지(정기간행물)] - Fridovich I / 1978 / The biology of oxygen radicals / Science 201 : 875 ~ 880 google schola 2. [학술지(정기간행물)] - Bodaness RS / 1977 / Singlet oxygen as a mediator in the hematoporphyrin-catalyzed photooxidation of NADPH to NADP+ in deuterium oxide / J Biol Chem 252 : 8554 ~ 8560 google schola 3. [학술지(정기간행물)] - Aust SD / 1985 / Role of metals in oxygen radical reactions / J Free Radic Biol Med 1 : 3 ~ 25 google schola 4. [학술지(정기간행물)] - Trush MA / 1982 / Activation of pharmacologic agents to radical intermediates. Implications for the role of free radicals in drug action and toxicity / Biochem Pharmacol 31 : 3335 ~ 3346 google schola 5. [학술지(정기간행물)] - Halliwell B / 1992 / Free radicals, antioxidants and human disease / J Lab Clin Med 119 : 598 ~ 620 google schola

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김재훈 ,  성낙윤 ,  권선규 and others 6 한국식품영양과학회 학술대회발표집 2009 .11
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