J Korean Diet Assoc.
1998 Feb;4(1):14-19.
Antioxidant Effects on various solvent extracts from Onion Peel and Onion Flesh
- Affiliations
-
- 1Department of Food and nutition Graduate School, Myungji University, Korea.
Abstract
- This study was designed to investigate the role of onion as a natural antioxidant. Onion was distinguished as yellow onion peel and onion flesh. Onion samples were extracted with 5 different kinds of solvents such as water, 70% ethanol, 99.9%ethanol, 99.9% methanol, and 96% butanol in order to select optimal extraction solvents, In this part of study linoleic acid was used s an model system for the purpose of determining the antioxidant activities. The optimal extraction rate of various solvents containing onion samples was determined by measuring extraction yield, electron donating ability(EDA), thiobarbituric acid(TBA), and thiocyanate, which are common methods for measuring activity. As a result 70% ethanol was shown as the most effective solvent.
Keyword
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- Effect of Dried Powders or Ethanol Extracts of Onion Flesh and Peel on Lipid Metabolism, Antioxidative and Antithrombogenic Capacities in 16-Month-Old Rats
- Effects of onion peel water extracts on swimming endurance in rat
- Effect of onion peel extract supplementation on the lipid profile and antioxidative status of healthy young women: a randomized, placebo-controlled, double-blind, crossover trial
- Effect of onion (Allium cepa L.) peel extract on natural killer cell and cytokines in a randomized, doubleblind, placebo-controlled trial
- Characteristics of Vegetable Juice Fermented with Lactobacillus plantarum MKHA15 and Leuconostoc mesenteroids MKSR
