Enhancement of Antioxidative Activity of Codonopsis lanceolata by Stepwise Steaming Process
| Autor: | Yong-Chang Seo, Choong Je Ma, Chi-Ho Song, Hyeon-Yong Lee, Do-Un Kim, Woon-Yong Choi, Choon-Geun Lee, Jae-Youn Chung, Dong-Sik Park, Hee-Chul Chung |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
chemistry.chemical_classification
Antioxidant biology DPPH medicine.medical_treatment Flavonoid Steaming food and beverages Pharmaceutical Science Plant Science Phenolic acid biology.organism_classification Biochemistry Genetics and Molecular Biology (miscellaneous) chemistry.chemical_compound chemistry Vanillic acid medicine Organic chemistry Codonopsis lanceolata Food science Gallic acid Agronomy and Crop Science |
| Zdroj: | Korean Journal of Medicinal Crop Science. 20:238-244 |
| ISSN: | 1225-9306 |
| Popis: | In general, stepwise hot steaming process is known to be effective in improving its biological activities; however, not much employed in processing Codonopsis lanceolata due to its hardness. In this study, C. lanceolata was first pretreated with warm water at and for two hours, then steamed for 3 hours. Antioxidant activities of 70% ethanol extracts were compared with the extract from the water solvent: 41.58% vs 8.98% of DPPH radical scavenging activity in adding of steamed extract and water extract, respectively. Reducing power of steamed and fresh C. lanceolata were also measured as 1.39 and 0.71. Total poly phenolic of the steamed extract was estimated as 12.11mg/g, compared to 3.98mg/g fresh C. lanceolata. Total flavonoid contents were also obtained as 11.48mg/g, compared to 7.11mg/g of fresh C. lanceolata. In comparing phenolic acids profiles in the extract, in general higher amounts of gallic acid, trans-ferulic acid, vanillic acid were obtained possibly by easy release of active components during thermal processing, which results in better antioxidant activities than that of water extract. This findings can also be supported by result that the ethanol extract showed better activities than the water extract. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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