추출방법에 따른 개민들레 꽃의 항산화 활성 분석
Effect of Extraction Condition on the Antioxidant Activity of Hypochoeris radicata Flower Extracts
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초록
The aim of the study to optimize the extraction yield and the radical scavenging activity from the Hypocheris radicata flower using four different extraction protocols was carried out. Fresh part hot-water extract, fresh part 70% ethanol extract, dried part hot-water extract and dried part 70% ethanol extract were used for comparison purpose. We evaluated the total phenolic and flavonoid contents in test samples, and antioxidant activity by using 1,2-diphenyl-2-picryl hydrazyl(DPPH) and Ferric reducing antioxidant power(FRAP). The fresh part hot-water extracts displayed the strongest DPPH and FRAP activity and highest total phenolic and flavonois contents. Moreover, the fresh of hot-water extracts had the highest level of caffeic acid.
Abstract
The aim of the study to optimize the extraction yield and the radical scavenging activity from the Hypocheris radicata flower using four different extraction protocols was carried out. Fresh part hot-water extract, fresh part 70% ethanol extract, dried part hot-water extract and dried part 70% ethanol extract were used for comparison purpose. We evaluated the total phenolic and flavonoid contents in test samples, and antioxidant activity by using 1,2-diphenyl-2-picryl hydrazyl(DPPH) and Ferric reducing antioxidant power(FRAP). The fresh part hot-water extracts displayed the strongest DPPH and FRAP activity and highest total phenolic and flavonois contents. Moreover, the fresh of hot-water extracts had the highest level of caffeic acid.
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