떡 재료 식물인 떡쑥, 모시, 쑥 및 절굿대 추출물의 생리활성 효과

Abstract

This study investigated the physiological activity of cottonweed, ramie, mugwort, and globe thistle as material for making Tteok and determined the total phenolic compound and flavonoid contents, and the DPPH and nitrite radical scavenging activities using different extraction methods (hot water, ethanol, and methanol). The amount of total phenolic compounds in the mugwort material increased from 61.0-214.2 mg/L at a concentration of 1,000 mg/L irrespective of the standard substance and extraction method. The total content of flavonoids was the highest in mugwort compared to the other Tteok materials and the extraction methods of hot water, methanol, and ethanol resulted in 29.1, 17.2, and 13.8 mg/L flavonoid content, respectively. At the extracting concentration of 1,000 mg/L, the DPPH radical scavenging activity of the extracts from globe thistle, cotton weed, and mugwort was not significantly different at 76.7-77.0 mg/L, while ramie showed the lowest activity at 70.7 mg/L. When the extracting concentration was 1,000 mg/L, the nitrite radical scavenging activity of hot water and ethanol mugwort extracts increased the most by 25.8% and 29.0%, respectively. However, that of the methanol extract of globe thistle decreased by 21.0%. These results suggest that making Tteok by use may provide useful information.