Some biological activities such as an electron donating capacity, the contents of total polyphenol compounds and flavonoids, fibrinolytic activity and α-glucosidase inhibitory activity have been detected in hot water extracts of Ligularia fischeri and Angelica gigas Nakai. To increase the usefulness of the functional ingredients for prevention and improvement of some metabolic disorders, ethanol-treated hot water extracts of Angelica gigas Nakai were prepared. A hot water extract of Ligularia fischeri has 92% of electron donating capacity, 39.4 mg/g of total polyphenol compounds, 24.8 mg/g of flavonoids and 29.8% of α-glucosidase inhibitory activity, but no fibrinolytic activity. A hot water extract of Angelica gigas Nakai has 94.7% of electron donating capacity, 5.8 mg/g of total polyphenol compounds, 2.6 mg/g of flavonoids, 0.48 plasmin units of fibrinolytic activity and no α-glucosidase inhibitory activity. However, with partial purification using cold ethanol treatment, the α-glucosidase inhibitory activity of Angelica gigas Nakai was increased to 70.5%. Thus, we expected a more useful effect with the use of the addition of a cold ethanol-treated Angelica gigas Nakai extract. The L, b values of cold buckwheat noodles using a mixture of 0~3% of Ligularia fischeri powder and 0.5% of an ethanol-treated hot water extract of Angelica gigas Nakai were decreased with the addition of an increasing amount of Ligularia fischeri powder. Among the mechanical qualities, only adhesiveness was significantly higher in 3% Ligularia fischeri noodles. From sensory evaluation data, it was determined that these two functional ingredients did not ruin the color, texture, and overall acceptance of the cold buckwheat noodles. A higher amount of the extracts improved the quality of the product with little added cost.

들깨 및 메밀 건경의 물 추출액을 피 및 배추에 처리하여 발아 및 초기생장의 억제 양상을 본 결과 1. 두가지 추출액 모두 피와 배추의 발아를 억제하였으며 메밀 추출액이 들깨 추출액보다 심하였고 피보다는 배추에 억제효과가 켰다. 2. 발아후 초기 생장도 위와 같은 경향이나 발아억제보다는 생장 억제 효과가 약간 적은 영향이었다. 3. 이들 추출액은 지상부 생장보다는 뿌리 생장에 피해를 더 주는 경향이며 들깨 추출액보다 메밀 추출액이 더 심한 편이었다.