PURPOSE: A roasted red pepper leaf tea extract having anti-diabetic activity is provided to obtain high activity of AGI, a saccharolytic enzyme inhibitor to control increases in blood sugar levels.CONSTITUTION: A roasted red pepper leaf tea extract having anti-diabetic activity is obtained by the following steps: extracting roasted red pepper leaf tea with ethanol suspending the obtained extract with distilled water, fractionating the mixture with dichloromethane and ethanol, and decompress-concentrating the mixture using an organic solvent for primary active-fractionating suspending the first active fraction before fractionating with the organic solvent, and decompress-concentrating the mixture for secondary fractionating fractionating the second active fraction using ethyl acetate and methanol with the silica gel column chromatography to obtain final fractions and re-crystallizing the obtained fractions.COPYRIGHT KIPO 2012본 발명은 고추잎 덖음차 분말을 에탄올로 추출하고, 이 추출물을 감압 농축하고 분획한 후에 재결정(recrystallization)을 진행하여 추출된 항 당뇨 활성을 가진 고추잎 덖음차 추출물에 관한 것으로, 고추잎 덖음차에서 추출한 천연 추출물에 의해 acarbose, voglibose와 같은 화학적 당뇨병 치료제 대신에 부작용없이 더욱 안전하게 차를 통해 수시로 복용함으로써 당뇨병을 예방 및 치료할 수 있다.
