논문 상세보기
pp.301-306
Vitamin K (phylloquinone) is an essential cofactor in the synthesis of active blood-clotting factors II, VII, IX and X. Deficiency of vitamin K leads to inadequate activity of these factors, resulting in bleeding. In this study, we investigated vitamin K1 content of agricultural products that are widely and specifically grown in Korea including 9 leaves and vegetables, 16 fruits, and 11 cereals and specialty crops. Vitamin K1 analysis of the agro-samples was by a validated, modified, reversed phase-HPLC method with fluorescence detection after post-column derivatization. The vitamin K1 content ranged from 1.83 to 682.73 μg/100 g in leaves and vegetables, 0.17 to 28.22 μg/100 g in fruits, and ND to 279 μg/100 g in cereals and specialty crops. Among the 36 samples, high content of vitamin K1 were found in Gugija (Lycium chinense Miller) leaves (average 682.73 μg/100 g) and Hansan ramie leaves (average 423.12 μg/100 g); however, mushroom, amaranth and Chinese artichoke showed no detectable levels. The results of ourstudy provide reliable vitamin K1 content of Korean grown agricultural products that expand nutritional information and food composition database.
재료 및 방법
1. 실험 재료
2. 표준용액 조제
3. 추출방법-용매 추출법
4. HPLC 조건
5. 분석방법의 검증
결과 및 고찰
1. 잎과 채소류의 비타민 K1 함량
2. 과일류의 비타민 K1 함량
3. 곡류 및 기타 농산물의 비타민 K1 함량
4. 분석방법의 검증
요 약
References
