우리들의 식이중에 함유되어 있는 플라보노이드 화합물들이 니트로소화합물의 생성에 미치는 영향을 알아보기 위하여 생체내에서 일어나는 니트로소화 과정을 아질산염, 프로린과 시료를 동시에 투여하여 생성된 니트로소프로린 함량을 시험관 및 생체조건하에서 HPLC로서 측정하였다. 그 결과, 잘 알려진 ascorbic acid, KSCN과 더불어 catechin, chlorogenic acid, morin, luteolin, luteolin-7-O-glucoside, naringenin 등은 아질산염 소거에는 상당한 효과가 있는 것으로 나타났으나, 니트로소프로린 생성에 대해서는 ascorbic acid와 chlorogenic acid를 제외한 나머지 화합물들은 거의 영향을 미치지 않거나 오히려 그 생성을 촉진시키는 것으로 나타났다.
Some compounds including flavonoids were tested as scavenger of nitrite which is believed to participate in the formation of N-nitroso compound. Many were found to be potent scavengers and the most potent ones were ascorbic arid, potassium thiocyanate, chlorogenic acid, catechin, morin, luteolin, luteolin-7-glucoside, and naringenin. To evaluate the influence of the above compounds on the endogenous formation of N-nitroso compound, the amount of nitrosoproline (NPRO) was examined by co-incubation of nitrite, proline, and test compounds at various concentrations. The analysis of NPRO by High Performance Liquid Chromatography (HPLC) was newly developed. Most compounds except ascorbic acid and chlorogenic acid were found to be no effects or activatory effects on NPRO formation. From the results obtained, it was suggested that most flavonoids which are contained in our customary diets were not associated with the inhibition of NPRO formation.
