동백잎의 생육지역에 따른 페놀성 화합물의 함량 비교

Comparison of the Phenolic Contents of Camellia japonica Leaves Collected in Different Regions

The content of phenolics in Camellia japonica leaves (CJL) collected in different regions (Wando and Jangheung Counties) was compared. CJL MeOH extracts after acidic hydrolysis were analyzed by ODS-HPLC (254 nm) and the contents of five phenolics (gallic acid, 3,4-dihydroxybenzoic acid, 4-hydroxybenzoic acid, quercetin, and kaempferol) were calculated using an external standard method. The content of quercetin was higher in the Wando samples (167.49 ± 26.67 mg/100 g dry wt.) than in the Jangheung samples (98.48 ± 10.38 mg/100 g dry wt.). The contents of kaempferol and 4-hydroxybenzoic acid showed a higher tendency in the Wando samples than in the Jangheung samples. On the other hand, gallic acid and 3,4-dihydroxybenzoic acid were detected at similar levels. Therefore, CJL grown in coastal areas may more beneficial constituents than those grown in inland area.