Study on the Effect of Washing with Water and Detergent on the Vitamin C Content in Fruit and Vegetable

세정 및 세제사용이 야채 및 과일의 비타민 C 함량에 미치는 영향

This study was performed to investigate the effect of washing with water and detergent on the vitamin C content in strawberry and perilla leaf. Vitamin C was extracted with the solution of metaphosphoric acid and quantitated by high performance liquid chromatograph (HPLC). There was no significant difference of vitamin C content between the washing with distilled water and tap water. Three available detergents reduced the vitamin C content of samples to 92.5%, 92.2% and 78.5%, respectively. The content of vitamin C in samples was decreased by increasing the concentration of detergent and washing time.