The study compared the amount of vitamin C from local vegetable or the chemical name is ascorbic acid (vitamin Ascorbic acid) is dissolved in water and the body is unable to create a need for vitamin C from eating in. This project is the content of vitamin C from local vegetables. From the 7 types Including Vegetable Cha-om tomatoes Asiatic pennywort pumpkin coccinia grandis Tio and morning glory By weighing each kind of vegetables each 10 g the juice filter used for titration of acid concentration ascorbic acid (vitamin C) in a solution of vegetables Using starch as indicator. From the experiment, it is found that the vegetables with vitamin C content most Vegetable Cha-om. According with tomatoes, Asiatic pumpkin. Gourd vegetables tight and morning glory, respectively.
So eating vegetables in it have to fit. If eating too much may make a difficult and anemia of mental disorders. Therefore, this project is to study the determination of ascorbic acid in vegetables each type to find out any vegetables should brought to eat. enough that the body needs to get. The comparison of concentration of vitamin C as follows: Vegetable Cha-om concentrated 21.538 × 10-4 M Tomato concentration 6.7106 × 10-4 M Asiatic pennywort concentration 3.204 × 10-4 M pumpkin concentration of 3.382 × 10-4 M coccinia grandis concentration 2.67 × 10-4 M Vegetable. Tio concentration of 1.246 × 10-4 M and morning glory concentration 1.246 × 10-4 M.