BIOCHEMICAL FEATURES OF ROSA ROXBURGHII TRATT FRUIT

2. The amount of vitamin C and vitamin P in Rosa Roxburghii Tratt Fruit

Rosa Roxburghii Tratt Fruit has a high content vitamin C and P. The content of vitamin C of Rosa Roxburghii Tratt Fruit flesh per 100 gram varied between 794 ~ 2391 mg, which was fifty time as much as that of Mandarin orange and nine times as much as that of yangtao. Rosa Roxburghii Tratt Fruit has much more Vitamin C than other kinds of fruit such as Grape Fruit, Apple, Pear and Cimei. Rosa Roxburghii Tratt Fruit has higher content vitamin P than general vegetables and fruits. The vitamin P content in Rosa Roxburghii Tratt Fruit per 100 gram flesh varied from 5981 to 12895 mg.. Rosa Roxburghii Tratt Fruit has a abundance of vitamin C and P. By consuming half a fruit will provide an individual with the Required Daily Intake of Vitamin C and P.

3. Effect of various kinds of factors on the content of vitamin C and P in Rosa Roxburghii Tratt Fruit.

Rosa Roxburghii Tratt Fruit is a special kind of fruits in South Western China. Although Rosa Roxburghii Tratt Fruit is a rich source of vitamin C and P, maturity, size and weight of Rosa Roxburghii Tratt Fruits may have effects on the content of vitamin C and P of Rosa Roxburghii Tratt Fruit. Our study showed that vitamin C content was negatively related to both size and weight. On the contrary, vitamin P content was positively related to the size and the weight. The ripe Rosa Roxburghii Tratt Fruits had higher content vitamin C and P than unripe fruits. There was no relationship between the maturity and the size as well as the weight and the size.

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