Analysis and comparison of nutrient component on Gonggan and navel orange

The main nutrient component such as water,ash,total sugar,reducing sugar,total acid,pectin,protein,fat,crude fiber,VC and mineral elements such as Cu,Zn,Mn and Fe in Gonggan were analyzed and compared with those in navel orange. The result showed that the nutrient ingredients were similar in these two citrus fruit,but the water in Gonggan was higher than that in navel orange,the crude fiber in Gonggan was about half of that in navel orange,and the sugar acid ratio of Gonggan was about two times of that in navel orange. Gonggan and navel orange were both rich in VC and mineral elements such as Cu,Zn and Fe.