According to determining, orange skin contains thick protein 8. 1 % , crude fat 5. 1 % , and the microelement such as iron, magnesian, manganese, zinc.

• 据测定，桔皮含粗蛋白8．1%25、粗脂肪5．1%25，以及铁、镁、锰、锌等微量元素。