Wenling high orange fruit is rich in nutrients and contains many essential nutrients for human body. Fruit juice contains total sugar 5.46%~7.59%, reducing sugar 2.8%~3.5%, sucrose 2.66% ~ 4.09%, starch 0. 13%~0. 19% and crude fiber 0.05% ~ 0.66%. The content of vitamin C is 27 1.6~376.9 mg/kg. The carotenoid content is 1~ 1.35 mg/L, and it contains mineral elements such as calcium, phosphorus, zinc and iron. The content of protein in the pulp of Wenling High Orange is 0.27%~0.58%, and it contains 17 kinds of amino acids, including 7 kinds of essential amino acids, accounting for 18.8% of the total amino acids. Among the non-essential amino acids in human body, aspartic acid and glutamic acid are abundant, which can promote urinary circulation and cell renewal. The content of amino acids in the peel of Wenling Gaocheng orange is 2.4 times that of the pulp, and the content of essential amino acids accounts for 30% of the total amino acids.

At the same time, Wenling High Orange is also rich in limonin, flavonoids and other bioactive substances, including four limonin. The total content of orange peel is as high as 2070.86 μ g/kg, which is significantly higher than that of Huyou (869.06 μ g/kg), Wendan (45.96 μ g/kg) and other citrus fruits. Among them, limonin and nomilin can activate the activity of glutathione transferase, thus inhibiting the carcinogenic effect of chemical carcinogens. Lemonin analogues also have anti-malaria, analgesic, anti-inflammatory, hypnotic, anti-anxiety and anti-AIDS activities. At present, patented products of limonin analogues, functional foods and beverages have appeared in Japan and the United States.