| To clarify the nutritional components of Acer truncatum seed kernel, the contents of oil and crude protein in Acer truncatum seed kernel, the amino acid composition and mineral element composition of Acer truncatum seed kernel meal, the composition of total fatty acids, Sn-2 fatty acids and tocopherol content in Acer truncatum seed kernel oil were analyzed. The results showed that the contents of oil and crude protein in Acer truncatum seed kernel were 43.7% and 35.13% respectively. Acer truncatum seed kernel meal contained 17 kinds of amino acids, of which 7 kinds of essential amino acids accounted for 33.78%, and it was an ideal protein resource. Acer truncatum seed kernel meal was rich in mineral elements, with K content in major elements of 6 372.8 μg/g, and Na content of 346.5 μg/g, belonging to high potassium and low sodium food. The Mn content in trace elements was higher(68.1 μg/g), and no heavy metal element was detected. Acer truncatum seed kernel oil was mainly composed of 12 kinds of fatty acids, and the content of nervonic acid reached 5.89%. Polyunsaturated fatty acids, mainly linoleic acid and α-linolenic acid, were mainly distributed in Sn-2 position. The total contents of tocopherols in Acer truncatum seed kernel oil was 1 230.70 mg/kg, in which γ- tocopherol content was the highest, reaching 792.62 mg/kg. Acer truncatum seed kernel is rich in nutrition and can be used as an important source of nervonic acid, tocopherol and amino acids. Acer truncatum seed kernel oil can be used as a health edible oil. |
