[Determination of fatty acids compositions and contents in Chinese mitten crabs by gas chromatography].

Determination of fatty acid compositions and contents in Chinese mitten crabs is of great significance to evaluate its nutritional value and quality. However, in the face of a wide range of fatty acid extraction and methyl esterification reagents, the measurement results are uneven, and it is difficult to accurately quantify the rich fatty acids in Chinese mitten crabs. In this paper, four kinds of oil extraction reagents and two kinds of methylating reagents, were investigated.