关键词: 林蛙, 氨基酸, 脂肪酸, 聚类分析, 主效成分分析

Abstract: In order to make use of nutritive value of Rana chensinensis, the study determined contents of amino acids and fatty acids in frog meat. The results showed that leucine is 15.69g/100g, and lysine is 7.20 g/100g in uterine tube of Rana chensinensis. Lysine is 7.20 g/100g, and tyrosine is 90.5 mg/100g in frog meat. The contents of unsaturated fatty acids is 124.36 mg/g in frog eggs and 79.8 mg/g in frog. The contents of timnodonic acids and docosahexenoic acids is 12.41 mg/g in frog eggs, and is 7.2 mg/g in frog. The results of hierarchical cluster analysis showed that the distribution of the amino acids were similar between the ovigerous frog and frog, frog eggs and frog meat, whole frog and uterine tube of Rana chensinensis. The principal component is frog skin in the contents of amino acids. The principal component is frog meat in the contents of fatty acids.

Key words: Rana chensinensis, amino acids, fatty acids, hierarchical cluster analysis, principal components analysis