Collagen was extracted from different species of grass carp and used to study amino acid compositions and thermal stability. The result of a correlation analysis between the amino acid compositions and denaturation temperatures of various collagens showed that the degree of hydroxylation of proline, the content of alkaline amino acids, polar amino acids with charge, and total polar amino acids were positively correlated with the denaturation temperature for collagen. However, the content of imino acids and nonpolar amino acids showed an inverse...
