Abstract
1. The alkali soluble protein isolated from the six species of marine algae. Main component of algae protein was consisted of alkali soluble proteins.
2. Higher contents of acidic amino acids, glycine, alanine, valine, leucine and lower contents of tryptophane, threonine, lysine were detected in the alkali soluble proteins. No cystine was detected in the all species. Red algae indicated high contents of proline.
3. Alkali soluble protein in Eisenia bicyclis has fairly good concentration of amino acids as similar as egg protein. Comparing with egg albumin, the most alkali soluble protein indicate as similar amino acids composition except lower amounts of methionin, serins and lysine. 4. The index of chemical score of alkali soluble protein in six species were caluculated from 54 to 63.