The Amion Acid Composition of Photosynthetic Bacterial Cells

The amino acid composition of the hydrolysate of photosynthetic bacteria, Rhodo-pseudomonas capsulatus, was analyzed automatically by using the amino acid analyzer and it was found that in the bacteria, histidine, proline, alanine, valine, methionine, tyrosine and tryptophan were present in larger amounts than in Chlorella vulgaris and yeast, Saccharomyces anomalus. Especially, the content of methionine was much higher; 5 times more than chlorella and 3 times more than yeast. This work was supported by the grants from the Ministry of Education.