Kenojeinin I, antimicrobial peptide isolated from the skin of the fermented skate, Raja kenojei.

An antimicrobial peptide was purified from fermented skate skin extract using the solid-phase extraction and separation on HPLC reversed-phase chromatography. Amino acid sequence of the purified peptide (Peak A) having an antimicrobial activity revealed the presence of many cationic residues of the total 28 amino acids. Its molecular mass was found to be 3059 Da.

Nutritional composition and microflora of the fresh and fermented skate (Raja Kenojei) skins.

The proximate compositions of fresh and fermented skate skin were each 75.95% and 74.5% moisture, 22.