Biochemical analysis and nutritional profile of Plesionika semilaevis, a deep-sea shrimp from the Arabian Sea

This study presents the first comprehensive examination of the nutritional profile of the deep-sea shrimp, Plesionika semilaevis from the Arabian Sea. The research compared the gender-related differences in proximate composition, mineral content, amino acids, and fatty acids composition. Notable distinctions were observed in carbohydrate, lipid, and fat levels, with females displaying significantly higher quantities than males. Palmitic, oleic acids and C20-22 n-3 fatty acid analogues, were the principal saturated, monounsaturated, and polyunsaturated fatty acids, respectively. Fatty acid profile exhibited substantial variations by sex and season with C20-22 n-3 fatty acid analogues being prominent during the pre-monsoon period in males, berried females, and non-berried females. Lower thrombogenicity and atherogenicity indices indicate that this shrimp species holds promise as a healthful dietary choice. Potassium is the most prevalent macro-mineral in P. semilaevis, followed by phosphorus while among micro-minerals, iron predominates, followed by zinc. The amino acid profile indicates the shrimps as an ideal protein-rich food with a well-balanced ratio of essential to non-essential amino acids. These findings offer valuable insights into the nutritional value of this deep-sea shrimp species, aiding in its utilization as a source of nutritious food.