| Author: | Mehreen Tabassum |
| Roll: | NFH2002029F |
| Batch | 15th batch |
| Session | 2019-20 |
Abstract:
In the face of persistent malnutrition and micronutrient deficiencies in developing countries like Bangladesh, the exploration of non-conventional marine resources offers a promising avenue toward sustainable nutritional security. This study aimed to evaluate the nutritional composition, safety, and public health potential of the non-conventional crustacean Oratosquillina perpensa (mantis shrimp), a locally abundant but underutilized by-catch species along the Bay of Bengal. Both edible and non-edible parts were evaluated using standard AOAC and ICP-MS methodologies to determine proximate composition, fatty and amino acid profiles, mineral content, and heavy metal contamination. The edible portion was found to be a rich source of high-quality protein (10.29 ± 0.34%), lipids (2.78 ± 0.13%), essential amino acids notably Leucine (0.86 ±0.13 g/100g) and Methionine (0.32±.03 g/100g), and omega-3 polyunsaturated fatty acids (225.46 ± 31.87 mg/kg), including EPA and DHA, supporting its role in combating inflammation, enhancing heart health, and promoting cognitive development. The findings indicated that mantis shrimp’s PUFA/SFA (0.73) and ratio fell below the range stated as beneficial (0.45) for human diets. The non edible parts, traditionally discarded, demonstrated exceptional mineral content, particularly Calcium (48755.96± 195.15 mg/kg) and Phosphorus (8933.74± 755.69 mg/kg), underscoring their suitability for use in functional foods, nutraceutical formulations, and industrial applications. Together, these findings support the full utilization of mantis shrimp biomass, promoting waste reduction and enhanced nutritional yields. A 100g serving of the edible portion provides substantial contributions to the Recommended Nutrient Intakes (RNI) for protein, zinc, iron, calcium, and DHA for children and women, indicating its role as a complementary food. However, arsenic and cadmium levels in edible tissues slightly exceeded FAO/WHO thresholds, necessitating regular contaminant monitoring and the development of safe processing methods. As a non-conventional fishery resource, O. perpensa holds considerable promise for blue economy development, food diversification, and public health improvement, especially in coastal communities reliant on marine foods. Future research should investigate seasonal nutrient variability, the bioavailability of key micronutrients, product development from non-edible biomass, and consumer acceptance.