Nutritional Assessment on Brown Macro algae Lobophora variegata from GOMBR, Tamil Nadu, India

Abstract

Nutrition is very important to all living organisms and human beings obtained range of nutrition from different resources. Despite this fact, marine natural resources provide unique nutrition to human society. Based on that reason, the present study was conducted to analysis nutritional profile of brown seaweed Lobophora variegata (J.V. Lamouroux) Womersley ex. Oliveira collected from the Gulf of Mannar Biosphere, Tamil Nadu, India. The proximate composition (moisture, ash, protein, lipid, carbohydrate, and dietary fiber, mineral, amino acid , fatty acid and antioxidant activity (2-dipheny- 1 – picrylhydrazyl (DPPH) and Reducing power assays) of L.veriegata. The result indicated that the maximum concentration of protein (34.09 ± 0.95 mg/100g), carbohydrate (28.81 ± 0.07 mg/100g) and total dietary fiber (2.53 ± 0.037 mg/100g) soluble fiber (1.28 ± 0.07 mg/100g) and insoluble fiber (1.50 ± 0.07 mg/100g) recorded in the brown algae L. variegata. The mineral content of L. variegata exhibits high amount of minerals, such as Magnesium (1712.6 ± 16.75 mg/100g DW), Phosphorus (1477.3 ± 4.49 mg/100g DW), Potassium (1078.3 ± 6.23 mg/100g), Sodium (916.6 ± 4.47 mg/100g), Iron (913.6 ± 4.49 mg/100g DW), Zinc (813.6 ± 12.47 mg/100g) and Copper (427.3 ± 5.24 mg/100g DW). Fatty acid profile of docosahexaenoic acid (5.89 ± 0.021mg) and palmitic methyl ester (5.33 ±0.09 mg) were predominantly found in L. variegata. Finally the amino acids are essential (12.43±0.04 mg/g) and non essential (16.99±0.05 mg/g) respectively. DPPH scavenging of Ic50 (175.41µg /ml,) and reducing powder (186.26µg /ml) respectively. According to the current findings, brown seaweed, L. variegata, appears to be a viable marine natural resource for generating innovative nutraceutical and antioxidant products.