Chn content and bioactive potentials of gracilaria corticata (j.agardh) j. Agardh from surathkal beach, karnataka

Gracilaria corticata, a red seaweed collected from Surathkal beach, Karnataka India was studied for the estimation of Carbon, Hydrogen and Nitrogen using CHN analyzer whose percentage was found to be 36 ±0.64%, 6.47 ±0.09% and 4.99± 0.055 respectively. The mineral content Na and K of G.corticata was found to be12.84mg and 5.34mg respectively. The values of elements such as Zn, Fe, Cu, Cr, Pb and Ni were determined spectrometer and their concentration was found to be 12.06±0.004, 4.88±0.15, 4.77 ±0.01, 6.69±0.002, 0.193±0.001 and 0.088±0.004 in ppm respectively. The pigments such as chlorophyll a, chlorophyll b, and Phycobilins were also estimated. The protein content of extracts was determined out of which methanol extract showed higher value of 23.35 ± 0.21% dry weight (dw) and lowest was with water extract of G. corticata (14.23± 0.01% dw). Also the extract of G. corticata was subjected to determine the carbohydrate content in which water extract was to be highest (6.47±0.3) % dw followed by ethanol (4.91±0.03) % dw, while the lowest carbohydrate value was found in chloroform extract (2.1 ± 0.03) % dw.