DOI: 10.36347/sajb.2015.v03i09.006

Pages: 762-765

The aqueous and ethanol extracts of lyophilized cultures of Nostoc linckia isolated from Kukkarahalli lake, Mysore underwent phytochemical analysis wherein flavonoids, saponins, terpenoids, tannin and steroids were detected in the aqueous and ethanol extracts while alkaloids were not observed in either extract. Phycobiliproteins were detected in the aqueous extract only while carotenoids and chlorophyll were detected in ethanol extract only. The total protein content, total free amino acids, total carbohydrate content, total flavanoid content, total phenolic content and total ascorbic acid content in aqueous extract was found to be 44.42 μg BSAE/ mg extract, 42.22 μg GE/ mg extract, 18 μg GlcE/mg extract, 6.01 μg RE/ mg extract and 9. 77 μg GAE/ mg extract respectively, while the ethanol extract values were 2.46 μg BSAE/ mg etract, 6.17 μg GE/ mg extract, 4.5 μg GlcE/mg extract, 1.14 μg RE/ mg extract and 0.992 μg GAE/ mg extract respectively. Total ascorbic acid content was 20μg/ mg extract in both aqueous and ethanol extracts. The phycoerythrin, phycocyanin and allophycocyanin content were 0.108 mg/ml, 0.032 mg/ml and 0.006 mg/ml respectively while chlorophyll a and caroteneoid content were 1.203 mg/ml and 0.723 mg/ml respectively. The aqueous extraction was more efficient process than ethanol extraction of value added compounds from N. linckia.