Gracilaria spp. is useful algae which can be used as human food and animals. The amount of protein, fat, fiber, ash and carbohydrates were 10, 1.3, 4.5 and 58 grams per 100 grams dry weight, respectively, It also provides total power of 265 kilo calories per 100 grams. Other products pigment can be extracted for use as a food colourants. There reports of extracting pigments from Gracilaria crassa using various solvents is phosphate buffered distilled water and sea water as well as keeping in substances different combination of sodium chloride 20% is extracted from phosphate buffer pH 6.8 is suitable for storing phycobiliproteins in the long term. The loss of 50 percent can store up to 65 days at 0 ± 5 ° C