Science Lab - Phycocyanin

Introduction\nPhycocyanin(PC) is a blue photopigment used for many an(prenominal) applications, for example as a natural food colorant in the food industry (e.g. M&M and Gatorade). This pigment is cleard by a natural variant of the red micro algae G. Sulphuraria (strain 074G). This kind of algae washbowl grow in assorted situations. It can produce in the blue-blooded, on assorted organic compounds and at various Ph. values. Phycocyanin is rear only in cyanobacteria, Cryptophyceae and Rhodophyceae, is among the most primal substances produced uniquely in cyanophyte and microalgae cultures. The commercial issue of PC is done in phototrophic cultures of the cyanobacterium Spirulina plantensis. The goose egg source for this is sun vindicated. Because these cultures depend on the sun dispirit, or externally supplied light it is very hard to carapace up these cultures without losing productivity. This is because the surface sector to volume ratio decreases at increasing scale and the light paths inside the cultures get longer. This causes self-shading and dark and this develops unproductive zones. (Eriksen J. K., 2005)\nThe algae Galdieria Sulphuraria, can grow photo-, mixo and heterotrophically in impregnable acidic springs and can all the same so produce PC. As told in front the strain 047 G of G. sulphuraria does even so when it is grown heterotrophically in darkness. (Schnarrenberger, 1995) High invests of biomass which is contingent in high-cell-density fed-batch cultures of G. sulphuraria 074G compensates for the relative emit PC concentration in the algae; 3-4 mg g-1 of biomass teetotal weight in likeness to the phototrophic Spirulina platensis; 60-74 mg g-1 dry weight. Altough on that point is a big residuum between the amount of PC per cell the total production of G. Sulphuraria 074G is 1.7-13.6 times higher than the rate of PC production found in outdoor S. platensis cultures. (Materassi, 1997) quest those findings we are going to experience whether the production of PC by G. Sulphuraria 074G is appl...