Science Lab - Phycocyanin

doorway\nPhycocyanin(PC) is a blue photo rouge utilize for many applications, for example as a immanent aliment colorant in the food intentness (e.g. M&M and Gatorade). This pigment is produced by a natural mutant of the red microalga G. Sulphuraria (strain 074G). This conformation of algae layabout plow in various situations. It plunder produce in the dark, on various organic compounds and at various Ph. values. Phycocyanin is found only(prenominal) in cyanobacteria, Cryptophyceae and Rhodophyceae, is among the or so important substances produced uniquely in cyanobacterial and microalgae cultures. The commercial payoff of PC is done in phototrophic cultures of the cyanobacterium Spirulina plantensis. The energy source for this is sunlight. Because these cultures matter on the sunlight, or externally supplied light it is very sound to crustal plate up these cultures without losing productivity. This is because the push through area to volume dimension decreases at i ncreasing scale and the light paths inside the cultures derive 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 warm acidic springs and can still produce PC. As told before the strain 047 G of G. sulphuraria does even so when it is self-aggrandizing heterotrophically in darkness. (Schnarrenberger, 1995) High judge of biomass which is possible in high-cell-density fed-batch cultures of G. sulphuraria 074G compensates for the sexual relation low PC submergence in the algae; 3-4 mg g-1 of biomass ironic weight in comparison to the phototrophic Spirulina platensis; 60-74 mg g-1 dry weight. Altough there is a wide-ranging difference between the tot up of PC per cell the natural fruit of G. Sulphuraria 074G is 1.7-13.6 times high than the rate of PC production found in outside S. platensis cultures. (Materassi, 1997) Following those findings we ar e exhalation to look whether the production of PC by G. Sulphuraria 074G is appl...