'Science Lab - Phycocyanin'

' access\nPhycocyanin(PC) is a blueing photopigment used for galore(postnominal) applications, for example as a indispensable food colorant in the food manufacture (e.g. M&M and Gatorade). This pigment is constructd by a native mutant of the blushing(a) micro alga G. Sulphuraria (strain 074G). This kind of alga mountain arise in diverse situations. It can urinate in the distressing, on variant natural compounds and at various Ph. values. Phycocyanin is found whole in cyanobacteria, class Cryptophyceae and Rhodophyceae, is among the most authorised substances produced uniquely in cyanobacterial and microalgae cultures. The commercial message yield of PC is done in phototrophic cultures of the cyanobacterium Spirulina plantensis. The energy character for this is sunlight. Because these cultures depend on the sunlight, or externally supplied light it is actually hard to surmount up these cultures without losing productivity. This is because the fall out area to ti dy sum ratio decreases at increasing denture and the light paths indoors the cultures get longer. This causes self-shading and dark and this develops unproductive zones. (Eriksen J. K., 2005)\nThe algae Galdieria Sulphuraria, can perplex photo-, mixo and heterotrophically in inviolable acidic springs and can still produce PC. As told sooner the strain 047 G of G. sulphuraria does even so when it is grown heterotrophically in darkness. (Schnarrenberger, 1995) High grade of biomass which is possible in high-cell-density fed-batch cultures of G. sulphuraria 074G compensates for the relative humiliated PC concentration in the algae; 3-4 mg g-1 of biomass modify weight in comparison to the phototrophic Spirulina platensis; 60-74 mg g-1 dry weight. Altough thither is a super difference in the midst of the amount of PC per cell the marrow deed of G. Sulphuraria 074G is 1.7-13.6 generation higher than the regulate of PC production found in outdoor S. platensis cultures. (Mate rassi, 1997) by-line those findings we are waiver to look whether the production of PC by G. Sulphuraria 074G is appl... '