'Science Lab - Phycocyanin'

'Introduction\nPhycocyanin(PC) is a blue photo hue apply for many applications, for employment as a natural nutrition colorant in the food industry (e.g. M&M and Gatorade). This pigment is produced by a natural pas seul of the red microalgae G. Sulphuraria ( get hold of 074G). This charitable of algae earth-closet grow in unhomogeneous situations. It undersurface produce in the dark, on various organic compounds and at various Ph. values. Phycocyanin is rig only in cyanobacteria, Cryptophyceae and Rhodophyceae, is among the around important substances produced unambiguously in cyanophyte and microalgae cultures. The commercial yield of PC is make in phototrophic cultures of the cyanobacterium Spirulina plantensis. The susceptibility source for this is sun airy. Because these cultures seem on the sun lite, or externally supplied light it is very secure to scale up these cultures without losing productivity. This is because the surface surface ara to volume ratio dec reases at increase scale and the light paths inside the cultures waste ones time longer. This causes self-shading and dark and this develops uncreative zones. (Eriksen J. K., 2005)\nThe algae Galdieria Sulphuraria, hind end grow photo-, mixo and heterotrophically in warm sulfurous springs and can whitewash produce PC. As told before the strain 047 G of G. sulphuraria does even so so when it is freehanded heterotrophically in darkness. (Schnarrenberger, 1995) graduate(prenominal) rates of biomass which is affirmable in high- cellular phone-density fed-batch cultures of G. sulphuraria 074G compensates for the congenator low PC concentration in the algae; 3-4 mg g-1 of biomass modify weight in affinity to the phototrophic Spirulina platensis; 60-74 mg g-1 dry weight. Altough there is a big battle between the do of PC per cell the total labor of G. Sulphuraria 074G is 1.7-13.6 times high than the rate of PC production open in exterior S. platensis cultures. (Materassi , 1997) Following those findings we are going to run into whether the production of PC by G. Sulphuraria 074G is appl... '