Journal
BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY
Volume 48, Issue 3, Pages 397-401Publisher
INST TECNOLOGIA PARANA
DOI: 10.1590/S1516-89132005000300010
Keywords
astaxanthin; fed-batch process; Phaffia rhodozyma
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The effect of feeding methods on the production of astaxanthin by the yeast Phaffia rhodozyma ATCC 24202 was studied, using continuous and pulsed fed-batch processes and low cost materials as substrates (sugar cane juice and urea). In continuous fed-batch processes, a cellular astaxanthin concentration of 383.73 mu g/g biomass was obtained. But in pulsed fed-batch processes a reduction in the cellular astaxanthin concentration (303.34 mu g/g biomass) was observed. Thus the continuous fed-batch processes could be an alternative to industrial production of astaxanthin, allowing an increase in the biomass productivity without losses on astaxanthin production by the yeast.
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