Effect of feeding methods on the astaxanthin production by Phaffia rhodozyma in fed-batch process

• Autor(a) principal: Moriel,Danilo Gomes
• Data de Publicação: 2005
• Outros Autores: Chociai,Miriam Blumel, Machado,Iara Maria Pereira, Fontana,José Domingos, Bonfim,Tania Maria Bordin
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Archives of Biology and Technology
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000300010
• topic: Astaxanthin; fed-batch process; Phaffia rhodozyma

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 µg/g biomass was obtained. But in pulsed fed-batch processes a reduction in the cellular astaxanthin concentration (303.34 µg/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.