A comparative study of glycerol and sorbitol as co-substrates in methanol-induced cultures of Pichia pastoris: temperature effect and scale-up simulation

Julio Berrios, María Olga Flores, Alvaro Díaz-Barrera, Claudia Altamirano, Irene Martínez, Zaida Cabrera

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

17 Citas (Scopus)

Resumen

The production of recombinant proteins by Pichia pastoris under AOX1 promoter is usually performed using methanol together with either glycerol or sorbitol as co-substrate. Although both co-substrates have been widely used, comparative studies are scarce. In addition, these comparisons have been performed at different specific growth rate (µ) that it is well known that has an important effect on productivity. Thus, the effect of using these co-substrates on the production of Rhyzopus oryzae lipase (ROL) by P. pastoris was compared in continuous cultures growing at the same µ at either 22 or 30 °C. Results show that using glycerol as co-substrate led to higher volumetric productivities, and lower specific and volumetric methanol consumption rates. Scale-up simulation with 10–10,000 L bioreactor sizes indicated that glycerol produced the highest volumetric productivity of ROL with lower aeration requirements. Therefore, glycerol rises as a better option than sorbitol in ROL production.

Idioma originalInglés
Páginas (desde-hasta)407-411
Número de páginas5
PublicaciónJournal of Industrial Microbiology and Biotechnology
Volumen44
N.º3
DOI
EstadoPublicada - 1 mar. 2017
Publicado de forma externa

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