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Type: Artigo
Title: Alginate production by Pseudomonas mendocina in a stirred draft fermenter
Author: Müller, José Miguel
Alegre, Ranulfo Monte
Abstract: In this study alginate production by Pseudomonas mendocina in a laboratory-scale fermenter was investigated. In the experiments the effect of temperature (25–31°C) and agitation (500–620 rev min−1) at a constant air flow of 10 v/v/h were evaluated in relation to the rate of glucose bioconversion to alginate using response surface methodology (RSM). The fermenter configuration was also adapted to a system with a screw mixer and draft tube, due to the change in rheological characteristics of the fermentation broth. The adjusted model indicates a temperature of 29.1°C and agitation of 553 rev min−1 for optimum alginate synthesis. In this fermentation system a Y p/s of 44.8% was achieved. The alginate synthesized by P. mendocina showed a partially acetylated pattern as previously reported for alginates obtained from other Pseudomonas spp and Azotobacter vinelandii.
Subject: Pseudomonas
Country: Países Baixos
Editor: Springer
Rights: Fechado
Identifier DOI: 10.1007/s11274-006-9285-3
Date Issue: 2007
Appears in Collections:FEA - Artigos e Outros Documentos

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