CONTINUOUS ETHANOLIC FERMENTATION BY SACCHAROMYCES-CEREVISIAE IMMOBILIZED IN CA-ALGINATE BEADS HARDENED WITH AL3+

Authors
ROCA E CAMESELLE C NUNEZ MJ LEMA JM
Citation
E. Roca et al., CONTINUOUS ETHANOLIC FERMENTATION BY SACCHAROMYCES-CEREVISIAE IMMOBILIZED IN CA-ALGINATE BEADS HARDENED WITH AL3+, Biotechnology techniques, 9(11), 1995, pp. 815-820
Citations number
15
Categorie Soggetti
Biothechnology & Applied Migrobiology
Journal title
Biotechnology techniques → ACNP
ISSN journal
0951208X
Volume
9
Issue
11
Year of publication
1995
Pages
815 - 820
Database
ISI
SICI code
0951-208X(1995)9:11<815:CEFBSI>2.0.ZU;2-F
Abstract
The most suitable conditions for the hardening of alginate bioparticle s by Al3+ obtained were: Al3+, 0.3 M; time of treatment 5 min and yeas t concentration in the gel, 3 g dry weight/L. The hardened biocatalyst was used to carry out an ethanolic fermentation process in a semi-pil ot packed-bed reactor and no breakage of the bioparticles was observed , although the lower part beads had a flat shape, which caused a 11% d ecrease in bed height. Ethanol productivities up to 31 g/L . h were ob tained.