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Titolo:
CONTINUOUS ETHANOL-PRODUCTION FROM CAROB POD EXTRACT BY IMMOBILIZED SACCHAROMYCES-CEREVISIAE IN A PACKED-BED REACTOR
Autore:
ROUKAS T;
Indirizzi:
ARISTOTELIAN UNIV THESSALONIKI,DEPT FOOD SCI & TECHNOL,BOX 250 GR-54006 THESSALONIKI GREECE
Titolo Testata:
Journal of chemical technology and biotechnology
fascicolo: 4, volume: 59, anno: 1994,
pagine: 387 - 393
SICI:
0268-2575(1994)59:4<387:CEFCPE>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
JERUSALEM ARTICHOKE JUICE; POTABLE ALCOHOL PRODUCTION; KLUYVEROMYCES-MARXIANUS; ZYMOMONAS-MOBILIS; YEAST-CELLS; DEPROTEINIZED WHEY; BETA-GALACTOSIDASE; SUGAR EXTRACTION; FERMENTATION; TEMPERATURE;
Keywords:
ETHANOL; CAROB POD EXTRACT; SACCHAROMYCES-CEREVISIAE; CA-ALGINATE BEADS; CONTINUOUS FERMENTATION; PACKED-BED REACTOR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
T. Roukas, "CONTINUOUS ETHANOL-PRODUCTION FROM CAROB POD EXTRACT BY IMMOBILIZED SACCHAROMYCES-CEREVISIAE IN A PACKED-BED REACTOR", Journal of chemical technology and biotechnology, 59(4), 1994, pp. 387-393

Abstract

The continuous production of ethanol from carob pod extract by immobilized Saccharomyces cerevisiae in a packed-bed reactor has been investigated. At a substrate concentration of 150 g dm-3, maximum ethanol productivity of 16 g dm-3 h-1 was obtained at D = 0.4 h-1 with 62.3% of theoretical yield and 83.6% sugars' utilization. At a dilution rate of0.1 h-1, optimal ethanol productivity was achieved in the pH range 3.5-5.5, temperature range 30-35-degrees-C and initial sugar concentration of 200 g dm-3. Maximum ethanol productivity of 24.5 g dm-3 h-1 was obtained at D = 0.5 h-1 with 58.8% of theoretical yield and 85% sugars' utilization when non-sterilized carob pod extract containing 200 g dm-3 total sugars was used as feed material. The bioreactor system was operated at a constant dilution rate of 0.5 h-1 for 30 days without loss of the original immobilized yeast activity. In this case, the average ethanol productivity, ethanol yield (% of theoretical) and sugars' utilization were 25 g dm-3 h-1, 58.8% and 85.5%, respectively.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/07/20 alle ore 10:08:36