Saccharomyces cerevisiae ethanol

Keywords immobilised cell reactor (ICR) Saccharomyces cerevisiae ethanol fermentation encapsulated beads calcium alginate... [Pg.207]

Keywords. Xylose, Saccharomyces cerevisiae. Ethanol, Lignocellulose, Metabolic engineering... [Pg.53]

A8 Cell immobilization on loofa sponge Ethanol Saccharomyces cerevisiae Ethanol/energy [91... [Pg.135]

Alcoholic Fermentation. Certain types of starchy biomass such as com and high sugar crops are readily converted to ethanol under anaerobic fermentation conditions ia the presence of specific yeasts Saccharomyces cerevisia and other organisms (Fig. 6). However, alcohoHc fermentation of other types of biomass, such as wood and municipal wastes that contain high concentrations of cellulose, can be performed ia high yield only after the ceUulosics are converted to sugar concentrates by acid- or enzyme-catalyzed hydrolysis ... [Pg.18]

Ethanol (non-beverage) Saccharomyces cerevisiae Fine chemicals... [Pg.2]

CASE STUDY ETHANOL FERMENTATION IN AN IMMOBILISED CELL REACTOR USING SACCHAROMYCES CEREVISIAE... [Pg.206]

Fermentation of sugar by Saccharomyces cerevisiae, for production of ethanol in an immobilised cell reactor (ICR), was successfully carried out to improve the performance of the... [Pg.206]

Owing to diminishing fossil fuel reserves, alternative energy sources need to be renewable, sustainable, efficient, cost-effective, convenient and safe.1 In recent decades, microbial production of ethanol has been considered as an alternative fuel for the future because fossil fuels are depleting. Several microorganisms, including Clostridium sp. and yeast, the well-known ethanol producers Saccharomyces cerevisiae and Zymomonas mobilis, are suitable candidates to produce ethanol.2,3... [Pg.207]

Najafpour, G.D., Younesi, H. and Ku Ismail, K.S., Ethanol Fermentation in Immobilized Cell Reactor (ICR) Using Saccharomyces cerevisiae , Bioresource Technology, vol. 92/3, 2004, pp. 251-260. [Pg.222]

Saccharomyces cerevisiae is anaerobically grown in a continuous culture at 30°C. Glucose is used as substrate and ammonia as nitrogen source. A mixture of glycerol and ethanol is produced. At steady-state condition mass the flow rate is stated. The following reaction is proposed for the related bioprocess 4,6... [Pg.230]

There are two popular microorganisms that can produce high concentrations of alcohol. Their tolerance to high concentrations of ethanol and substrates are stated in the literature.3-5 The most common are Zymomonas mobilis and Saccharomyces cerevisiae. [Pg.253]

Example 12.7 Develop a model for the anaerobic batch fermentation of glucose to ethanol and coproduct CO2 using Saccharomyces cerevisiae. The starting mixture contains 10% glucose. The inoculum is 0.0005 w/w. Product inhibition stops cell growth at 14% ethanol. Assume ka = 0 but include the cannibalization of cellular material beginning when the substrate is completely consumed. [Pg.453]

Continuous extraction loop reactor Ethanol production with glucose fermentation Saccharomyces cerevisiae 126... [Pg.580]

Effluent is drawn off from a side port. Under conditions in which a conventional three-phase fluidized bed bioreactor operated in an unstable manner because of gas logging, the new bioreactor converted glucose to ethanol at a 27% higher rate. Saccharomyces cerevisiae was grown in alginate beads for this reaction. [Pg.661]

A trivial yet important application is following ethanol production via a bioprocess. Sivakesava et al.1 simultaneously measured glucose, ethanol, and the optical cell density of Saccharomyces cerevisiae during ethanol fermentation, using an off-line approach. Samples were brought to an instrument located near the fermentation tanks and the measurements made in short order. While they eventually used MIR due to the interfering scatter of the media, they proved that Raman could be used for this application. [Pg.385]

In another fermentation process, Mosheky et al.18 reacted Saccharomyces cerevisiae with sugars and followed the progress of the fermentation with MIR-ATR. Two PLS models were used one for sucrose, fructose, and glucose and one for the ethanol. The authors did not specify SEPs for the experiment, but showed correlation coefficients of better than 0.998 for all analytes. [Pg.388]

Cira LA et al (2008) Heterologous expression of Fusarium oxysporum tomatinase in Saccharomyces cerevisiae increases its resistance to saponins and improves ethanol production during the fermentation of Agave tequilana Weber var. azul and Agave salmiana must. Antonie Van Leeuwenhoek. Int J Gen Mol Microbiol 93 259... [Pg.29]

Solutions of wood sugars were fermented anaerobically by ordinary Fleischmann s yeast (Saccharomyces cerevisiae). After 2 days the brews were tested for residual sugar. Also samples of the brew were distilled and the distillates analysed for ethanol... [Pg.189]

Hayes, W.A., Ethanol production from glucose by Saccharomyces cerevisiae in an anaerobic gas-solid fluidised bed fermenter, PhD thesis. University of Lincolnshire and Humberside, 1998. [Pg.221]

Moebus, O. and Teuber, M., Production of ethanol by solid particles of Saccharomyces cerevisiae in a fluidized bed, Eur. ]. Appl. Microbiol. Biotechnol., 15 (1982a) 194-197. [Pg.222]

Thibault, J., Le Duy, A. and Cote, E, Production of ethanol by Saccharomyces cerevisiae under high-pressure conditions. Biotech. Bioeng., 30 (1987) 74-80. [Pg.223]

Simple organic molecules Ethanol Butanol Acetone Acetic acid Lactic acid Saccharomyces cerevisiae Pachysolen tamiophilus, some Clostridium spp. Clostridium acetobutylicum, C. saccharoacetobutylicum Clostridium acetobutylicum, C. saccharoacetobutylicum Various acetic acid bacteria Lactobacillus spp. [Pg.132]

Anti-yeast activity. Ethanol extract of the shade-dried seed, on agar plate at a concentration of 2.5 mg/disc, was inactive on Candida albicans ° Undiluted seed oil on agar plate was inactive on Candida albicans and Saccharomyces cerevisiae. ... [Pg.493]

Prior to fermentation, the wort is then cooled to temperatures below 85°F (30°C), and the pH is adjusted to about 5. Yeast such as Saccharomyces cerevisiae, Saccharomyces carlsbergensis or Candida brassicae are added and fermentation proceeds for 2 to 3 days under batch processing conditions. Yeast produces the enzymes maltase, zymase, and invertase. Maltase converts maltose to glucose. Zymase converts glucose to ethanol. Invertase converts any sucrose present to fermentable sugar. The following equations illustrate the enzymatic conversion of starch to ethanol ... [Pg.279]

Ethanol Aspergillus niger and Saccharomyces cerevisiae (Jeon et al., 2007)... [Pg.457]

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