scholarly journals STUDIES ON THE POSSIBILITIES TO USE AGRICULTURAL AND FOOD WASTES TO PRODUCE ETHANOL ALCOHOL. 1-FACTORS AFFECTING THE ETHANOL PRODUCTION FROM SUGAR BEET MOLASSES

2018 ◽  
Vol 23 (1) ◽  
pp. 147-156
Author(s):  
Awatif Mohamed ◽  
Attia EL-Makhzangy
Keyword(s):  
Sugar Beet ◽  
Ethanol Production ◽  
Food Wastes ◽  
Factors Affecting ◽  
Beet Molasses ◽  
Sugar Beet Molasses

scholarly journals Optimal growth of Saccharomyces cerevisiae (PTCC 24860) on pretreated molasses for ethanol production: Application of response surface methodology

2010 ◽  
Vol 16 (2) ◽  
pp. 199-206 ◽  
Author(s):  
Hoda Shafaghat ◽  
Ghasem Najafpour ◽  
Sirous Rezaei ◽  
Mazyar Sharifzadeh
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Response Surface Methodology ◽  
Cell Growth ◽  
Sugar Beet ◽  
Ethanol Production ◽  
Response Surface ◽  
Incubation Time ◽  
Influence Of Process Parameters ◽  
Beet Molasses ◽  
Sugar Beet Molasses

Saccharomyces cerevisiae (PTCC 24860) growth on pretreated sugar beet molasses was optimized via statistical approach. In order to liberate all monomeric sugars, pretreated sugar beet molasses with dilute acid was obtained. The influence of process parameters such as sugar concentration, nitrogen source, pH and incubation time on cell growth were investigated by design expert software with application of central composite design (CCD) under response surface methodology (RSM). The optimal culture conditions were pH of 5.3, incubation time of 24 h and medium composition of 35 g reduced sugars, 1.5 g NH4Cl and 1 g yeast extract per liter of the media. At optimal cell growth conditions and incubation time of 12 h, maximum ethanol production of 14.87 g/L was obtained.

scholarly journals Optimization of Yeast, Sugar and Nutrient Concentrations for High Ethanol Production Rate Using Industrial Sugar Beet Molasses and Response Surface Methodology

Fermentation ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 86
Author(s):  
Jean-Baptiste Beigbeder ◽  
Julia Maria de Medeiros Dantas ◽  
Jean-Michel Lavoie
Keyword(s):  
Response Surface Methodology ◽  
Sugar Beet ◽  
Ethanol Production ◽  
Response Surface ◽  
Ethanol Productivity ◽  
Sugar Concentration ◽  
Yeast Fermentation ◽  
Beet Molasses ◽  
Sugar Beet Molasses ◽  
High Ethanol

Among the various agro-industrial by-products, sugar beet molasses produced by sugar refineries appear as a potential feedstock for ethanol production through yeast fermentation. A response surface methodology (RSM) was developed to better understand the effect of three process parameters (concentration of nutrient, yeast and initial sugar) on the ethanol productivity using diluted sugar beet molasses and Saccharomyces cerevisiae yeast. The first set of experiments performed at lab-scale indicated that the addition of 4 g/L of nutrient combined with a minimum of 0.2 g/L of yeast as well as a sugar concentration lower than 225 g/L was required to achieve high ethanol productivities (<15 g/L/d). The optimization allowed to considerably reduce the amount of yeast initially introduced in the fermentation substrate while still maximizing both ethanol productivity and yield process responses. Finally, scale-up assays were carried out in 7.5 and 100 L bioreactors using the optimal conditions: 150 g/L of initial sugar concentration, 0.27 g/L of yeast and 4 g/L of nutrient. Within 48 h of incubation, up to 65 g/L of ethanol were produced for both scales, corresponding to an average ethanol yield and sugar utilization rate of 82% and 85%, respectively. The results obtained in this study highlight the use of sugar beet molasses as a low-cost food residue for the sustainable production of bioethanol.

scholarly journals Maximization of Bio-Ethanol Production by Yeasts using Sugar Cane and Sugar Beet Molasses

2021 ◽  
Vol 9 (12) ◽  
Author(s):  
Zaghloul R.A ◽  
Solafa A. Ismail ◽  
Gamal Enan ◽  
Rasha M. El-Meihy ◽  
Abdel-Rahman H.M.
Keyword(s):  
Sugar Beet ◽  
Ethanol Production ◽  
Sugar Cane ◽  
Beet Molasses ◽  
Sugar Beet Molasses

Novel strategy using an adsorbent-column chromatography for effective ethanol production from sugarcane or sugar beet molasses

2009 ◽  
Vol 100 (20) ◽  
pp. 4697-4703 ◽  
Author(s):  
Ken-ichi Hatano ◽  
Satoshi Kikuchi ◽  
Yohei Nakamura ◽  
Hironobu Sakamoto ◽  
Machiko Takigami ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Ethanol Production ◽  
Column Chromatography ◽  
Beet Molasses ◽  
Sugar Beet Molasses ◽  
Novel Strategy

Monitoring and control of industrial downstream processing of sugar beet molasses

2000 ◽  
Vol 882 (1-2) ◽  
pp. 329-334 ◽  
Author(s):  
Roland Ulber ◽  
Robert Faurie ◽  
Peter Sosnitza ◽  
Lutz Fischer ◽  
Egbert Stärk ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Downstream Processing ◽  
Monitoring And Control ◽  
Beet Molasses ◽  
Sugar Beet Molasses ◽  
And Control
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