Ethanol fermentation from hydrolysed hot-water wood extracts by pentose fermenting yeasts

Shupe, Alan; Liu, Shijie

doi:10.1016/j.biombioe.2011.08.010

Cited by 18 publications

(12 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Shupe and Liu (2012) evaluated the performance of two yeast strains of S. shehatae using sugar maple hemicellulose hydrolysate (36 g xylose l −1 ) and obtained 8.87 and 6.06 g l −1 of ethanol after 4 and 7 days of fermentation, respectively. Abbi et al (1996) obtained superior ethanol yields (0.37 and 0.47 g g −1 ) from S. shehatae NCL-3501 utilizing rice straw hemicellulosic hydrolysate.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of novel xylose-fermenting yeast strains from Brazilian forests for hemicellulosic ethanol production from sugarcane bagasse

et al. 2013

View full text Add to dashboard Cite

Bioconversion of hemicellulosic hydrolysates into ethanol with the desired yields plays a pivotal role for the overall success of biorefineries. This paper aims to evaluate the ethanol production potential of four native strains of Scheffersomyces shehatae (syn. Candida shehatae) viz. S. shehatae BR6-2AI, CG8-8BY, PT1-1BASP and BR6-2AY, isolated from Brazilian forests. These strains were grown in commercial d-xylose-supplemented synthetic medium and sugarcane bagasse hemicellulose hydrolysate. S. shehatae BR6-2AY showed maximum ethanol production [0.48 ± 0.019 g g−1, 95 ± 3.78 % fermentation efficiency (FE)] followed by S. shehatae CG8-8BY (0.47 ± 0.016 g g−1, 93 ± 3.12 % FE), S. shehatae BR6-2AI (0.45 ± 0.01 g g−1, 89 ± 1.71 % FE) and S. shehatae PT1-1BASP (0.44 ± 0.02 g g−1, 86 ± 3.37 % FE) when grown in synthetic medium. During the fermentation of hemicellulose hydrolysates, S. shehatae CG8-8BY and S. shehatae BR6-2AY showed ethanol production (0.30 ± 0.05 g g−1, 58 ± 0.02 % FE) and (0.21 ± 0.01 g g−1, 40 ± 1.93 % FE), respectively.

show abstract

Section: Resultsmentioning

confidence: 99%

Evaluation of novel xylose-fermenting yeast strains from Brazilian forests for hemicellulosic ethanol production from sugarcane bagasse

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Among those, the normal baker's yeast ( Saccharomyces cerevisiae ) is well established in large‐scale production, has a high ethanol tolerance and relatively good resistance against inhibitors formed in the process. However, it does not naturally ferment pentoses , . Purification of the fermentation broth is the last step, which is mainly done by distillation.…”

Section: Ethanol Productionmentioning

confidence: 99%

Bioethylene Production from Ethanol: A Review and Techno‐economical Evaluation

2017

View full text Add to dashboard Cite

Manufacturing of bioethylene via dehydration of bioethanol is an alternative to the fossil-based ethylene production and decreases the environmental consequences for this chemical commodity. A few industrial plants that utilize 1st generation bioethanol for the bioethylene production already exist, although not functioning without subsidiaries. However, there is still no process producing ethylene from 2nd generation bioethanol. This study is divided into two parts. Different ethanol and ethylene production methods, the process specifications and current technologies are briefly discussed in the first part. In the second part, a techno-economic analysis of a bioethylene plant was performed using Aspen plus and Aspen Process Economic Analyzer, where different qualities of ethanol were considered. The results show that impurities in the ethanol feed have no significant effect on the quality of the produced polymer-grade bioethylene. The capacity of the ethylene storage tank significantly affects the capital costs of the process.

show abstract

“…as a result of the conditions that cause cellulose to rapidly break into sugars [76][77][78][79]. It is pertinent that inhibitors are removed by filtering off hydroxylate liquor followed by washing and drying of cellulose-rich residues [80] or by using reverse osmosis to exclude acetic acid, furfural 5-HMF, and other compounds before fermentation [81,82]. The use of membranes to detoxify hydroxylates could be exploited at the industrial level due to the ease of scaling up for large-scale operations.…”

Section: International Journal Of Chemical Engineeringmentioning

confidence: 99%

Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and Innovations

Bensah

Mensah

2013

International Journal of Chemical Engineering

267

105

View full text Add to dashboard Cite

Pretreatment of lignocellulose has received considerable research globally due to its influence on the technical, economic and environmental sustainability of cellulosic ethanol production. Some of the most promising pretreatment methods require the application of chemicals such as acids, alkali, salts, oxidants, and solvents. Thus, advances in research have enabled the development and integration of chemical-based pretreatment into proprietary ethanol production technologies in several pilot and demonstration plants globally, with potential to scale-up to commercial levels. This paper reviews known and emerging chemical pretreatment methods, highlighting recent findings and process innovations developed to offset inherent challenges via a range of interventions, notably, the combination of chemical pretreatment with other methods to improve carbohydrate preservation, reduce formation of degradation products, achieve high sugar yields at mild reaction conditions, reduce solvent loads and enzyme dose, reduce waste generation, and improve recovery of biomass components in pure forms. The use of chemicals such as ionic liquids, NMMO, and sulphite are promising once challenges in solvent recovery are overcome. For developing countries, alkalibased methods are relatively easy to deploy in decentralized, low-tech systems owing to advantages such as the requirement of simple reactors and the ease of operation.

show abstract

Ethanol fermentation from hydrolysed hot-water wood extracts by pentose fermenting yeasts

Cited by 18 publications

References 20 publications

Evaluation of novel xylose-fermenting yeast strains from Brazilian forests for hemicellulosic ethanol production from sugarcane bagasse

Evaluation of novel xylose-fermenting yeast strains from Brazilian forests for hemicellulosic ethanol production from sugarcane bagasse

Bioethylene Production from Ethanol: A Review and Techno‐economical Evaluation

Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and Innovations

Contact Info

Product

Resources

About