KINETIC EVALUATION OF ETHANOL-TOLERANT THERMOPHILE Geobacillus thermoglucosidasius M10EXG FOR ETHANOL PRODUCTION

Abstract

Thermophiles are challenging to be studied for ethanol production using agricultural waste containing lignocellulosic materials rich in hexose and pentose. These bacteria have many advantages such as utilizing a wide range of substrates, including pentose (C5) and hexose (C6). In ethanol production, it is important to use ethanol tolerant strain capable in converting lignocellulosic hydrolysate. This study was aimed to investigate the growth profile of ethanol-tolerant thermophile Geobacillus thermoglucosidasius M10EXG using a defined growth medium consisted of single carbon glucose (TGTV), xylose (TXTV), and a mixture of glucose and xylose (TGXTV), together with the effect of yeast extract addition to the media. The experiments were conducted at

Advances in consolidated bioprocessing systems for bioethanol and butanol production from biomass: a comprehensive review

“…Some G. thermoglucosidasius strains (e.g. M10EXG) are considered as a potential strain for ethanol production, because they are tolerant to 10% (v/v) ethanol (Fong et al 2006;Tang et al, 2009), and they also can utilize a wide range of substrates, including pentose (C5) and hexose (C6) (Riyanti and Rogers, 2013). Cripps et al (2009) used a metabolic engineering methodology to divert fermentative carbon flux from a mixed acid pathway to one ethanol production pathway, and therefore, reduced the byproducts quantity and increased ethanol production in G. thermoglucosidasius.…”

Bioprospecting thermophilic/thermotolerant microbes for production of lignocellulosic ethanol: A future perspective

“…G. thermoglucosidasius has been reported to utilize both glucose and xylose for ethanol production [68].…”