Bubble column bioreactor design and evaluation for bioethanol production using simultaneous saccharification and fermentation strategy from hydrothermally pretreated lignocellulosic biomass

González-Gloria, K.D.; Rodríguez-Jasso, Rosa M.; Saxena, Rohit; Sindhu, Raveendran; Ali, Sameh S.; Singhania, Reeta Rani; Patel, Anil Kumar; Ruíz, Héctor A.

doi:10.1016/j.bej.2022.108645

Cited by 10 publications

(1 citation statement)

References 51 publications

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“…For instance, there is a study highlighting the use of the yeast Candida guilliermondii immobilized in calcium-alginate in a column reactor at an aeration rate of 0.66 to 1.33 min −1 (air flow per volume of medium), which achieved a maximum volumetric productivity of 0.21 g/L•h from sugarcane bagasse [42]. Furthermore, bubble column reactors have been employed in various applications, such as fermenting wheat straw rich in cellulose to produce ethanol (9.31 g/L) [43], integrating enzymatic pretreatment and hydrolysis of apple pomace with Rhodococcus opacus [44], and growing lipid-rich bacterial biomass utilizing refinery wastewater [45].…”

Section: Xylitol Production Form Corncobs Hemicellulosic Hydrolysate ...mentioning

confidence: 99%

Valorization of Corn Cobs for Xylitol and Bioethanol Production through Column Reactor Process

et al. 2023

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Corncobs are a plentiful lignocellulosic material that can be utilized for energy production as well as the generation of other high-value products. Within the modern concept of biorefineries, we present processes conducted in a column reactor for the valorization of corncobs as a substrate for ethanol and xylitol production. In the first step, corncobs were subjected to acid hydrolysis, resulting in a hemicellulosic hydrolysate rich in xylose sugars intended for xylitol production by Candida tropicalis UFMGBX12-a. The YP/S (yield coefficient of product to substrate) and QP (productivity) values were approximately 0.2 g/g and 0.15 g/L·h, respectively, for the assays conducted in the column reactor. Next, the remaining solid portion of cellulignin was used for ethanol production through semi-simultaneous saccharification and fermentation process by Scheffersomyces parashehatae UFMG-HM 52.2. This approach involved an intensified successive process consisting of alkaline pretreatment of cellulignin, followed by enzymatic hydrolysis and fermentative processes conducted in the same reactor without biomass transfer. After obtaining the enzymatic hydrolysate, a QP value of 0.4 g/L·h for ethanol production was observed in the fermentation process conducted in the column reactor. The results demonstrate the potential of corncobs as a carbon source for biomolecules production, utilizing a process conducive to scale-up.

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Section: Xylitol Production Form Corncobs Hemicellulosic Hydrolysate ...mentioning

confidence: 99%

Valorization of Corn Cobs for Xylitol and Bioethanol Production through Column Reactor Process

et al. 2023

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Lignocellulosic Biomass as Feedstock for Biofuels

Barnwal,

Dhar,

Parayil

et al. 2024

Solid‐Gaseous Biofuels Production

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Sustainable biofuel production in Sub‐Saharan Africa: Exploring transesterification process, nonedible feedstocks, and policy implications

Kichonge,

Kivevele

2024

WIREs Energy & Environment

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The world is currently dealing with an energy crisis, primarily due to heavy reliance on finite fossil fuels and the associated rise in energy demand. In response to this crisis, replacing heavy reliance on finite fossil fuels with biodiesel has gained attention as an alternative solution. Sub‐Saharan African (SSA) biodiesel studies have traditionally focused on improving transesterification but overlook socio‐economic, policy, and institutional impacts on production sustainability. To address this gap, this study comprehensively reviews the sustainability of transesterification‐based biodiesel production from nonedible feedstocks in SSA. The study's incorporation of socio‐economic factors, policy considerations, sustainability concerns, and institutional frameworks reveals the complex prospects and challenges facing biodiesel production in SSA. The findings reveal that sustainability challenges in SSA stem from a lack of an integrated approach, resulting in conflicting local and global policies. The study determines that neglecting socio‐economic factors, policy considerations, sustainability concerns, and institutional frameworks weakens regional biodiesel production sustainability. Evidence from the study emphasizes the role of an integrated approach in promoting biofuel production, establishing markets, and improving the livelihoods of the region's population. Furthermore, the review shows that transesterification can yield biodiesel with comparable physical properties to conventional diesel, making it a wide region's favored option.This article is categorized under: Human and Social Dimensions > Energy and Climate Justice Sustainable Energy > Bioenergy Sustainable Development > Goals

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Bubble column bioreactor design and evaluation for bioethanol production using simultaneous saccharification and fermentation strategy from hydrothermally pretreated lignocellulosic biomass

Cited by 10 publications

References 51 publications

Valorization of Corn Cobs for Xylitol and Bioethanol Production through Column Reactor Process

Valorization of Corn Cobs for Xylitol and Bioethanol Production through Column Reactor Process

Lignocellulosic Biomass as Feedstock for Biofuels

Sustainable biofuel production in Sub‐Saharan Africa: Exploring transesterification process, nonedible feedstocks, and policy implications

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