Lactic acid production from sugarcane bagasse by an integrated system of lignocellulose fractionation, saccharification, fermentation, and ex-situ nanofiltration

Oonkhanond, Bovornlak; Jonglertjunya, Woranart; Srimarut, Nattawee; Bunpachart, Prach; Tantinukul, Sapon; Nasongkla, Norased; Sakdaronnarong, Chularat

doi:10.1016/j.jece.2017.05.004

Cited by 55 publications

(23 citation statements)

References 39 publications

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“…An eco-friendly method of biomass pretreatment using ionic liquids followed by subsequent hydrolysis for efficient SSCF process has been explored using L. brevis [11]. An integrated system for LA production in combination with lignocellulose pretreatment, separate hydrolysis and fermentation was developed via L. casei from sugarcane bagasse [3]. However, the suitable growth temperature for the above strain was 37 • C, which did not match the enzymatic temperature of cellulase.…”

Section: Discussionmentioning

confidence: 99%

“…Lactic acid (LA) is an important chemical commodity with versatile applications in food, chemicals and pharmaceutical industries [1]. Currently, the studies on converting lignocellulosic feedstock into LA were extensively reported [2][3][4]. Phragmites australis straw (PAS) is an abundant and renewable lignocellulosic feedstock with worldwide distribution [5].…”

Section: Introductionmentioning

confidence: 99%

“…Simultaneous saccharification and fermentation (SSF) or simultaneous saccharification and co-fermentation (SSCF) is an effective way to eliminate feedback inhibition of cellulase hydrolysis, since the released glucose could be rapidly fermented to product [7]. Recently, a new integrated process was applied to produce lignocellulose-based biochemical [3,[11][12][13]. Figure 1 shows a schematic diagram of the conventional separated process and the new integrated process.…”

Section: Introductionmentioning

confidence: 99%

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A Process Study of Lactic Acid Production from Phragmites australis Straw by a Thermophilic Bacillus coagulans Strain under Non-Sterilized Conditions

Zhang¹,

Li²,

Nie³

et al. 2018

Processes

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Phragmites australis straw (PAS) is an abundant and renewable wetland lignocellulose. Bacillus coagulans IPE22 is a robust thermophilic strain with pentose-utilizing capability and excellent resistance to growth inhibitors. This work is focused on the process study of lactic acid (LA) production from P. australis lignocellulose which has not been attempted previously. By virtue of thermophilic feature of strain IPE22, two fermentation processes (i.e., separated process and integrated process), were developed and compared under non-sterilized conditions. The integrated process combined dilute-acid pretreatment, hemicellulosic hydrolysates fermentation, and cellulose utilization. Sugars derived from hemicellulosic hydrolysates and cellulose enzymatic hydrolysis were efficiently fermented to LA in a single vessel. Using the integrated process, 41.06 g LA was produced from 100 g dry PAS. The established integrated process results in great savings in terms of time and labor, and the fermentation process under non-sterilized conditions is easy to scale up for economical production of lactic acid from PAS.Obviously, SSCF is at the heart of the integrated process and the robust thermophilic strain with pentose-utilizing capability and excellent resistance to growth inhibitors is essential. Processes 2018, 6, x FOR PEER REVIEW 2 of 9 Author Contributions: Conceptualization, Y.Z.; methodology, M.L. and T.N.; validation, Z.N.; writing-original draft preparation, Z.N.; writing-review and editing, Y.Z.; funding acquisition, Y.Z. and Z.N.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Process Study of Lactic Acid Production from Phragmites australis Straw by a Thermophilic Bacillus coagulans Strain under Non-Sterilized Conditions

Zhang¹,

Li²,

Nie³

et al. 2018

Processes

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“…The efficiency of biological delignification depends upon the type of microorganism used, nature and type of substrate used, and the cultivation methods and conditions used (Liu et al 2017;Narra et al 2017;Tsegaye et al 2018a, b). Bioethanol can be acquired from lignocellulose biomass after successive processes including pretreatments to remove lignin and releases the entangled polysaccharides and fermentation (Silveira et al 2015;Oonkhanond et al 2017). Oonkhanond et al (2017) obtained highly accessible cellulose for enzymatic hydrolysis after pretreating sugarcane bagasse by green solvents under supercritical carbon dioxide condition.…”

Section: Introductionmentioning

confidence: 99%

“…Bioethanol can be acquired from lignocellulose biomass after successive processes including pretreatments to remove lignin and releases the entangled polysaccharides and fermentation (Silveira et al 2015;Oonkhanond et al 2017). Oonkhanond et al (2017) obtained highly accessible cellulose for enzymatic hydrolysis after pretreating sugarcane bagasse by green solvents under supercritical carbon dioxide condition. Separated hydrolysis and fermentation (SHF) and simultaneous hydrolysis and fermentation (SSF) are the most commonly used techniques for bioethanol production.…”

Section: Introductionmentioning

confidence: 99%

Microbial delignification and hydrolysis of lignocellulosic biomass to enhance biofuel production: an overview and future prospect

2019

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Background: The depletion of fossil fuel and its huge environmental problem are currently a concern for a scientific community in the area of energy engineering. This opened research opportunities for searching alternate renewable energy sources especially biofuel production from lignocellulose biomass resources. The main objective of this paper is to review the delignification and hydrolysis capabilities of microorganisms (bacteria and fungi). Results: Currently, different types of lignocellulose biomass pretreatment technologies are available. All of the technologies are either in lab scale or in pilot scale. Among the pretreatment technologies, biological pretreatments attract many attentions because of their eco-friendly advantages, performed at a mild temperature and do not produce inhibitory compounds during the pretreatment process. Industrial-scale biofuel production using biological delignification and hydrolysis process is still at lab scale, and intensive research works are required. The cost of biofuel production from lignocellulose biomass is currently expensive. Conclusion: Searching for the best microbial strains having efficient lignin-degrading and polysaccharide-hydrolyzing capabilities is vital to realize industrial-scale biofuel production from lignocellulose biomass. Process optimization along with genetic engineering of microorganisms is seen as a potential for biofuel production from lignocellulose biomass.

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Lactic Acid and Ethanol: Promising Bio‐Based Chemicals from Fermentation

Komesu

Oliveira

Martins

et al. 2018

Principles and Applications of Fermentation Technology

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Lactic acid production from sugarcane bagasse by an integrated system of lignocellulose fractionation, saccharification, fermentation, and ex-situ nanofiltration

Cited by 55 publications

References 39 publications

A Process Study of Lactic Acid Production from Phragmites australis Straw by a Thermophilic Bacillus coagulans Strain under Non-Sterilized Conditions

A Process Study of Lactic Acid Production from Phragmites australis Straw by a Thermophilic Bacillus coagulans Strain under Non-Sterilized Conditions

Microbial delignification and hydrolysis of lignocellulosic biomass to enhance biofuel production: an overview and future prospect

Lactic Acid and Ethanol: Promising Bio‐Based Chemicals from Fermentation

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