Direct utilization of waste water algal biomass for ethanol production by cellulolytic Clostridium phytofermentans DSM1183

Fathima, Anwar Aliya; Sanitha, Mary; Kumar, T. Hemant; Sellamuthu, Iyappan; Ramya, Mohandass

doi:10.1016/j.biortech.2015.11.075

Cited by 21 publications

(11 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to its capacity to convert cellulosic biomass to ethanol, C. phytofermentans seems promising in the biorefinery context, using lignocellulosic material as a source of substrate, with references reporting 7 g/L of ethanol from corn stover (Table 1) [36]. The use of algae biomass from sewage without pre-treatment by C. phytofermentans yielded 0.19 g of ethanol per g of biomass using 2% w/v of algae [66].…”

Section: Clostridium Thermocellummentioning

confidence: 99%

Clostridium sp. as Bio-Catalyst for Fuels and Chemicals Production in a Biorefinery Context

et al. 2019

View full text Add to dashboard Cite

Clostridium sp. is a genus of anaerobic bacteria capable of metabolizing several substrates (monoglycerides, diglycerides, glycerol, carbon monoxide, cellulose, and more), into valuable products. Biofuels, such as ethanol and butanol, and several chemicals, such as acetone, 1,3-propanediol, and butyric acid, can be produced by these organisms through fermentation processes. Among the most well-known species, Clostridium carboxidivorans, C. ragsdalei, and C. ljungdahlii can be highlighted for their ability to use gaseous feedstocks (as syngas), obtained from the gasification or pyrolysis of waste material, to produce ethanol and butanol. C. beijerinckii is an important species for the production of isopropanol and butanol, with the advantage of using hydrolysate lignocellulosic material, which is produced in large amounts by first-generation ethanol industries. High yields of 1,3 propanediol by C. butyricum are reported with the use of another by-product from fuel industries, glycerol. In this context, several Clostridium wild species are good candidates to be used as biocatalysts in biochemical or hybrid processes. In this review, literature data showing the technical viability of these processes are presented, evidencing the opportunity to investigate them in a biorefinery context.

show abstract

Section: Clostridium Thermocellummentioning

confidence: 99%

Clostridium sp. as Bio-Catalyst for Fuels and Chemicals Production in a Biorefinery Context

et al. 2019

View full text Add to dashboard Cite

show abstract

“…High levels of glucose, galactose, xylose, and rhamnose found in wastewater algae contributed to the source of biofuel conversion [37]. Lipid extracted algae (LEA) is an ideal feedstock in the production of biofuels since it is a non-food crop that is mainly composed of readily fermented carbohydrates such as starch.…”

Section: Feedstock Selectionsmentioning

confidence: 99%

Lignocellulosic Biomass – A Sustainable Feedstock for Acetone-Butanol-Ethanol Fermentation

Mahalingam

Abdulla

Sani

et al. 2022

Period. Polytech. Chem. Eng.

View full text Add to dashboard Cite

Biobutanol has been identified as a promising future biofuel. However, generally the extraction and separation of biobutanol from the fermentation mixture is a costly process. Therefore, the idea of using acetone-butanol-ethanol (ABE) mixture directly as biofuel were proposed to eliminate the recovery process. ABE has been identified as a promising future biofuel. The feedstocks play an important role in the feasibility of ABE as a fuel. Lignocellulosic biomass is seen as a promising feedstock for the production of biofuels. Thus, in this review, ABE biofuel is been summarized from three aspects namely (i) selection of feedstocks, (ii) microbial selection and (iii) hydrolysis, fermentation, and purification techniques. Anaerobic fermentation together with commonly employed recovery processes are discussed in the second part of this review. This review concludes with different challenges and future research in ABE fermentation that can pave the way for future commercialization of this promising biofuel.

show abstract

“…In addition to biobutanol, other bio-products can also be obtained via Clostridial fermentation from algal biomass. Park et al [ 14 ] employed anaerobic sewage sludge microflora for biohydrogen production using macro-algae biomass ( Laminaria japonica ), and wastewater algal biomass was used to ferment bioethanol via the cellulolytic strain C. phytofermentans DSM 1183 [ 29 ]. Clostridium species was also reported to co-produce butanol with riboflavin (vitamin B 2 ), a yellow water-soluble vitamin used as an important cofactor in cells, which also provides an economically practicable way to further exploit the process using algal biomass [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Genomic comparison of Clostridium species with the potential of utilizing red algal biomass for biobutanol production

Sun

Zhang

Xin

et al. 2018

Biotechnol Biofuels

View full text Add to dashboard Cite

BackgroundSustainable biofuels, which are widely considered as an attractive alternative to fossil fuels, can be generated by utilizing various biomass from the environment. Marine biomass, such as red algal biomass, is regarded as one potential renewable substrate source for biofuels conversion due to its abundance of fermentable sugars (e.g., galactose). Previous studies focused on the enhancement of biofuels production from different Clostridium species; however, there has been limited investigation into their metabolic pathways, especially on the conversion of biofuels from galactose, via whole genomic comparison and evolutionary analysis.ResultsTwo galactose-utilizing Clostridial strains were examined and identified as Clostridium acetobutylicum strain WA and C. beijerinckii strain WB. Via the genomic sequencing of both strains, the comparison of the whole genome together with the relevant protein prediction of 33 other Clostridium species was established to reveal a clear genome profile based upon various genomic features. Among them, five representative strains, including C. beijerinckii NCIMB14988, C. diolis DSM 15410, C. pasteurianum BC1, strain WA and WB, were further discussed to demonstrate the main differences among their respective metabolic pathways, especially in their carbohydrate metabolism. The metabolic pathways involved in the generation of biofuels and other potential products (e.g., riboflavin) were also reconstructed based on the utilization of marine biomass. Finally, a batch fermentation process was performed to verify the fermentative products from strains WA and WB using 60 g/L of galactose, which is the main hydrolysate from algal biomass. It was observed that strain WA and WB could produce up to 16.98 and 12.47 g/L of biobutanol, together with 21,560 and 10,140 mL/L biohydrogen, respectively.ConclusionsThe determination of the production of various biofuels by both strains WA and WB and their genomic comparisons with other typical Clostridium species on the analysis of various metabolic pathways was presented. Through the identification of their metabolic pathways, which are involved in the conversion of galactose into various potential products, such as biobutanol, the obtained results extend the current insight into the potential capability of utilizing marine red algal biomass and provide a systematic investigation into the relationship between this genus and the generation of sustainable bioenergy.Electronic supplementary materialThe online version of this article (10.1186/s13068-018-1044-9) contains supplementary material, which is available to authorized users.

show abstract

Direct utilization of waste water algal biomass for ethanol production by cellulolytic Clostridium phytofermentans DSM1183

Cited by 21 publications

References 14 publications

Clostridium sp. as Bio-Catalyst for Fuels and Chemicals Production in a Biorefinery Context

Clostridium sp. as Bio-Catalyst for Fuels and Chemicals Production in a Biorefinery Context

Lignocellulosic Biomass – A Sustainable Feedstock for Acetone-Butanol-Ethanol Fermentation

Genomic comparison of Clostridium species with the potential of utilizing red algal biomass for biobutanol production

Contact Info

Product

Resources

About