Catalytic treatment of rapeseed straw for enhanced production of furfural and glucose for bioethanol production

Rozenfelde, Linda; Puķe, Māris; Vederņikovs, Nikolajs; Scherbaka, Rita; Rapoport, Alexander

doi:10.1016/j.procbio.2020.12.007

Cited by 10 publications

(5 citation statements)

References 31 publications

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“…The remaining lignincontaining residue was used in our study. Chemical analysis showed that lignin content in colza straw was 17.5 ± 0.19% [4]. After hydrothermal and enzymatic treatments total lignin amount has not changed considerably-it has decreased by 1-2 ± 0.02%.…”

Section: Substrate For Myceliummentioning

confidence: 94%

“…Then, this residue was hydrolysed using commercial preparations of cellulase-Accellerase 1500 DuPont (Genencor, The Netherlands). The enzymatic hydrolysis was performed at a temperature of 50 • C during 72 h [4]. Glucosecontaining supernatant was used for the obtaining of ethanol.…”

Section: Substrate For Myceliummentioning

confidence: 99%

“…For example, they can be used as raw material for the production of second-generation biofuel [1,2]. Colza straw can be used as the source of cellulose and hemicellulose in the production of furfural and bioethanol [3,4]. This process generates the most recalcitrant lignin residues that must undergo further biodegradation to make the production of furfural and bioethanol or lipids as a waste-less process.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Pretreated Colza Straw on the Growth and Extracellular Ligninolytic Enzymes Production by Lentinula edodes and Ganoderma lucidum

et al. 2021

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Lentinula edodes 3565 and Ganoderma lucidum 9621 were compared for their ability to produce lignocellulolytic enzymes in submerged (SM) and surface liquid (SL) fermentation of hydrolysed colza straw lignin waste that remained after the production of furfural and bioethanol (CS lignin). Application of cultivated mushrooms to dispose of pretreated colza straw agricultural waste is an approach to decrease the quantity of residual lignin while simultaneously obtaining active substances, e.g., the ligninolytic enzyme complex from mycelium. The effect of adding CS lignin to culture media on the yield of L. edodes and G. lucidum mycelium and extracellular laccase activity was studied. It was revealed that the mycelial growth of G. lucidum on solid media was significantly improved by adding CS lignin. Laccase activity during SL cultivation of L. edodes on medium with CS lignin gradually increased over the experiment starting on day 21 and peaked at 520 U/mL on day 28. G. lucidum expressed the maximum laccase activity, 540 U/mL, during the first 14 days of mycelium SM cultivation. Extracellular laccase activity was enhanced about 35- to 40-fold at cultivation of L. edodes and about 10- to 15-fold in the case of G. lucidum by supplementing liquid culture media with CS lignin.

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Section: Substrate For Myceliummentioning

confidence: 94%

Section: Substrate For Myceliummentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Pretreated Colza Straw on the Growth and Extracellular Ligninolytic Enzymes Production by Lentinula edodes and Ganoderma lucidum

et al. 2021

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“…L. starkeyi reached a lipid yield of 0.09 g per g consumed D‐glucose, and a production rate of 0.08 g/l h; R. babjevae 0.17 g/g and 0.18 g/l h (Brandenburg et al, 2018). Similarly, furfural could also be produced from rapeseed oil, and ethanol production from the cellulose fraction was demonstrated (Rozenfelde et al, 2021).…”

Section: Lipid Production From Lignocellulosic Raw Materialsmentioning

confidence: 99%

Oleaginous yeasts for biochemicals, biofuels and food from lignocellulose‐hydrolysate and crude glycerol

Passoth

Brandenburg

Chmielarz

et al. 2023

Yeast

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Microbial lipids produced from lignocellulose and crude glycerol (CG) can serve as sustainable alternatives to vegetable oils, whose production is, in many cases, accompanied by monocultures, land use changes or rain forest clearings. Our projects aim to understand the physiology of microbial lipid production by oleaginous yeasts, optimise the production and establish novel applications of microbial lipid compounds. We have established methods for fermentation and intracellular lipid quantification. Following the kinetics of lipid accumulation in different strains, we found high variability in lipid formation even between very closely related oleaginous yeast strains on both, wheat straw hydrolysate and CG. For example, on complete wheat straw hydrolysate, we saw that one Rhodotorula glutinis strain, when starting assimilating D‐xylosealso assimilated the accumulated lipids, while a Rhodotorula babjevae strain could accumulate lipids on D‐xylose. Two strains (Rhodotorula toruloides CBS 14 and R. glutinis CBS 3044) were found to be the best out of 27 tested to accumulate lipids on CG. Interestingly, the presence of hemicellulose hydrolysate stimulated glycerol assimilation in both strains. Apart from microbial oil, R. toruloides also produces carotenoids. The first attempts of extraction using the classical acetone‐based method showed that β‐carotene is the major carotenoid. However, there are indications that there are also substantial amounts of torulene and torularhodin, which have a very high potential as antioxidants.

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“…Physico-chemical methods of pretreatment have been preferred due to high lignin removal and improved enzymatic hydrolysis. Usually, the biomass is pretreated to disrupt its complex and recalcitrant nature, thus resulting in the release of carbohydrates or sugars that are utilized by microorganisms for the production of bioacetoin [13,14,[16][17][18]. But there is a need for ample supply of the respective biomass with simple processing for effective utilization at the industrial scale.…”

Section: Introductionmentioning

confidence: 99%

Bioacetoin Production by Bacillus subtilis subsp. subtilis Using Enzymatic Hydrolysate of Lignocellulosic Biomass

Saini,

Anu,

Rapoport

et al. 2023

Fermentation

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Acetoin is an important bio-product useful in the chemical, food and pharmaceutical industries. Microbial fermentation is the major process for the production of bioacetoin, as the petroleum resources used in chemical methods are depleting day by day. Bioacetoin production using wild microorganisms is an easy, eco-friendly and economical method for the production of bioacetoin. In the present study, culture conditions and nutritional requirements were optimized for bioacetoin production by a wild and non-pathogenic strain of B. subtilis subsp. subtilis JJBS250. The bacterial culture produced maximum bioacetoin (259 mg L−1) using peptone (3%) and sucrose (2%) at 30 °C, 150 rpm and pH 7.0 after 24 h. Further supplementation of combinatorial nitrogen sources, i.e., peptone (1%) and urea (0.5%), resulted in enhanced titre of bioacetoin (1017 mg L−1) by the bacterial culture. An approximately 46.22–fold improvement in bioacetoin production was achieved after the optimization process. The analysis of samples using thin layer chromatography confirmed the presence of bioacetoin in the culture filtrate. The enzymatic hydrolysate was obtained by saccharification of pretreated rice straw and sugarcane bagasse using cellulase from Myceliophthora thermophila. Fermentation of the enzymatic hydrolysate (3%) of pretreated rice straw and sugarcane bagasse by the bacterial culture resulted in 210 and 473.17 mgL−1 bioacetoin, respectively. Enzymatic hydrolysates supplemented with peptone as a nitrogen source showed a two to four-fold improvement in the production of bioacetoin. Results have demonstrated the utility of wild type B. subtilis subsp. subtilis JJBS250 as a potential source for economical bioacetoin production by making use of renewable and cost-effective lignocellulosic substrate. Therefore, this study will help in the sustainable management of agricultural waste for the industrial production of bioacetoin, and in combating environmental pollution.

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Catalytic treatment of rapeseed straw for enhanced production of furfural and glucose for bioethanol production

Cited by 10 publications

References 31 publications

Effect of Pretreated Colza Straw on the Growth and Extracellular Ligninolytic Enzymes Production by Lentinula edodes and Ganoderma lucidum

Effect of Pretreated Colza Straw on the Growth and Extracellular Ligninolytic Enzymes Production by Lentinula edodes and Ganoderma lucidum

Oleaginous yeasts for biochemicals, biofuels and food from lignocellulose‐hydrolysate and crude glycerol

Bioacetoin Production by Bacillus subtilis subsp. subtilis Using Enzymatic Hydrolysate of Lignocellulosic Biomass

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