Kaskadennutzung von Lignocellulose: LX-Verfahren trifft auf B. coagulans

Schroedter, Linda; Streffer, Friedrich; Streffer, Katrin; Unger, Peter D.; Venus, Joachim

doi:10.1007/s12268-020-1499-7

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…Afterwards, only a few inhibitor compounds could be detected in the resulting LX-Cellulose. Early substrate batches in the project showed furfural and HMF concentrations of <10 mg L −1 , combined [ 38 ]. Since the method was gradually improved alongside the project, no significant concentrations of inhibitor compounds were detected in later stage samples.…”

Section: Resultsmentioning

confidence: 99%

“…After a strain screening in the filtrate of DCS-LX hydrolysate, Bacillus coagulans DSM ID 14-300 (abbr. 14-300) was selected as the candidate for the fermentation experiments (published elsewhere [ 38 ]). Precultures for fermentation experiments were grown in 180 mL MRS (Merck Millipore, Darmstadt, Germany), added with 2 g EVERZIT ® Dol (0.5–2.5 mm sized CaCO 3 · MgCO 3 ; Evers, Hopsten, Germany) and kept in a shaking incubator for 15 h at 40 °C and 100 rpm.…”

Section: Methodsmentioning

confidence: 99%

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Biorefinery Concept Employing Bacillus coagulans: LX-Lignin and L-(+)-Lactic Acid from Lignocellulose

Schroedter

Streffer²,

Streffer³

et al. 2021

Microorganisms

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A new biorefinery concept is proposed that integrates the novel LX-Pretreatment with the fermentative production of L-(+)-lactic acid. Lignocellulose was chosen as a substrate that does not compete with the provision of food or feed. Furthermore, it contains lignin, a promising new chemical building material which is the largest renewable source for aromatic compounds. Two substrates were investigated: rye straw (RS) as a residue from agriculture, as well as the fibrous digestate of an anaerobic biogas plant operated with energy corn (DCS). Besides the prior production of biogas from energy corn, chemically exploitable LX-Lignin was produced from both sources, creating a product with a low carbohydrate and ash content (90.3% and 88.2% of acid insoluble lignin). Regarding the cellulose fraction of the biomass, enzymatic hydrolysis and fermentation experiments were conducted, comparing a separate (SHF), simultaneous (SSF) and prehydrolyzed simultaneous saccharification and fermentation (PSSF) approach. For this purpose, thermophilic B. coagulans 14-300 was utilized, reaching 38.0 g L−1 LA in 32 h SSF from pretreated RS and 18.3 g L−1 LA in 30 h PSSF from pretreated DCS with optical purities of 99%.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Biorefinery Concept Employing Bacillus coagulans: LX-Lignin and L-(+)-Lactic Acid from Lignocellulose

Schroedter

Streffer²,

Streffer³

et al. 2021

Microorganisms

Self Cite

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“…Recently, a new generation of multi-feedstock biorefineries entered the market processing from 500 t (pilot scale) up to 20 kt (industrial scale) of biomass annually. Their patented process is partially known and starts with a pretreatment of the feedstock using phosphoric acid [19] and applying mild conditions regarding temperature and pressure. Due to the greater versatility and the reduced amount of feedstock required by this biorefinery type, newly organized value chains could be adapted to forest territories with limited forest volumes.…”

Section: Forest Biorefineries Descriptionmentioning

confidence: 99%

Basic Steps to Promote Biorefinery Value Chains in Forestry in Italy

et al. 2021

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Biorefineries are an important pillar to conduct the transition toward a circular bioeconomy. Forestry value chains produce wood biomass from harvesting and processing residues that have potential to be used in biorefineries, but currently, these residues are mostly used for energy generation. New biorefineries and new methodologies of wood fractionation allow the production of high value-added products based on carbohydrates and lignin. However, biorefineries based on lignocellulosic feedstock are still few in European countries and even less in Italy. The present study analyses the processes involved in a scenario of establishment of forest biorefineries, reviewing the main components and the actual organization of forestry value chains in Italy. The aim is to have a general vision, to identify and to focus the possibilities of the actual value chains and to fill gaps. The development of the territories is thought of in a perspective of a broader repertoire and more branched value chains than simple energy-generation end use, reviewing the tool for a feasibility study that could potentially involve lignocellulosic biorefineries also based on forest-wood industry feedstocks.

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Kaskadennutzung von Lignocellulose: LX-Verfahren trifft auf B. coagulans

Cited by 2 publications

References 6 publications

Biorefinery Concept Employing Bacillus coagulans: LX-Lignin and L-(+)-Lactic Acid from Lignocellulose

Biorefinery Concept Employing Bacillus coagulans: LX-Lignin and L-(+)-Lactic Acid from Lignocellulose

Basic Steps to Promote Biorefinery Value Chains in Forestry in Italy

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