Production of acetol and lactic acid from cellulose hydrogenolysis over Sn-Fe@C catalysts

李思婵,; 邓玉龙,; 王海永,; 王晨光,; 刘琪英,

doi:10.1016/s1872-5813(21)60153-6

Cited by 4 publications

(2 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fact that acetol is produced by this organism suggests that tweaking the genetic repertoire of the 1,2-PD bypass in E. hormaechei might engender the biosynthesis of this important bulk chemical. Furthermore, acetol is an important industrial chemical used as a pharmaceutical intermediate and a food additive and is currently derived solely from petrochemicals [ 78 ]. Notably, using bioinformatics, we determined that the glycerol dehydrogenase gene ( gldA ), of which the protein product catalyzes the conversion of acetol to 1,2-PD, is present in the genome of E. hormaechei ( Figure 8 , Table 5 ).…”

Section: Discussionmentioning

confidence: 99%

Whole-Genome Sequence and Fermentation Characteristics of Enterobacter hormaechei UW0SKVC1: A Promising Candidate for Detoxification of Lignocellulosic Biomass Hydrolysates and Production of Value-Added Chemicals

Kumar,

Agyeman-Duah,

Ujor

2023

Bioengineering

View full text Add to dashboard Cite

Enterobacter hormaechei is part of the Enterobacter cloacae complex (ECC), which is widespread in nature. It is a facultative Gram-negative bacterium of medical and industrial importance. We assessed the metabolic and genetic repertoires of a new Enterobacter isolate. Here, we report the whole-genome sequence of a furfural- and 5-hydroxymethyl furfural (HMF)-tolerant strain of E. hormaechei (UW0SKVC1), which uses glucose, glycerol, xylose, lactose and arabinose as sole carbon sources. This strain exhibits high tolerance to furfural (IC50 = 34.2 mM; ~3.3 g/L) relative to Escherichia coli DH5α (IC50 = 26.0 mM; ~2.5 g/L). Furfural and HMF are predominantly converted to their less-toxic alcohols. E. hormaechei UW0SKVC1 produces 2,3-butanediol, acetoin, and acetol, among other compounds of industrial importance. E. hormaechei UW0SKVC1 produces as high as ~42 g/L 2,3-butanediol on 60 g/L glucose or lactose. The assembled genome consists of a 4,833,490-bp chromosome, with a GC content of 55.35%. Annotation of the assembled genome revealed 4586 coding sequences and 4516 protein-coding genes (average length 937-bp) involved in central metabolism, energy generation, biodegradation of xenobiotic compounds, production of assorted organic compounds, and drug resistance. E. hormaechei UW0SKVC1 shows considerable promise as a biocatalyst and a genetic repository of genes whose protein products may be harnessed for the efficient bioconversion of lignocellulosic biomass, abundant glycerol and lactose-replete whey permeate to value-added chemicals.

show abstract

Section: Discussionmentioning

confidence: 99%

Whole-Genome Sequence and Fermentation Characteristics of Enterobacter hormaechei UW0SKVC1: A Promising Candidate for Detoxification of Lignocellulosic Biomass Hydrolysates and Production of Value-Added Chemicals

Kumar,

Agyeman-Duah,

Ujor

2023

Bioengineering

View full text Add to dashboard Cite

show abstract

“…Here, we obtained 12 % yield of hydroxyacetone from cellulose (Figure 11), which is notably lesser (35-60 %) than in recent studies using bi-metallic systems including Ni-SnO x /Al 2 O 3 , [36] SnÀ Si/C, [37] SnÀ Ni/SiO 2 , [38] or SnFe/C under similar conditions. [39] After this first stage, the 30 %W 2 C/ AC catalyst was removed by filtration, then 50 mL of NH 3 aqueous solution and 0.70 g of 7.5 %Ru-36 %W x C/AC catalyst were added in the reaction mixture containing hydroxyacetone among all other components (sugars, liquefied cellulosic oligomers…). Here, a certain reactivity was observed and it was possible to obtain 2-aminopropanol and propylene glycol in 18 and 27 % yield respectively, relative to hydroxyacetone, and corresponding to 2 % yield of 2-aminopropanol relative to cellulose.…”

Section: Reactivity Of Hydroxyacetone Biosourced Precursorsmentioning

confidence: 99%

Carbon‐Supported Ru‐Ni and Ru‐W Catalysts for the Transformation of Hydroxyacetone and Saccharides into Glycol‐Derived Primary Amines

Boulos,

Goc,

Vandenbrouck

et al. 2024

ChemSusChem

View full text Add to dashboard Cite

Nitrogen‐containing molecules are used for the synthesis of polymers, surfactants, agrochemicals, and dyes. In the context of green chemistry, it is important to form such compounds from bioresource. Short‐chain primary amines are of interest for the polymer industry, like 2‐aminopropanol, 1‐aminopropan‐2‐ol, and 1,2‐diaminopropane. These amines can be formed through the amination of oxygenated substrates, preferably in aqueous phase. This is possible with heterogeneous catalysts, however, effective systems that allow reactions under mild conditions are lacking. We report an efficient catalyst Ru‐Ni/AC for the reductive amination of hydroxyacetone into 2‐aminopropanol. The catalyst has been reused during 3 cycles demonstrating a good stability. As a prospective study, extension to the reactivity of (poly)carbohydrates has been realized. Despite a lesser efficiency, 2‐aminopropanol (9% yield of amines) has been formed from fructose, the first example from a carbohydrate. This was possible using a 7.5%Ru‐36%WxC/AC catalyst, composition allowing a one‐pot retro‐aldol cleavage into hydroxyacetone and reductive amination. The transformation of cellulose through sequential reactions with a combination of 30%W2C/AC and 7.5%Ru‐36%WxC/AC system gave 2% of 2‐aminopropanol, corresponding to the first example of the formation of this amine from cellulose with heterogeneous catalysts.

show abstract

Preparation of the PdAg/CDs composite and its catalytic performance in the hydrogenolysis of glucose

CHEN,

WANG,

BAO

et al. 2023

Journal of Fuel Chemistry and Technology

View full text Add to dashboard Cite

Production of acetol and lactic acid from cellulose hydrogenolysis over Sn-Fe@C catalysts

Cited by 4 publications

References 25 publications

Whole-Genome Sequence and Fermentation Characteristics of Enterobacter hormaechei UW0SKVC1: A Promising Candidate for Detoxification of Lignocellulosic Biomass Hydrolysates and Production of Value-Added Chemicals

Whole-Genome Sequence and Fermentation Characteristics of Enterobacter hormaechei UW0SKVC1: A Promising Candidate for Detoxification of Lignocellulosic Biomass Hydrolysates and Production of Value-Added Chemicals

Carbon‐Supported Ru‐Ni and Ru‐W Catalysts for the Transformation of Hydroxyacetone and Saccharides into Glycol‐Derived Primary Amines

Preparation of the PdAg/CDs composite and its catalytic performance in the hydrogenolysis of glucose

Contact Info

Product

Resources

About