Hydrogenation of crude and purified <scp>d</scp>-glucosone generated by enzymatic oxidation of <scp>d</scp>-glucose

Lassfolk, Robert; Aho, Atte; Murzin, Dmitry Yu.; Leino, Reko

doi:10.1039/d0ra05512c

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…As opposed to isomerization reaction, oxidation of glucose to glucosone can be driven to completion, and glucoson's aldehyde group can be further reduced with high specificity to a hydroxyl leading to fructose (Figure 3). The second step can be performed either by chemical hydrogenation [50] or enzymatically by an aldose reductase [49]. Recently, more applications of glucosone started to be developed, for example, it has been shown, that certain fine chemicals such as kojic acid could potentially be produced from this source (Figure 3) [51].…”

Section: Glucose Conversionmentioning

confidence: 99%

Enzymes – Key Elements of the Future Biorefineries

Birikh¹,

Michine²,

Heikkilä³

et al. 2022

Biorefineries - Selected Processes

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The biorefinery concept in its modern meaning has emerged after it has become apparent that biofuel production from non-food biomass is struggling for economic viability. Lignocellulosic biomass is more recalcitrant and more complex than the starch-based feedstocks used for food. The former, therefore, calls for a more complex approach to its utilization. This chapter reflects MetGen’s vision of the future development of biorefineries. We will discuss the zero-waste approach to lignocellulosic biomass utilization and various ways to valorize the resulting streams to boost the economic viability of the biorefinery. We will mostly explore the relevant enzyme-based approaches and will make a special focus on lignin valorization. Enzymatic and cell-based approaches to sugar valorization will be discussed as well.

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Section: Glucose Conversionmentioning

confidence: 99%

Enzymes – Key Elements of the Future Biorefineries

Birikh¹,

Michine²,

Heikkilä³

et al. 2022

Biorefineries - Selected Processes

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“…The impurities from hydrolysis of cellulose as well as the side products generated during glucose oxidation need to be removed for durable catalytic systems. 98,109,110 Enzyme residuals in crude glucose often induces isomerization of sugars and poisons metal catalysts, leading to poor selectivity toward oxidation products. Besson and co-workers studied the influence of residues in softwood hemicellulose hydrolysates on catalytic activity, selectivity, and stability of Pt/C catalysts during the oxidation process.…”

Section: ■ Introductionmentioning

confidence: 99%

Chemical Synthesis of Adipic Acid from Glucose and Derivatives: Challenges for Nanocatalyst Design

Jin

Liu

Zhang

et al. 2020

ACS Sustainable Chem. Eng.

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Adipic acid is an essential building block for the nylon industry, but its production continues to rely on fossil-derived benzene and generates a substantial amount of N 2 O every year. Recognizing the environmental impact of conventional adipic acid production and motivated by societal interests toward a sustainable future, the production of adipic acid should switch toward a renewable feedstock and proceed with a nitric acid-free protocol. In light of this transition, glucose emerges as a suitable feedstock to replace benzene for bioadipic acid production. It can be chemically converted into bioadipic acid via two different routes, forming either glucaric acid or 2,5-furandicarboxylic acid as the respective key intermediates. However, these transformations are challenged by various issues, such as retro-aldol condensation, which fragments glucose into smaller organic byproducts, and catalyst instability, which compromises the reaction rates. This perspective addresses the potentials and challenges in nanocatalyst design and discusses how catalyst morphology tailoring and metal−support interaction tuning can be revised systematically to maximize the yield of bioadipic acid. The influence of catalyst structures on selective activation of C−H (oxidation) and C−O bond (hydrogenolysis) of the intermediates is critically discussed. The electronic features of bimetallic and metal−acid/base hybridized catalysts on C−H and C−O bond activation have been correlated in this work. The goal of this perspective aims to provide insights on novel nanocatalysts designed to improve bioadipic acid production from sustainable feedstocks.

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Hydrogenation of crude and purified d-glucosone generated by enzymatic oxidation of d-glucose

Abstract: Investigation on the hydrogenation of both chromatographically purified and crude d-glucosone directly from its enzymatic production process to yield d-fructose.

Cited by 2 publications

References 27 publications

Enzymes – Key Elements of the Future Biorefineries

Enzymes – Key Elements of the Future Biorefineries

Chemical Synthesis of Adipic Acid from Glucose and Derivatives: Challenges for Nanocatalyst Design

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