Microwave-assisted conversion of carbohydrates. State of the art and outlook

Richel, Aurore; Praly, Laurent; Wathelet, Bernard; Wathelet, Jean‐Paul; Paquot, Michel

doi:10.1016/j.crci.2010.04.004

Cited by 58 publications

(25 citation statements)

References 76 publications

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“…The goal of this acid hydrolysis is the solubilisation and its subsequent dehydration to FA, a very interesting fine chemical [4,[48][49][50]. As a consequence, the solid residue coming from this hydrolysis pretreatment is mainly composed of cellulose and lignin, due to significant conversion of hemicelluloses.…”

Section: Resultsmentioning

confidence: 99%

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Midinfrared FT-IR as a Tool for Monitoring Herbaceous Biomass Composition and Its Conversion to Furfural

Galletti

D’Alessio

Licursi

et al. 2015

Journal of Spectroscopy

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A semiquantitative analysis by means of midinfrared FT-IR spectroscopy was tuned for the simultaneous determination of cellulose, hemicellulose, and lignin in industrial crops such as giant reed (Arundo donax L.) and switchgrass (Panicum virgatum L.). Ternary mixtures of pure cellulose, hemicellulose, and lignin were prepared and a direct correlation area/concentration was achieved for cellulose and lignin, whereas indirect correlations were found for hemicellulose quantification. Good correspondences between the values derived from our model and those reported in the literature or obtained according to the official Van Soest method were ascertained. Average contents of 40-45% of cellulose, 20-25% of hemicellulose, and 20-25% of lignin were obtained for different samples of giant reed species. In the case of switchgrass, a content of 36% of cellulose, 28% of hemicellulose, and 26% of lignin was achieved. This analysis was also carried out on giant reed and switchgrass residues after a mild hydrolysis step carried out with dilute hydrochloric acid for the production of furfural with good yield. Reasonable compositional data were obtained, thus allowing an indirect monitoring which helps the optimization of the hydrothermal pretreatment for furfural production from hemicellulose fractions.

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Section: Resultsmentioning

confidence: 99%

“…The application of microwave heating is a fast growing research area where high reaction rates and selectivities can be achieved together with a significant reduction of the reaction time, often by orders of magnitude, and of energy consumption [49,50].…”

Section: Resultsmentioning

confidence: 99%

Midinfrared FT-IR as a Tool for Monitoring Herbaceous Biomass Composition and Its Conversion to Furfural

Galletti

D’Alessio

Licursi

et al. 2015

Journal of Spectroscopy

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“…However, these methods, which are based on the convective-conductive heating from the surface into the interior of the reaction systems, have several drawbacks such as slow heating rate, high energy-consumption and non-uniform heating [237]. In contrast, microwave irradiation produces the internal heating of the reaction systems by the direct coupling of microwave energy with solvents, substrates and catalysts, which can overcome the drawbacks of conventional heating methods [238][239][240]. Thus, in recent years, microwave irradiation has been gradually applied for the hydrolysis of cellulose.…”

Section: Advanced Heating Methodsmentioning

confidence: 99%

Chemocatalytic hydrolysis of cellulose into glucose over solid acid catalysts

Lin

et al. 2015

Applied Catalysis B: Environmental

243

113

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“…Even if widely employed in common organic chemistry, microwaves find however fewer applications in carbohydrate chemistry (Corsaro, 2004;Cioffi, 2008;Richel, 2011a). This fact, usually associated to a high number of unwanted and uncontrolled typical sugars reactions such as carbonisation or browning processes, has been overcame by the design of novel sophisticated microwave reactors.…”

Section: Scope Of This Contributionmentioning

confidence: 99%