Determination of Furfural and Hydroxymethylfurfural Formed From Biomass Under Acidic Conditions

Chi, Congcong; Zeng, Zhen; Chang, Hou‐min; Jameel, Hasan

doi:10.1080/02773810903096025

Cited by 51 publications

(30 citation statements)

References 6 publications

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“…Phenolics absorb at 280 nm due to aromatic rings; however, also heterocyclic aldehydes, particularly furfural and hydroxymethylfurfural, absorb considerably at around 280 nm (but only little at 205 nm). These aldehydes are common products of hot acid degradation of pentoses and hexoses (Hatfield and Fukushima 2005;Chi et al 2009). Hence, greater absorbance at 280 nm relative to 205 nm (i.e.…”

Section: Chemical Stability Parametersmentioning

confidence: 99%

Biochemical determinants of litter quality in 15 species of Sphagnum

2018

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Background and aims Sphagnum mosses are ecosystem engineers that create and maintain boreal peatlands. With unique biochemistry, waterlogging and acidifying capacities, they build up meters-thick layers of peat, reducing competition and impeding decomposition. We quantify within-genus differences in biochemical composition to make inferences about decay rates, related to hummock-hollow and fen-bog gradients and to phylogeny. Methods We sampled litter from 15 Sphagnum species, abundant over the whole northern hemisphere. We used regression and Principal Components Analysis (PCA) to evaluate general relationships between litter quality parameters and decay rates measured under laboratory and field conditions. Results Both concentrations of the polysaccharide sphagnan and the soluble phenolics were positively correlated with intrinsic decay resistance, however, so were the previously understudied lignin-like phenolics. More resistant litter had more of all the important metabolites; consequently, PC1 scores were related to lab mass loss (R 2 = 0.57). There was no such relationship with field mass loss, which is also affected by the environment. PCA also revealed that metabolites clearly group Sphagnum sections (subgenera). Conclusions We suggest that the commonly stated growth-decomposition trade-off is largely due to litter quality. We show a strong phylogenetic control on Sphagnum metabolites, but their effects on decay are affected by nutrient availability in the habitat.

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Section: Chemical Stability Parametersmentioning

confidence: 99%

Biochemical determinants of litter quality in 15 species of Sphagnum

2018

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“…For this purpose the used methods were the same for the initial characterization above mentioned. Furfural production was determined by spectrophotometry methods at 277 nm of wavelength (Chi et al, 2009). …”

Section: Chemical Compositionmentioning

confidence: 99%

Supercritical fluids as a green technology for the pretreatment of lignocellulosic biomass

Daza-Serna

Orrego

Álzate

2016

Bioresource Technology

154

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“…The recovered PEG200 fraction was diluted by dioxane/0.2 M NaOH (v/v = 1:1) and reduced by NaBH4 for one week to eliminate UVabsorbing furans (Chi et al 2009). The reduced sample was adjusted to pH 5.0 with acetic acid, and the absorbance at 280 nm was measured as described above.…”

Section: Measurement Of Lignin Content and Phenolic Hydroxyl Group Comentioning

confidence: 99%

Acidic Solvolysis of Softwood in Recycled Polyethylene Glycol System

Takata¹,

Nge²,

Takahashi³

et al. 2016

BioResources

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The acidic solvolysis of lignocellulose using a glycol solvent such as polyethylene glycol (PEG) is a promising process for separating its components and producing a valuable lignin product that can be used as thermoplastic and fusible materials. To decrease operational costs, a glycol solvent that is used as a solvolysis reagent must be recovered and reused. In the present study, PEG was recovered by the removal of water by evaporation from the supernatant after glycol lignin production by acidic solvolysis of Japanese cedar using PEG with an average molecular weight of 200 (PEG200). The recovered PEG200 worked as a solvolysis reagent and produced glycol lignin with appropriate yield. The thermomechanical analysis of glycol lignin from the fresh and recovered PEG200 systems exhibited two inflection points, which were assigned to a glass transition point (Tg) and a thermal softening point (Ts). The Ts of the glycol lignin from the recovered PEG200 system was higher than that from the fresh PEG200 system. These results suggest that the glycol lignin from the recovered PEG200 system had high thermostability as well as high thermal fusibility.

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Determination of Furfural and Hydroxymethylfurfural Formed From Biomass Under Acidic Conditions

Cited by 51 publications

References 6 publications

Biochemical determinants of litter quality in 15 species of Sphagnum

Biochemical determinants of litter quality in 15 species of Sphagnum

Supercritical fluids as a green technology for the pretreatment of lignocellulosic biomass

Acidic Solvolysis of Softwood in Recycled Polyethylene Glycol System

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