Thermal decomposition kinetics of wheat straw treated by Phanerochaete chrysosporium

Zeng, Jijiao; Singh, Deepak; Chen, Shulin

doi:10.1016/j.ibiod.2011.01.004

Cited by 35 publications

(21 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Up to 300 °C, there is the breaking of bonds α-β-aryl-alkyl-ether. This process is followed by aromatic ring bonds breakage and finally a rupture of carbon-carbon bonds between the structural units of lignin at temperatures from 370 to 400 °C [34]. In this way, when the irradiation dose increases between 600 and 3500 kGy then the hemicellulose and cellulose content falls more rapidly as compared with the non-irradiated substrate.…”

Section: Thermal Behaviormentioning

confidence: 99%

Gamma Irradiation Induced Degradation of Orange Peels

et al. 2012

View full text Add to dashboard Cite

Abstract:In this study, gamma irradiation induced degradation of orange peels (OP) was investigated. The lignocellulosic biomass degradation was carried out at doses of 0 (control), 600, 1800 and 3500 kGy using a Co-60 gamma radiation source. The samples were tested for total and reducing sugars. The concentrations of total sugars ranged from 0.530 g•g but not significantly, which suggests that lignocellulose and sugars profiles were partially degraded after gamma irradiation.

show abstract

Section: Thermal Behaviormentioning

confidence: 99%

Gamma Irradiation Induced Degradation of Orange Peels

et al. 2012

View full text Add to dashboard Cite

show abstract

“…The pyrolysis process in straw started at approximately 200 °C, and the mass loss of straw before this stage was due to the loss of bound moisture (Zeng et al 2011). The degradation of hemicellulose was the main reason for the mass loss of straw under the humidity treatments (Fig.…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

Straw Degradation Behaviors under Different Conditions of Relative Air Humidity and Ultraviolet-A Irradiation

Huang

et al. 2016

BioResources

View full text Add to dashboard Cite

In this study, straw was degraded continuously for 150 days under one of three levels of relative air humidity (RH) (90%, 60%, or 30%) to estimate the effect of humidity on straw biodegradation. Moreover, straw was treated with ultraviolet (UV)-A irradiation + 90% RH for 180 days to evaluate the interaction between photodegradation and biodegradation. The effects of 30% and 60% RH on straw degradation was inconspicuous. Straw mass losses at 90% RH and UV-A + 90% RH were 18.5% and 39.1%, respectively. BIOLOG analysis showed that filamentous fungi played a major role in straw biodegradation. Thermogravimetric analysis showed that treatment with UV-A + 90% RH tended to increase the maximum pyrolysis rate and decreased the initial pyrolysis temperature. Compared with 90% RH, infrared spectra analysis showed that functional groups of UV-A + 90% RH treatment, e.g., -CH, -C=O, and the benzene ring structure, clearly decreased. Strawdegrading bacteria were observed by scanning electron microscopy at the beginning and end of UV-A + 90% RH treatment. Results highlight the role of humidity in the degree of straw biodegradation by filamentous fungi. Straw degradation is accelerated by the combined action of photodegradation and biodegradation under high UV-A irradiation and high humidity.

show abstract

“…GC/MS allows for separation and identification of these organic molecules through selected m/z ratio and retention time. As an advanced analytical technique, Py-GC/MS is widely used to characterize the chemical distribution changes of lignocellulosic biomass (Camarero et al 1994;Zeng et al 2011). In this study, PyGC/MS was applied to analyze the lignin compositional changes in (A) untreated wheat straw control and (B) S. viridosporus T7A spent wheat straw (Fig.…”

Section: Py-gc/ms Analysismentioning

confidence: 99%