FTIR and XPS analysis of the changes in bamboo chemical structure decayed by white-rot and brown-rot fungi

Xu, Guangbiao; Wang, Lihai; Liu, Junliang; Wu, Jinzhuo

doi:10.1016/j.apsusc.2013.05.065

Cited by 187 publications

(83 citation statements)

References 25 publications

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“…Although white-rot fungi have received the most attention as potential biological pretreatment options for deconstructing lignocellulose in bamboo, they are also known to mineralize lignin during delignification leading to lignin structures that are not readily converted to addedvalue lignin co-products. More recent evidence suggests that brownrot fungi may serve a potential role in bamboo pretreatment strategies [193][194][195][196][197]. Using FT-IR, it was shown that the brown-rot fungus Gloeophyllum trabeum could efficiently breakdown p-hydroxyphenyl units in the lignin found in the middle lamella of Moso bamboo [194].…”

Section: Bamboo Fungimentioning

confidence: 99%

Bioethanol: Feedstock Alternatives, Pretreatments, Lignin Chemistry, and the Potential for Green Value-Added Lignin Co-Products

MKY¹,

AX²,

S³

2015

J Environ Anal Chem

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Section: Bamboo Fungimentioning

confidence: 99%

Bioethanol: Feedstock Alternatives, Pretreatments, Lignin Chemistry, and the Potential for Green Value-Added Lignin Co-Products

MKY¹,

AX²,

S³

2015

J Environ Anal Chem

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“…The portions of the FTIR spectra displayed notable changes (Fig. 3) with the aromatic skeleton of lignin peaks at 1600, 1510 and 1421 cm −1 , all decreasing, and the 1510 cm −1 peak also splitting, indicating changes in the skeleton of lignin (Xu et al 2013;Zhou et al 2011). The peak at 1460 cm −1 is the bending vibration of C-H bond connected on benzene ring, which decreased after treatment, indicating a change in C-H bonds connected on benzene ring.…”

Section: Ftir Analysesmentioning

confidence: 99%

Enzymatic biocatalysis of bamboo chemical constituents to impart antimold properties

Prosper¹,

Zhang²,

Wu³

et al. 2018

Wood Sci Technol

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Current antimold agents that capitalize on broad spectrum biocidal toxicity for their efficacy can create potential hazards in the environment, as in many cases these biocides are not chemically bonded to the wood. They can therefore leach into the ecosystem to jeopardize off-target organisms. In this study, "bio-catalysis" of potassium iodide (KI) was used to impart non-diffusible antimold properties to 4-year-old bamboo, and the mechanisms of how this system works against Aspergillus niger and Trichoderma viride fungi were also studied. In addition to the bamboo block material tested, powdered samples of lignin, cellulose and hemicellulose were studied to better understand binding of iodide to the chemical subcomponents of the bamboo cell walls. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analyses were used to investigate the sample chemistries and antimold mechanisms, respectively. The results revealed that a specific ratio of laccase enzyme with a laccase-mediator functioned best in binding KI to bamboo. Lignin samples showed the greatest changes in FTIR, especially relative to the methoxyl groups and aromatic skeleton. Additionally, enzyme activity on lignin moieties showed much more differences than on hemicellulose and cellulose after biocatalyzed KI modification. Moreover, the XPS binding energy readings of 621.1 and 632.7 eV (Aromatic region) for lignin were consistent with I-C binding associated with its phenolic structures. While the 620.7 eV (Aliphatic region) suggested

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“…A broad band of hydroxyl and methoxyl groups are observed around 3336 cm −1 and 2895 cm −1 respectively. The strong intensity bands at 1602 to 1504 cm −1 was attribute to the aromatic skeleton from lignin component [ 17,25,26,27]. The peak value at 1240 cm −1 is due to phenol ether bonds of lignin while 1158 cm −1 and 1031cm −1 are due to structural contribution of cellulose and hemicellulose [26].…”

Section: Fig 1 Tga For [Cneim][br]mentioning

confidence: 99%

“…The strong intensity bands at 1602 to 1504 cm −1 was attribute to the aromatic skeleton from lignin component [ 17,25,26,27]. The peak value at 1240 cm −1 is due to phenol ether bonds of lignin while 1158 cm −1 and 1031cm −1 are due to structural contribution of cellulose and hemicellulose [26]. A band of range (896 -561) cm −1 represent the alkane group (CH-CH) and the deformation of cellulose [26].…”

Section: Fig 1 Tga For [Cneim][br]mentioning

confidence: 99%

“…The peak value at 1240 cm −1 is due to phenol ether bonds of lignin while 1158 cm −1 and 1031cm −1 are due to structural contribution of cellulose and hemicellulose [26]. A band of range (896 -561) cm −1 represent the alkane group (CH-CH) and the deformation of cellulose [26]. The thermal stability of treated and untreated bamboo was determined using TGA analysis.…”

Section: Fig 1 Tga For [Cneim][br]mentioning

confidence: 99%

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Synthesis and application of dual functionalized task specific ionic liquid for bamboo dissolution

et al. 2017

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Abstract.A new class of dual functionalized imidazolium based ionic liquid (IL) namely 3-(2-cyano-ethyl)-1-(2-ethoxy-ethyl)-3-imidazolium bromide [CNEIM][Br], was synthesized and characterized to study their potential in bamboo dissolution. The chemical structure for the IL was characterized using NMR ( 1 H and 13 C). Thermal properties, surface morphology and functional group of the native bamboo and IL treated bamboo were analyzed by Thermal Gravimetric Anaylysis (TGA), Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR) respectively. The new IL was able to dissolve up to 5wt% of bamboo biomass within 48 hours and 100 o C.

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FTIR and XPS analysis of the changes in bamboo chemical structure decayed by white-rot and brown-rot fungi

Cited by 187 publications

References 25 publications

Bioethanol: Feedstock Alternatives, Pretreatments, Lignin Chemistry, and the Potential for Green Value-Added Lignin Co-Products

Bioethanol: Feedstock Alternatives, Pretreatments, Lignin Chemistry, and the Potential for Green Value-Added Lignin Co-Products

Enzymatic biocatalysis of bamboo chemical constituents to impart antimold properties

Synthesis and application of dual functionalized task specific ionic liquid for bamboo dissolution

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