Infrared spectroscopy as a tool to evaluate pine woods treated by in situ polymerization with three different precursors and decayed by a white-rot fungus

2021 ◽  
Author(s):  
Andrey Pereira Acosta ◽  
Rafael de Avila Delucis ◽  
Cecília de Oliveira Voloski ◽  
Rafael Beltrame ◽  
Nidria Dias Cruz ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
In Situ Polymerization ◽  
White Rot ◽  
White Rot Fungus

Monitoring Decay of Black Gum Wood (Nyssa Sylvatica) during Growth of the Shiitake Mushroom (Lentinula edodes) Using Diffuse Reflectance Infrared Spectroscopy

2003 ◽  
Vol 57 (5) ◽  
pp. 514-517 ◽  
Author(s):  
Christopher H. Vane
Keyword(s):  
Infrared Spectroscopy ◽  
Diffuse Reflectance ◽  
Lentinula Edodes ◽  
White Rot ◽  
White Rot Fungus ◽  
Shiitake Mushroom ◽  
Absorption Bands ◽  
Diffuse Reflectance Infrared Spectroscopy ◽  
Nyssa Sylvatica ◽  
Diffuse Reflectance Infrared

Abstract diffuse reflectance infrared spectroscopy (DRIFT) and elemental analysis were employed to monitor biodegradation of black gum wood ( Nyssa sylvatica) during growth of the shiitake mushroom ( Lentinula edodes). Black gum was decayed for up to 4.3 years by L. edodes, during which time it was sampled at 19, 31, and 52 months. Biodegraded woods displayed increased % O (w/w) and decreased % C (w/w) relative to the undecayed control. The DRIFT spectra of decayed black gum showed a decrease in relative intensity of absorption bands at 1735 cm−1 assigned to carboxyl functional groups from xylans and an increase in the absorption band at 1640 cm−1 assigned to conjugated carbonyl groups originating from lignin. Xylan decay was rapid initially but slowed after 19 months; however, oxidative decay of the lignin side chains occurred throughout the 52-month decay period. Overall elemental and DRIFT data show that both polysaccharides and lignin were decayed during cultivation of the edible white-rot fungus.

scholarly journals Polyaniline-deposited cellulose fiber composite prepared via in situ polymerization: enhancing adsorption properties for removal of meloxicam from aqueous media

RSC Advances ◽  
2017 ◽  
Vol 7 (21) ◽  
pp. 12639-12649 ◽  
Author(s):  
Flávia Viana Avelar Dutra ◽  
Bruna Carneiro Pires ◽  
Tienne Aparecida Nascimento ◽  
Valdir Mano ◽  
Keyller Bastos Borges
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Infrared Spectroscopy ◽  
In Situ Polymerization ◽  
Fiber Composite ◽  
Aqueous Media ◽  
Cellulose Fiber ◽  
Adsorption Properties ◽  
Scanning Electron

Polyaniline (PAni), cellulose fiber (CF) and a PAni–CF composite, which were characterized by infrared spectroscopy, scanning electron microscopy and thermogravimetry, were investigated in adsorption studies of meloxicam (MLX) from aqueous media.

scholarly journals Fungal decay resistance of wood reacted with phosphorus pentoxide-amine system

Holzforschung ◽  
2004 ◽  
Vol 58 (3) ◽  
pp. 311-315 ◽  
Author(s):  
H.-L. Lee ◽  
G.C. Chen ◽  
R.M. Rowell
Keyword(s):  
Brown Rot ◽  
Decay Resistance ◽  
Phosphorus Pentoxide ◽  
White Rot ◽  
White Rot Fungus ◽  
Gloeophyllum Trabeum ◽  
Brown Rot Fungus ◽  
Nitro Derivatives ◽  
Amine System

Abstract Resistance of wood reacted in situ with phosphorus pentoxide-amine to the brown-rot fungus Gloeophyllum trabeum and white-rot fungus Trametes versicolor was examined. Wood reacted with either octyl, tribromo, or nitro derivatives were more resistant to both fungi. Threshold retention values of phosphoramide-reacted wood to white-rot fungus T. versicolor ranged from 2.9 to 13.3 mmol, while these for brown-rot fungus G. trabeum ranged from 8.1 to 19.2 mmol. Wood reacted with phosphoramide tested to be more resistant to white-rot than brown-rot attack.

scholarly journals Fungi consortia in situ biodegradation of xenobiotic, military shooting range, Kachia, Kaduna, Nigeria

2020 ◽  
Vol 7 (6) ◽  
pp. 246-274
Author(s):  
Ayodele A Otaiku ◽  
AI Alhaji
Keyword(s):  
Heavy Metal ◽  
Aspergillus Niger ◽  
Trametes Versicolor ◽  
Fungal Species ◽  
White Rot ◽  
White Rot Fungus ◽  
Rrna Gene ◽  
P450 Monooxygenase ◽  
Significant Difference

A major limitation of the white-rot fungus is its sensitivity during biodegradation of mixed matrix explosive pollutants and the scale of Kachia military shooting since 1967, Nigeria. The amplified 16S rRNA gene of each microbial isolate was processed for sequencing and characterization with Gene Bank database. Fungal species heavy metal reduction in increasing order of Aspergillus niger > Trametes versicolor > Rhizopus spp > Phanorochate chrysoporium > Penicillium spp were identified. The total explosive contents shows a significant difference for all locations in both dry and wet seasons (P<0.05) using Anova test. Microbial fungi consortium (MFC) bioremediate heavy metal significantly at 61.7% relative to isolated fungi species because of the lateral gene transfer/co-metabolism, where Trametes versicolor and Aspergillus niger act as gene mediators. MFC growth in 1% mineral salt medium munitions was significance than fungal species isolate. Deploying Myco Bio-augmentation / Phytoremediation/Biosimulation (Myco B-P-B) techniques to optimize the RDX and HMX characterized by a higher Nitrogen/Carbon ratio since fungi lack the beta-glucuronidase (GUS) gene to utilize carbon source directly. Pollutants bio-stimulation will enhances co-metabolism by MFC. Plant detoxification capabilities can be improved using fungi genes laccases and cytochrome P450 monooxygenase expressed effectively in plants using protoplast fusion

scholarly journals Elucidation of In Situ Ligninolysis Mechanisms of the Selective White-Rot Fungus Ceriporiopsis subvermispora

2019 ◽  
Vol 7 (19) ◽  
pp. 16757-16764 ◽  
Author(s):  
Gijs van Erven ◽  
Roelant Hilgers ◽  
Pieter de Waard ◽  
Erik-Jan Gladbeek ◽  
Willem J. H. van Berkel ◽  
...  
Keyword(s):  
White Rot ◽  
White Rot Fungus ◽  
Ceriporiopsis Subvermispora

scholarly journals Fourier transform infrared spectroscopy in treated woods deteriorated by a white rot fungus

2018 ◽  
pp. 0-0
Author(s):  
Ezequiel Gallio ◽  
Paula Zanatta ◽  
Débora Duarte Ribes ◽  
Marília Lazarotto ◽  
Darci Alberto Gatto ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fourier Transform Infrared Spectroscopy ◽  
Fourier Transform Infrared ◽  
White Rot ◽  
White Rot Fungus

scholarly journals Properties of Polystyrene Clay Nanocomposites Prepared Using Two New Imidazolium Surfactants

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Giovanna Di Pasquale ◽  
Antonino Pollicino
Keyword(s):  
Infrared Spectroscopy ◽  
Chain Length ◽  
Polymer Matrix ◽  
Alkyl Chain ◽  
In Situ Polymerization ◽  
Alkyl Chain Length ◽  
Clay Nanocomposites ◽  
Uv Aging ◽  
Rheological Analysis

Montmorillonite/polystyrene nanocomposites were prepared by in situ photopolymerization of styrene in the presence of 2% by weight of clay organomodified by two new imidazolium surfactants having in their structure an alkyl chain with 20 or 22 carbon atoms, respectively. Thermogravimetry showed that the new surfactants are more thermally stable than conventional alkylammonium surfactants. The properties of the obtained nanocomposites were compared with those of pristine polystyrene, with those of a microcomposite obtained by in situ polymerization of styrene in the presence of unmodified clay, and with those of a nanocomposite obtained starting from an organomodified clay with a short alkyl chain (12 carbon atoms) imidazolium surfactant. XRD, TEM, and rheological analysis showed that the clay/PS nanocomposites have a mixture of intercalated and partially exfoliated structure layers, where the higher the surfactant alkyl chain length, the higher the exfoliation degree. Kinetics curve of accelerated UV aging, obtained by following through infrared spectroscopy the increase of carbonyl functions during aging, showed that the rate of photooxidation of clay containing samples is higher than neat polystyrene. The rate is higher as a function of the degree of dispersion of the filler in the polymer matrix.

Effect of Neem Oil (Azadirachtin) Against White Rot Fungus (Polyporous Versicolor) in Wood Plastic Particle Board

2012 ◽  
Vol 3 (1) ◽  
pp. 20-21
Author(s):  
A.Sangeetha A.Sangeetha ◽  
◽  
K.Thanigai K.Thanigai ◽  
Narasimhamurthy Narasimhamurthy ◽  
S.K.Nath S.K.Nath
Keyword(s):  
White Rot ◽  
White Rot Fungus ◽  
Particle Board ◽  
Neem Oil ◽  
Plastic Particle

Effects of White Rot Fungus Physisporinus sp., Isolated in Japan, on Styrene-butadiene Rubber

2020 ◽  
Vol 93 (9) ◽  
pp. 289-292
Author(s):  
Yumi SHIMIZU ◽  
Shuma SATHO ◽  
Taro NAKAJIMA ◽  
Hiroaki KOUZAI ◽  
Kiminori SHIMIZU
Keyword(s):  
White Rot ◽  
White Rot Fungus ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Styrene Butadiene
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