scholarly journals Decolorization of Heat Treatment Liquor of Waste Sludge by the White Rot Fungus Coriolus hirsutus.

1997 ◽  
Vol 33 (1) ◽  
pp. 35-45 ◽  
Author(s):  
NAOYUKI MIYATA ◽  
MASAKO YAMASHITA ◽  
MICHIHIKO IKE ◽  
KEISUKE IWAHORI ◽  
MASANORI FUJITA
Keyword(s):  
Heat Treatment ◽  
White Rot ◽  
White Rot Fungus ◽  
Waste Sludge ◽  
Coriolus Hirsutus

Biotreatment of persistent substances using effective microorganisms

2000 ◽  
Vol 42 (12) ◽  
pp. 93-106 ◽  
Author(s):  
M. Fujita ◽  
M. Ike ◽  
Y. Kawagoshi ◽  
N. Miyata
Keyword(s):  
Polyvinyl Alcohol ◽  
Oxidative Degradation ◽  
White Rot ◽  
White Rot Fungus ◽  
Enzymatic Reactions ◽  
Degradation Mechanisms ◽  
Effective Microorganisms ◽  
Degradation Reactions ◽  
Coriolus Hirsutus ◽  
Degrading Bacteria

To efficiently biotreat the persistent substances contained in wastewater, it is necessary to fully elucidate the degradation mechanisms of the substances by specific degrading microorganisms. Especially clarifying the enzymatic reactions responsible for the degradation of persistent substances is very important. Here three different kinds of aerobic or oxidative degradation reactions of persistent substances are introduced. Polyvinyl alcohol (PVA) degradation by Pseudomonas vesicularis var. povalolyticus strain PH, co-oxidative degradation of trichloroethylene (TCE) by a variety of phenol degrading bacteria, and decolorization of melanoidin by a white rot fungus Coriolus hirsutus were shown.

Kinetics of the Growth of White-Rot Fungus Coriolus hirsutus in Soil for Bioremediation

2008 ◽  
Vol 41 (2) ◽  
pp. 100-107 ◽  
Author(s):  
Katsuhiro Ueshima ◽  
Kazuhiro Asami ◽  
Kazuhisa Ohtaguchi
Keyword(s):  
White Rot ◽  
White Rot Fungus ◽  
Coriolus Hirsutus ◽  
Kinetics Of

scholarly journals Molecular Analysis of a Laccase Gene from the White Rot Fungus Pycnoporus cinnabarinus

1998 ◽  
Vol 64 (5) ◽  
pp. 1766-1772 ◽  
Author(s):  
Claudia Eggert ◽  
Peter R. LaFayette ◽  
Ulrike Temp ◽  
Karl-Erik L. Eriksson ◽  
Jeffrey F. D. Dean
Keyword(s):  
Genomic Sequence ◽  
Oxidation Potential ◽  
White Rot ◽  
White Rot Fungus ◽  
Coding Region ◽  
Pycnoporus Cinnabarinus ◽  
Eukaryotic Promoter ◽  
Coriolus Hirsutus ◽  
Type 1 Copper ◽  
Copper Center

ABSTRACT It was recently shown that the white rot basidiomycetePycnoporus cinnabarinus secretes an unusual set of phenoloxidases when it is grown under conditions that stimulate ligninolysis (C. Eggert, U. Temp, and K.-E. L. Eriksson, Appl. Environ. Microbiol. 62:1151–1158, 1996). In this report we describe the results of a cloning and structural analysis of the laccase-encoding gene (lcc3-1) expressed by P. cinnabarinus during growth under xylidine-induced conditions. The coding region of the genomic laccase sequence, which is preceded by the eukaryotic promoter elements TATA and CAATA, spans more than 2,390 bp. The corresponding laccase cDNA was identical to the genomic sequence except for 10 introns that were 50 to 60 bp long. A sequence analysis indicated that the P. cinnabarinus lcc3-1 product has a Phe residue at a position likely to influence the reduction-oxidation potential of the enzyme’s type 1 copper center. The P. cinnabarinus lcc3-1 sequence was most similar to the sequence encoding a laccase from Coriolus hirsutus (level of similarity, 84%).

scholarly journals Development of the Trametes versicolor (L.) C. G. Lloyd. fungus on the wood of thermoregulated Pinus taeda L.

2020 ◽  
Vol 19 (2) ◽  
pp. 112-116
Author(s):  
Luana Maria dos Santos ◽  
Erick Martins Nieri ◽  
Flávia Alves Pereira ◽  
Sandra Mara Krefta ◽  
Jéssica Batista da Mata
Keyword(s):  
Heat Treatment ◽  
Pinus Taeda ◽  
Trametes Versicolor ◽  
Treated Wood ◽  
White Rot ◽  
White Rot Fungus ◽  
Planted Forests ◽  
Heat Treated ◽  
Loss Of Mass ◽  
Pinus Taeda L

The companies in the forestry sector seek highly durable wood, prioritizing the use of planted forests, and the thermal treatment is a viable alternative to provide quality to these woods. Thus, the objective of the study was to evaluate the resistance of the heat-treated Pinus taeda L wood by the attack of white rot fungus Trametes versicolor (L.) CG Lloyd. The P. taeda L. wood was deployed in joinery to obtain samples with dimensions of 30 x 15 x 2.5 cm (length x width x thickness), being treated at temperatures of 140, 160 and 180ºC. From these, 1.0 x 1.0 x 1.0 cm specimens were obtained and subjected to the fungus for six weeks. The accelerated rot test was carried out in accordance with the ASTM D2017 standard. The experiment was conducted in a completely randomized design with four treatments (T1 = 0; T2 = 140°C; T3 = 160°C and T4 = 180°C) and nine replications. The loss of mass caused by the fungus was less in heat treated wood. On the other hand, the increase in temperature did not provide greater resistance to the material. In conclusion, heat treatment has reduced the degradation caused by the white rot fungus Trametes versicolor. Heat treatment at 140°C is indicated to avoid loss of mass in P. taeda L. woods submitted to the fungus T. versicolor. All treated woods were classified as highly resistant.

scholarly journals The Resistance of Modified Manii Wood with Boric acid and Chitosan/Glycerol and Heating Against Fungi and Termites

2021 ◽  
Vol 891 (1) ◽  
pp. 012010
Author(s):  
N Istriana ◽  
T Priadi
Keyword(s):  
Heat Treatment ◽  
Boric Acid ◽  
Schizophyllum Commune ◽  
White Rot ◽  
Wood Preservation ◽  
White Rot Fungus ◽  
Subterranean Termites ◽  
Durability Test ◽  
Decay Fungi ◽  
Dry Wood

Abstract Manii wood (Maesopsiss eminii Engl.) is a fast grown species that has low durability (class IV) and requires preservation. Boric acid is generally used in wood preservation. However, its application needs to be combined with other treatments to prevent from leaching. This study aimed to evaluate the resistance of manii wood after double impregnation of boric acid and chitosan or glycerol and heat treatment. Heating temperatures were 70ºC and 140ºC. The durability test was carried out against white rot fungus (Schizophyllum commune), dry wood termites (Cryptotermes cynocephalus), subterranean termites (Coptotermes curvignathus) according to SNI 7207-2014 standard, and field test based on ASTM D 1758-08 standard. The retention of boric acid in manii wood was 15,2 ± 1,0 kg ma−3. The interaction of boric acid and chitosan/glycerol impregnations and heat treatment significantly affected the wood resistance against decay fungi and termites. Impregnation of boric acid and glycerol by heating at 140ºC increased the resistance of wood against dry wood and subterranean termites. Double impregnation of boric acid and chitosan followed by heating at 140ºC was the best treatment in this research that improved significantly the resistance of manii wood against white rot fungi, dry wood termites and subterranean termites.

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