scholarly journals KETAHANAN LIMA JENIS KAYU TERHADAP SERANGAN DELAPAN JENIS JAMUR PELAPUK

2021 ◽  
Vol 39 (1) ◽  
pp. 27-38
Author(s):  
Sihati Suprapti ◽  
Djarwanto Djarwanto ◽  
Esti Rini Satiti ◽  
Lisna Efiyanti
Keyword(s):  
Pycnoporus Sanguineus ◽  
Polyporus Arcularius

Kayu kurang dikenal yang berasal dari hutan alam saat ini merupakan alternatif bahan baku yang digunakan oleh industri perkayuan nasional. Optimalisasi pemanfaatan kayu kelompok ini memerlukan informasi mengenai ketahanan terhadap serangan jamur pelapuk dari setiap jenis kayu yang digunakan. Dalam penelitian ini dilakukan pengujian ketahanan lima jenis kayu kurang dikenal bagian gubal dan teras, dan pengkaratan logam yang berikatan dengan kayu diuji terhadap jamur menggunakan metode Kolle-flask. Kelarutan kayu dalam NaOH 1% dianalisis mengacu pada standar ASTM D 1110-84. Hasil penelitian menunjukkan bahwa Albizia sp. dan Syzygium sp. diklasifikasikan dalam kelompok kayu-tahan (kelas II), Santiria sp. dan Lithocarpus ewyckii termasuk kayu agak-tahan (kelas III), dan Xanthophyllum excelsum termasuk kayu tidak-tahan (kelas IV). Kehilangan berat terbesar terjadi pada kayu gubal, Xanthophyllum excelsum yang diumpankan kepada Pycnoporus sanguineus. Rata-rata kehilangan berat kayu teras lebih rendah (termasuk kelas II) dibandingkan dengan kehilangan berat kayu gubal (Kelas III). Kehilangan berat tertinggi dari kayu yang berikatan dengan sekrup dijumpai pada kayu Syzygium sp. yang disekrup dan diumpankan kepada Polyporus sp. Rata-rata kehilangan berat kayu yang disekrup lebih tinggi dibandingkan dengan kayu tanpa sekrup, sedangkan kehilangan berat tertinggi dari sekrup yang telah berikatan dengan kayu terjadi pada Xanthophyllum excelsum kemudian Syzygium sp. yang diumpankan pada jamur Polyporus arcularius. Didapatkan bubuk karat terbanyak dalam kayu Syzygium sp. yang diumpankan kepada jamur Polyporus arcularius. Lima jenis jamur memiliki kemampuan sedang dan tiga jenis lainnya berkemampuan rendah dalam melapukkan kayu. Pengaruh jamur dalam pengkaratan sekrup semuanya rendah.

scholarly journals Fungal Treatment for the Valorization of Technical Soda Lignin

2021 ◽  
Vol 7 (1) ◽  
pp. 39
Author(s):  
Mariane Daou ◽  
Clementina Farfan Soto ◽  
Amel Majira ◽  
Laurent Cézard ◽  
Betty Cottyn ◽  
...  
Keyword(s):  
Filamentous Fungi ◽  
Structural Changes ◽  
Molar Mass ◽  
Glycoside Hydrolases ◽  
Fungal Treatment ◽  
Industrial Transformation ◽  
Pycnoporus Sanguineus ◽  
Technical Lignin ◽  
Soda Lignin ◽  
Technical Lignins

Technical lignins produced as a by-product in biorefinery processes represent a potential source of renewable carbon. In consideration of the possibilities of the industrial transformation of this substrate into various valuable bio-based molecules, the biological deconstruction of a technical soda lignin by filamentous fungi was investigated. The ability of three basidiomycetes (Polyporus brumalis, Pycnoporus sanguineus and Leiotrametes menziesii) to modify this material, the resultant structural and chemical changes, and the secreted proteins during growth on this substrate were investigated. The three fungi could grow on the technical lignin alone, and the growth rate increased when the media were supplemented with glucose or maltose. The proteomic analysis of the culture supernatants after three days of growth revealed the secretion of numerous Carbohydrate-Active Enzymes (CAZymes). The secretomic profiles varied widely between the strains and the presence of technical lignin alone triggered the early secretion of many lignin-acting oxidoreductases. The secretomes were notably rich in glycoside hydrolases and H2O2-producing auxiliary activity enzymes with copper radical oxidases being induced on lignin for all strains. The lignin treatment by fungi modified both the soluble and insoluble lignin fractions. A significant decrease in the amount of soluble higher molar mass compounds was observed in the case of P. sanguineus. This strain was also responsible for the modification of the lower molar mass compounds of the lignin insoluble fraction and a 40% decrease in the thioacidolysis yield. The similarity in the activities of P. sanguineus and P. brumalis in modifying the functional groups of the technical lignin were observed, the results suggest that the lignin has undergone structural changes, or at least changes in its composition, and pave the route for the utilization of filamentous fungi to functionalize technical lignins and produce the enzymes of interest for biorefinery applications.

scholarly journals Magnetic Pycnoporus sanguineus-Loaded Alginate Composite Beads for Removing Dye from Aqueous Solutions

Molecules ◽  
2014 ◽  
Vol 19 (6) ◽  
pp. 8276-8288 ◽  
Author(s):  
Chih-Hui Yang ◽  
Ming-Cheng Shih ◽  
Han-Chen Chiu ◽  
Keng-Shiang Huang
Keyword(s):  
Aqueous Solutions ◽  
Pycnoporus Sanguineus ◽  
Composite Beads

scholarly journals Natural microbial polysaccharides as effective factors for modification of the catalytic properties of fungal cellobiose dehydrogenase

2021 ◽  
Author(s):  
Justyna Sulej ◽  
Magdalena Jaszek ◽  
Monika Osińska-Jaroszuk ◽  
Anna Matuszewska ◽  
Renata Bancerz ◽  
...  
Keyword(s):  
Catalytic Properties ◽  
Cellobiose Dehydrogenase ◽  
Pycnoporus Sanguineus ◽  
Practical Applications ◽  
Control Value ◽  
Electrochemical Parameters ◽  
Optimum Ph ◽  
Stabilization Effect ◽  
Fungal Polysaccharides ◽  
The Stability

AbstractPolysaccharides are biopolymers composed of simple sugars like glucose, galactose, mannose, fructose, etc. The major natural sources for the production of polysaccharides include plants and microorganisms. In the present work, four bacterial and two fungal polysaccharides (PS or EPS) were used for the modification and preservation of Pycnoporus sanguineus cellobiose dehydrogenase (CDH) activity. It was found that the presence of polysaccharide preparations clearly enhanced the stability of cellobiose dehydrogenase compared to the control value (4 °C). The highest stabilization effect was observed for CDH modified with Rh110EPS. Changes in the optimum pH in the samples of CDH incubated with the chosen polysaccharide modifiers were evidenced as well. The most significant effect was observed for Rh24EPS and Cu139PS (pH 3.5). Cyclic voltammetry used for the analysis of electrochemical parameters of modified CDH showed the highest peak values after 30 days of incubation with polysaccharides at 4 °C. In summary, natural polysaccharides seem to be an effective biotechnological tool for the modification of CDH activity to increase the possibilities of its practical applications in many fields of industry.

scholarly journals Purification and Partial Characterization of a Thermostable Laccase from Pycnoporus sanguineus CS-2 with Ability to Oxidize High Redox Potential Substrates and Recalcitrant Dyes

10.5772/56374 ◽  
2013 ◽  
Author(s):  
Sergio M. Salcedo Martnez ◽  
Guadalupe Gutirrez-Soto ◽  
Carlos F. Rodriguez Garza ◽  
Tania J. Villarreal Galvan ◽  
Juan F. Contreras Cordero ◽  
...  
Keyword(s):  
Redox Potential ◽  
Partial Characterization ◽  
Pycnoporus Sanguineus ◽  
High Redox Potential

scholarly journals Media selection for mycelia growth, antifungal activity against wood-degrading fungi, and GC-MS study by Pycnoporus sanguineus

BioResources ◽  
2011 ◽  
Vol 6 (3) ◽  
pp. 2719-2731 ◽  
Author(s):  
Yi P. Teoh ◽  
Mashitah M. Don ◽  
Salmiah Ujang
Keyword(s):  
Antifungal Activity ◽  
Water Extract ◽  
White Rot ◽  
White Rot Fungus ◽  
Gas Chromatography Mass Spectrometry ◽  
Malt Extract ◽  
Decay Fungi ◽  
Pycnoporus Sanguineus ◽  
Mycelia Growth ◽  
Property Changes

Wood-decaying fungi present a serious threat to items made from rubberwood (Hevea brasiliensis). Though conventional chemical control has been a successful method for preserving wood against stain and decay fungi growth, the effects of these chemicals are of concern because they create problems for the environment and public health. Pycnoporus sanguineus (P. sanguineus), is a white-rot fungus that invades wood during its growth, storage, or use, causing decay or other property changes. It was considered in this work as a potential source of bioactive compounds and investigated for its natural antifungal activity using a minimum inhibitory concentration assay against wood-degrading fungi. It was found that media consisting of 10.0 g/L malt extract, yeast extract, dextrose, and maltose, respectively at pH 4.7±0.2 provided the highest biomass production by P. sanguineus. Results showed that the antifungal properties of methanol and water extract of P. sanguineus mycelia and supernatant ranged from MIC values of 0.1 to 5.0 µg/µL. 4H-Pyran-4-one,2,3-dihydro-3,5-dihydroxy-6-methyl- (DDMP) was found to be the major component in the extract of this fungus, based on analysis using gas chromatography – mass spectrometry.

scholarly journals Durabilidade natural da madeira de pupunha (Bactris gasipaes Kunth). I. fungos

2002 ◽  
Vol 32 (4) ◽  
pp. 663-663 ◽  
Author(s):  
Maria Aparecida de JESUS ◽  
Raimunda Liege Souza de ABREU
Keyword(s):  
Bactris Gasipaes ◽  
Pycnoporus Sanguineus

A durabilidade da madeira de Bactris gasipaes Kunth (pupunha) face aos fungos foi avaliada em ambiente florestal e urbano e em condições de laboratório. Foram utilizadas, cinco árvores com espinhos e cinco sem espinhos da população Tabatinga, raças Putumayo, sendo retirados discos de 25-30cm da base, meio e do topo de cada pupunheira e colocados em uma área florestal próxima ao Banco Ativo de Germoplama de B. gasipaes (2°38'S, 60°03'W). Os discos foram inspecionados trimestralmente, para acompanhar o processo de biodeterioração da madeira causado por fungos durante dezoito meses. No ensaio em ambiente urbano, as amostras do estipe foram distribuídas, uma na posição côncava e outra na convexa, sobre uma estrutura de madeira localizada em uma área próxima da CPPF do Campus do INPA, Manaus e inspecionadas bimestralmente por um ano. Em ambiente florestal, o revestimento dos discos mostrou-se suscetível aos fungos Hymenogramme javanensis Mont. & Berk. e Hypoxylon rubiginosum (Pers.: Fr.) Fr.. Em ambiente urbano, a madeira apresentou alta susceptibilidade a Lenzites striata (Swart.: Fr.) Fr. e a Lenzites sp. e o revestimento a Porostereum amethysteum Hjortst. & Ryv. e a Stereum strigoso-zonatum (Sch.) G. H. Cunn.. Em condições de laboratório, a madeira da pupunheira demonstrou alta resistência aos fungos Lenzites trabea Pers.:Fr., Polyporus fumosus Pers.:Fr. e Pycnoporus sanguineus (L.:Fr.) Murr.

scholarly journals Cinnabarin synthesis by Pycnoporus sanguineus strains and antimicrobial activity against bacteria from food products

1998 ◽  
Vol 29 (4) ◽  
pp. 317-320 ◽  
Author(s):  
Elza de Fátima Albino Smânia ◽  
Artur Smânia Júnior ◽  
Clarice Loguercio-Leite
Keyword(s):  
Antimicrobial Activity ◽  
Klebsiella Pneumoniae ◽  
Bacillus Cereus ◽  
Food Products ◽  
Pycnoporus Sanguineus

Among three strains of Pycnoporus sanguineus, MIP 89007 produced more cinnabarin than MIP 95001 and MIP 95002. The antimicrobial activity of cinnabarin was tested against 11 species of bacteria isolated from food. Bacillus cereus and Leuconostoc plantarum were the most sensitive to cinnabarin, being inhibited by 0.0625 mg/ml. Klebsiella pneumoniae was the least sensitive (>4.0 mg/ml).

scholarly journals Leaf extracts of Casearia sylvestris and Casearia decandra affect growth and production of ligninolytic enzymes in wood decay basidiomycetes

Hoehnea ◽  
2016 ◽  
Vol 43 (4) ◽  
pp. 575-581 ◽  
Author(s):  
Thiara Siqueira Bento ◽  
Luce Maria Brandão Torres ◽  
Mauricio Batista Fialho ◽  
Vera Lúcia Ramos Bononi
Keyword(s):  
Wood Decay ◽  
Ligninolytic Enzymes ◽  
Wood Products ◽  
White Rot ◽  
Leaf Extracts ◽  
Decay Fungi ◽  
Pycnoporus Sanguineus ◽  
Wood Decay Fungi ◽  
Tropical Flora ◽  
Casearia Sylvestris

ABSTRACT White-rot basidiomycetes are able to deteriorate wood products and be pathogenic to living trees, requiring, thus requiring control. The tropical flora is an important source of eco-friendly antifungal compounds; however, the knowledge on how leaf extracts affect the fungal physiology is limited. Therefore, in the present work we investigated the influence of ethanolic leaf extracts of Casearia sylvestris and C. decandra at 0.1 mg mL-1 on the production of ligninolytic enzymes by Trametes villosa, Ganoderma australe and Pycnoporus sanguineus. Overall, the extracts inhibited the mycelial growth and the production of biomass. Additionally, C. sylvestris extract reduced the production of manganese peroxidase and laccase; however, the exposure to C. decandra extract resulted in variable responses. Therefore, enzymes related to lignin degradation are potential targets to control wood decay fungi by plant bioactive compounds, as their ability to colonize the substrate may be impaired.

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