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| Registros recuperados: 31 | |
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| El-Gamal,Rehab; Nikolaivits,Efstratios; Zervakis,Georgios I; Abdel-Maksoud,Gomaa; Topakas,Evangelos; Christakopoulos,Paul. |
| Background: Many buildings in Egypt e.g. museums, mosques and churches, do not possess controlled environments for minimizing the risks of damage of wooden artifacts due to the growth of fungi. Fungal damage usually appears as change in wood color, appearance of stains, and sometimes deformation of wooden surfaces. In this study we focused on the effect that some fungi exert on the properties of wooden artifacts and evaluated the effectiveness of different concentrations of chitosan on their protection against damage by mold fungi. Results: Samples were collected from different monuments and environments, and fungi growing on them were isolated and identified. The isolated Penicillium chrysogenum, Aspergillus flavus and /Aspergillus niger strains were used... |
| Tipo: Journal article |
Palavras-chave: Archeological wood; Chitosan protection; Crystallinity index; Damage of wooden artifacts; Filamentous fungi; FTIR; Fungal damage; Prevention of fungal growth; UV spectrophotometry; Wood deterioration; XRD. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000600011 |
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| Baracho,Marta S.; Baracho,Ivanhoé R.. |
| Mutations related to gene methG1 of Aspergillus nidulans were analyzed, in order to study a mathematical model for the determination of the mutation rate per nucleus per generation, in filamentous fungi. A replica plating technique was used to inoculate, in a single operation, 26 colonies of the strain, into Petri dishes containing culture medium, and the nine central colonies were analyzed for size and number of conidia in each colony. Using this technique, several central colonies were analyzed with regard to the appearance of mutation, and the number and type of reversions were determined for each colony. The frequencies obtained for each reversion were analyzed, in order to verify if their distribution was in accordance with that of Greenwood and Yule.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aspergillus nidulans; Mutation rate; Spontaneous mutation; Fungi; Filamentous fungi. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000100014 |
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| Assis,Fábia Giovana do Val de; Ávila,Carla Luiza da Silva; Pinto,José Cardoso; Schwan,Rosane Freitas. |
| The objective of this study was to evaluate the effect of bacterial inoculants at two inoculation rates on chemical and biological characteristics of maize silage. The treatments consisted of two inoculating rates (5 and 6 log cfu g-1of forage) for each strain of lactic acid bacteria (LAB) identified as Lactobacillus buchneri, L. hilgardii, or L. plantarum. The maize was ensiled in experimental PVC silos. Samples were taken for the determination of the contents of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), water-soluble carbohydrates (WSC), organic acids and alcohols, for the evaluation of the populations of lactic acid bacteria, yeasts, filamentous fungi, and for the determination of pH values during ensilage and after 30 or 90... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Filamentous fungi; Inoculation; Lactic acid bacteria; Volatile fatty acids; Yeasts. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000800395 |
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| Souza,Leiliane Cristine de; Zambom,Maximiliane Alavarse; Pozza,Magali Soares dos Santos; Neres,Marcela Abbado; Radis,Ana Cláudia; Borsatti,Liliane; Castagnara,Deise Dalazen; Gundt,Simoni. |
| This research study was conducted to evaluate, by means of microbiological analyses, the preservation of wet brewery waste stored under aerobic and anaerobic conditions, regarding the development of filamentous fungi, yeasts and lactic-acid bacteria. The following treatments were used: untreated brewery waste, pre-dried brewery waste silage, brewery waste silage with effluent drainage and BW silage without effluent drainage. Silos made of PVC and equipped with Bunsen valves to allow gases to escape were used. Dry matter (DM), crude protein (CP), temperature (°C) and pH in the untreated BW, in the stored brewery waste and in the brewery waste silage upon silo opening, after 60 days of ensilage were analyzed. A completely randomized design was used. The data... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Filamentous fungi; Lactic acid bacteria; Silage; Yeasts. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000100027 |
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| Ramos, Darlê Martins Barros; Faculdades Unidas do Norte de Minas- FUNORTE- Montes Claros- MG; Silva, Cristina Ferreira; Departamento de Biologia- Universidade Federal de Lavras- CP 3037 , Lavras- MG; Batista, Luís Roberto; Departamento de Ciência dos Alimentos- Universidade Federal de Lavras- CP 3037 Lavras- MG; Schwan, Rosane Freitas; Departamento de Biologia- Universidade Federal de Lavras- CP 3037 , Lavras- MG. |
| O café é um produto nacional com grande expressão para a economia brasileira. O uso excessivo de fungicidas tem levado a pesquisas sobre formas alternativas como o controle biológico. Objetivou-se avaliar o potencial antagônico de leveduras em co-cultivo com fungos filamentosos. Isolados das espécies Debaryomyces hansenii (UFLACF 889 e UFLACF 847) e Pichia anomala (UFLACF 710 e UFLACF 951) foram inoculados (103 a 106 células mL-1) com três espécies de fungos filamentosos, Aspergillus ochraceus, A. parasiticus e Penicillium roqueforti (103 a 106 esporos mL-1). A avaliação do crescimento micelial e a contagem de esporos foram realizadas durante 21 dias. Observou-se que o isolado UFLACF 889 apresentou, em média, maior efeito inibitório na produção de... |
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Palavras-chave: 2.12.00.00-9 Leveduras; Fungos filamentosos; Biocontrole; Café; Debaryomyces; Pichia 2.12.00.00-9 Yeasts; Filamentous fungi; Biocontrol; Coffee; Debaryomyces; Pichia. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3361 |
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| Guimarães, Cíntia Gonçalves; Bonfá, Caroline Salezzi; Evangelista, Antônio Ricardo; Santos, Alexandre Soares dos; Pantoja, Lílian de Araújo; Castro, Gustavo Henrique de Frias. |
| The elephant grass presents problems during the fermentation of the ensiled material, being necessary use of additives. This study aimed to evaluate the population of yeast and filamentous fungi, enterobacterias, contents of acetic and butyric acids and ethanol production, in elephant grass silages added with different levels of macaúba cake at opening times. This was a 3 x 6 factorial completely randomized experimental design, with three inclusion levels of the macaúba cake (0, 10 and 20%) and six opening times (1, 5, 10, 20, 40 and 60 days after ensiling), with four replications. For all the studied variables, there was a difference in the interaction among levels and times, and an increasing linear behavior only for the contents of acetic acid, for the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enterobacterias; Filamentous fungi; Opening times; Organic acids; Yeast fungi.. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/42523 |
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| SOBRAL,LAUREANA V.; MELO,KELLY N.; SOUZA,CLECIANA M.; SILVA,SÍLVIO F.; SILVA,GILVANIA L.R.; SILVA,ANDRESSA L.F.; WANDERLEY,KATHARINE A.A.; OLIVEIRA,IDJANE S.; CRUZ,ROBERTA. |
| ABSTRACT To the fungal microbiota the UFPE and biotechnological potential enzymatic and antimicrobial production. Air conditioned environments were sampled using a passive sedimentation technique, the air I ratio and the presence of aflatoxigenic strains evaluated for ANVISA. Icelles were to determine the enzymatic activity of lipase, amylase and protease metabolic liquids to determine antimicrobial activity. Diversity was observed in all CAV environments, CFU/m3 ranged from 14 to 290 and I/E ratio from 0.1 to 1.5. The of the fungal genera were: Aspergillus (50%), Penicillium (21%), Talaromyces (14%), Curvularia and Paecilomyces (7% each). Aspergillus sydowii (Bainier & Sartory) Thom & Church presented enzymatic activity and the Talaromyces... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Air quality; Bacteria; Enzymes; Filamentous fungi; Refrigerated environments. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502327 |
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| Almeida,Paula Zaghetto de; Pereira,Marita Gimenez; Carvalho,Caio Cesar de; Heinen,Paulo Ricardo; Ziotti,Luciana Sobrani; Messias,Josana Maria; Jorge,João Atilio; Polizeli,Maria de Lourdes Teixeira de Moraes. |
| Abstract Filamentous fungi are widely diverse and ubiquitous organisms. Such biodiversity is barely known, making room for a great potential still to be discovered, especially in tropical environments - which are favorable to growth and species variety. Filamentous fungi are extensively applied to the production of industrial enzymes, such as the amylases. This class of enzymes acts in the hydrolysis of starch to glucose or maltooligosaccharides. In this work twenty-five filamentous fungi were isolated from samples of decomposing material collected in the Brazilian Atlantic Forest. The two best amylase producers were identified as Aspergillus brasiliensis and Rhizopus oryzae. Both are mesophilic, they grow well in organic nitrogen-rich media produce great... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amylase; Filamentous fungi; Aspergillus brasiliensis; Rhizopus oryzae; Glucoamylase; Bioprospection. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000300204 |
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| Damaso,Mônica Caramez Triches; Terzi,Selma da Costa; Farias,Antonio Xavier; Oliveira,Ana Carolina Pereira de; Fraga,Marcelo Elias; Couri,Sonia. |
| The aim of the present work was to select filamentous fungi isolated from diverse substrates to obtain the strains with potential to produce the hydrolytic enzymes. From a total of 215 strains, seven strains from the soils, six from the plants and one from sugarcane bagasse were selected and identified as belonging to the Trichoderma, Penicillium and Aspergillus genera. The best hydrolytic activities obtained by semi-solid fermentation using these strains were approximately: 35; 1; 160; 170 and 120 U/gdm (CMCase, FPase, β-glucosidase, xylanase and polygalacturonase, respectively), demonstrating their potential to synthesize the enzymes compared with the results reported in the literature. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cellulases; Semi-solid fermentation; Filamentous fungi; Hydrolytic enzymes. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000400005 |
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| Silva Júnior,Flavio Manoel Rodrigues da; Pereira,Sônia Valéria. |
| The purpose of this study was to assess the impact of metallurgical industry wastes on the semiarid soil microbiota using physico-chemical and microbiological parameters, highlighting the filamentous fungi assembly. Soil samples were collected in an area of industrial waste deposit contaminated with lead and mixed with natural soil (control soil) in seven different concentrations (0, 7.5, 15, 30, 45, 60 and 100%). The results showed alterations on the physico-chemical properties of the soil treated with industrial wastes, with a gradate increase of the soil's pH (5.6-10.4) and electrical conductivity (0.3-14.7 dS m-1) and also reduction of organic matter (7.0-1.8%). The use of microbiological parameters (fungal richness and diversity, CO2emission, and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chaetomium; Microbial activity; Contaminated soils; Filamentous fungi; Lead. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000500723 |
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| Registros recuperados: 31 | |
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