Encontrados 15 documentos, a visualizar página 1 de 2

Ordenado por Data

Micoteca da Universidade do Minho (MUM) : a portuguese culture collection

Simões, Marta Filipa; Santos, Isabel M.; Santos, C.; Lima, Nelson


Microbial strain characterisation by MALDI-TOF MS - possibilities and limits

Kallow, W.; Erhard, M.; Lima, Nelson; Santos, Isabel M.; Serra, Rita; Venâncio, Armando; Friedl, T.; Müller, J.; Hoog, G. S. de; Verkley, G. J. M.


New and simple plate test for screening relative transfructosylation activity o...

Dominguez, Ana; Santos, Isabel M.; Teixeira, J. A.; Lima, Nelson

Several microorganisms are reported to have transfructosylation activity due to fructosyltransferase and/or fructofuranosidase activities. However, the search for other fungi with higher transfructosylation activity remains a challenge. So, a presumptive and indirect colorimetric plate assay for the evaluation of transfructosylation activity in fungi was developed which involved the simultaneous determination i...


FISH and calcofluor staining techniques to detect in situ filamentous fungal bi...

Gonçalves, Ana B.; Santos, Isabel M.; Paterson, R. R. M.; Lima, Nelson

Filamentous fungi are a ubiquitous and diverse group of eukaryotic organisms and may contribute, along with bacteria, yeasts, protozoa and viruses, to the formation of biofilms in water distribution systems. However, fungal involvement in biofilms has not been demonstrated unambiguously. Furthermore, these fungi may be responsible for the production of tastes, odours and mycotoxins in drinking water making thei...


Novel and simple test plating for screening relative transfructosylation activi...

Dominguez, Ana; Santos, Isabel M.; Teixeira, J. A.; Lima, Nelson

Fructooligosaccharides (FOS) have received particular attention recently because of their excellent biological and functional properties, namely, as prebiotic compounds that promote the growth of intestinal microflora. They are also low calorie non-carcinogenic sweeteners with numerous suggested health benefits. These include immune system activation, resistance to infections, synthesis of Bcomplex vitamins, ca...


Fish and calcofluor staining techniques to detect in situ filamentous fungal bi...

Gonçalves, A. B.; Santos, Isabel M.; Paterson, R. R. M.; Lima, Nelson

Filamentous fungi (ff) are a ubiquitous and diverse group of eukaryotic organisms. However, fungal involvement in biofilms has not been demonstrated unambiguously. They may be responsible for the production of tastes, odours and mycotoxins in water [1] and so rapid detection is important. Detection of ff by conventional methods is complex, indirect and time consuming: results can be obtained only after 3-5 days...


Micoteca da Universidade do Minho : 9 years operation

Santos, Isabel M.; Lima, Nelson

The Micoteca da Universidade do Minho culture collection (MUM) was established in 1996, at the Biological Engineering Department of Minho University, in Portugal, aiming to maintain and supply fungal strains for research in biotechnology and teaching, and to become a centre of knowledge, information and training in mycology. The original collection, containing 38 strains with specific degradatory capabilities, ...


The effect of culture preservation techniques on patulin and citrinin productio...

Santos, Isabel M.; Abrunhosa, Luís; Venâncio, Armando; Lima, Nelson

Aims: To study the influence of culture preservation methods and culture conditions on the production of the mycotoxins patulin and citrinin by Penicillium expansum. Methods and results: Ten strains of Penicillium expansum were preserved using subculture and maintenance at 4 ºC, mineral oil, drying on silica gel and freeze-drying. Patulin and citrinin production was assessed on yeast extract sucrose agar (YES) ...


Biodegradation of bioaccessible textile azo dyes by Phanerochaete chrysosporium

Martins, M. Adosinda M.; Ferreira, Isabel C. F. R.; Santos, Isabel M.; Queiroz, Maria João R. P.; Lima, Nelson

Azo dyes are important chemical pollutants of industrial origin. Textile azo dyes with bioaccessible groups for lignin degrading fungi, such as 2-methoxyphenol (guaiacol) and 2,6-dimethoxyphenol (syringol), were synthesised using different aminobenzoic and aminosulphonic acids as diazo components. The inocula of the best biodegradation assays were obtained from a pre-growth medium (PAM), containing one of the s...


Criteria followed in the establishment of a filamentous fungi culture collectio...

Santos, Isabel M.; Lima, Nelson

In Portugal there are few culture collections of filamentous fungi and these are mostly in-house, and located mainly in the Lisbon area. Furthermore, open access to Portuguese databases on microorganisms is not well established. This knowledge and the continuing experimental activity in mycology, combined with an interest from the University in creating and financing reliable services to support research, led t...


15 Resultados

Texto Pesquisado

Refinar resultados

Autor











Data








Tipo de Documento



Recurso



Assunto















    Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento União Europeia