33 documents found, page 1 of 4
Novelties in Funalia and the status of Fomitella (Polyporaceae, Basidiomycota)
Targino de Oliveira, Virton Rodrigo; Assis Alves, Paulo Roberto de; Lima-Júnior, Nelson Correia de; Santos, Carla Isabel Arcanjo; Lima, NelsonDuring studies on the taxonomical delimitation of some species of Funalia, some inconsistencies were observed in the genus. Based on morphological and phylogenetic analyses, the generic type Fomitella supina was positioned within the Funalia clade; thus, the synonymization of the genus and the new combination of Funalia supina are proposed. Funalia glabrorigens is also combined in the genus, while F. hainanensi...
Mycobiota of São Jorge cheeses with different ripening periods
Vale Dias, Teresa.; dos Santos, V.; Santos, Carla Isabel Arcanjo; Rodrigues, Paula; Venâncio, ArmandoThe growth of filamentous fungi in the cheese surface makes the product undesirable (and therefore disposable) and can even present a health risk due to the production of secondary metabolites, such as mycotoxins. The São Jorge cheese is a highly appreciated product from São Jorge Island, Azores, Portugal. It is made with raw cow milk and has long ripening periods, up to 36 months. This product obtained the Pro...
Evaluation of lipid extraction methods from Antarctic filamentous fungi
Gallardo, V.; Sepúlveda, M.; Barría, E.; Cayún, Y.; Dias, Nicolina Marques; Lima, Nelson; Cornejo, P.; Santos, Carla Isabel ArcanjoPurpose: The benefits of natural compounds have been studied for decades for the development of new technologies to answer the global change challenges. In order to develop these new technologies, lipids represent a great class of bioactive molecules. However, the research on lipids and their applications still present gaps about new sources as well as on the extraction methods. Filamentous fungi found in Antar...
Aflatoxins and ochratoxin A contamination during Merkén Pepper Powder productio...
Costa, Jéssica; Santos, Carla Isabel Arcanjo; Soares, Célia Maria Gonçalves; Lima, Nelson; Santos, CledirBerry fruits of Capsicum annuum L. cv. "Cacho de Cabra are used for the manufacture of a traditional pepper powder known as Merkén, which is a Chilean spicy widely consumed at national level in Chile and also exported to different countries. Merkén contamination with Aflatoxins (AFs) and Ochratoxin A (OTA) is a main concerning for local producers and national and worldwide consumers. In the present study, AFs a...
Capsicum spp. and the antifungal potential of capsaicinoids as safeguards for a...
Sepúlveda, M.; Cayún, Y.; Gallardo, V.; Costa, J.; Santos, Carla Isabel Arcanjo; Cornejo, P.; Lima, Nelson; Santos, CledirIn recent years, cases of pathogenic fungi in agricultural crops and in animals, including humans, are growing (Paziani et al., 2020; Costa et al., 2022). Many of these pathogenic fungi are resistant to the commonly used antifungals. This scenario has created a need for new effective antifungals, particularly those based on eco-friendly approaches, such as plant secondary metabolites (e.g. capsaicinoids from Ca...
Implementation of cutting-edge technologies for the benefit of culture collecti...
Santos, Carla Isabel Arcanjo; Soares, Célia Maria Gonçalves; Venâncio, Armando; Lima, NelsonSince 1890, microbial culture collections (CCs) have been providing services to the scientific community, acting as reservoirs and providers of microorganisms, including their living cells, genomes, and information, being key players for the development of new and more sustainable products, compounds, and practices. For this reason, the Organisation for Economic Cooperation and Development (OECD) recognized CCs...
The challenges of a small culture collection toward accreditation
Soares, Célia; Martins, Anabela Castro Carneiro; Santos, Carla Isabel Arcanjo; Silva, Manuel Gomes; Lima, NelsonCulture collections (CCs) provide authentic biological materials, having a public service role dedicated to support a variety of microbiological work, providing solid assurance of continuity through preservation and delivery of strains described or cited in publications. Moreover, CCs often maintain novel microorganisms awaiting future exploitation by biotechnology, guaranteeing an active role in R&D activities...
Pilot Study of the air mycobiota of a cheese factory
Dias, Teresa; Santos, Carla Isabel Arcanjo; Salgado, Susana; Rodrigues, Paula; Venâncio, ArmandoMould growth on cheese is very common and the main contamination source is believed to be the environment in the production facilities. The growth of filamentous fungi on the cheese surface makes the product undesirable and can even present a health risk due to the production of secondary metabolites, such as mycotoxins. In fact, conditions at which ripening occurs are favourable to fungi development, and indig...
Taxonomy and phylogenetic analysis reveal one new genus and three new species i...
Lima, Vitor Xavier de; Oliveira, Virton Rodrigo Targino de; Lima-Júnior, Nelson Correia de; Oliveira-Filho, José Ribamar C.During surveys in the Brazilian Amazon, Atlantic Forest and Caatinga, several species of poroid Hymenochaetaceae were collected. Of the collected specimens, ITS and LSU sequences were generated and phylogenetic analyses performed. From morphological and phylogenetic inferences, Sclerotus Xavier de Lima, gen. nov. is described based on collections of Phellinus extensus, while Inonotus parvisetus V.R.T. Oliveira,...
Extremophilic enzymes from enriched cultures with wheat straw
Sanz, Andrea; Santos, Carla Isabel Arcanjo; Fuciños, Clara; Torrado, Ana; Lima, Nelson; Rúa, Maria LuisaThe demand for functional ingredients (such as prebiotics) has risen as an effect of increasing health consciousness. Amongst them, xylooligosaccharides (XOS) shows prebiotic effect at lower doses, in contrast with fructooligosaccharides (FOS), isooligosaccharides (IOS) or galactooligosaccharides (GOS). We have developed a process for obtaining XOS from wheat straw applying an alkali pre-treatment to the raw ma...