Toxigenic Fungi
Mostrando 1-12 de 40 artigos, teses e dissertações.
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1. Effect of Bacillus spp. on Aspergillus westerdijkiae growth, sporulation and ochratoxin A production in green-coffee medium
Abstract Aspergillus westerdijkiae is one of the most important spoilage and toxigenic fungi contaminating coffee beans and may produce ochratoxin A (OTA), a mycotoxin that characterize a health risk to the coffee consumers. Biological control strategies can be used for prevention of fungal invasion and decrease mycotoxin exposure. The aims of this study wer
Food Sci. Technol. Publicado em: 2017-12
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2. Antimicrobial and enzymatic activity of anemophilous fungi of a public university in Brazil
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 me
An. Acad. Bras. Ciênc.. Publicado em: 26/10/2017
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3. Isolation and identification of toxigenic and non-toxigenic fungi in samples of medicinal plants from the market
RESUMO:O consumo das plantas medicinais vem aumentando nas últimas décadas nas sociedades ocidentais, porém, a presença de fungos toxigênicos nestas plantas pode representar um risco em potencial de contaminação devido à produção de aflatoxinas e ocratoxinas. Neste trabalho, 12 amostras de plantas medicinais foram analisadas em relação ao nível
Rev. bras. plantas med.. Publicado em: 2015-06
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4. Effect of fungicide on Fusarium verticillioidesmycelial morphology and fumonisin B1 production
The effect of fludioxonil + metalaxyl-M on the mycelial morphology, sporulation and fumonisin B1 production by Fusarium verticillioides 103 F was evaluated. Scanning electron microscopy analysis showed that the fungicide caused inhibition of hyphal growth and defects on hyphae morphology such as cell wall disruption, withered hyphae, and excessive septation.
Braz. J. Microbiol.. Publicado em: 31/03/2015
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5. Methods to preserve potentially toxigenic fungi
Microorganisms are a source of many high-value compounds which are useful to every living being, such as humans, plants and animals. Since the process of isolating and improving a microorganism can be lengthy and expensive, preserving the obtained characteristic is of paramount importance, so the process does not need to be repeated. Fungi are eukaryotic, ac
Braz. J. Microbiol.. Publicado em: 2014
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6. Ochratoxigenic fungi associated with green coffee beans (Coffea arabica L.) in conventional and organic cultivation in Brazil
The genera Aspergillus comprises species that produce mycotoxins such as aflatoxins, ochratoxins and patulin. These are cosmopolitan species, natural contaminants of agricultural products. In coffee grains, the most important Aspergillus species in terms of the risk of presenting mycotoxins belong to the genera Aspergillus Section Circumdati and Section Nigr
Braz. J. Microbiol.. Publicado em: 2013
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7. Occurrence of aflatoxin B1 in natural products
The media claims for the consumption of natural resource-based food have gradually increased in both developing and developed countries. The interest in the safety of these products is partially due to the possible presence of toxigenic fungi acting as mycotoxin producers, such as aflatoxins produced during the secondary metabolism of Aspergillus flavus, A.
Braz. J. Microbiol.. Publicado em: 2012-12
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8. Clinical importance and representation of toxigenic and non-toxigenic Clostridium difficile cultivated from stool samples of hospitalized patients
The aim of this study was to fortify the clinical importance and representation of toxigenic and non-toxigenic Clostridium difficile isolated from stool samples of hospitalized patients. This survey included 80 hospitalized patients with diarrhea and positive findings of Clostridium difficile in stool samples, and 100 hospitalized patients with formed stool
Brazilian Journal of Microbiology. Publicado em: 2012-03
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9. Métodos de preservação de fungos potencialmente toxicogênicos / Methods to preserve potentially toxicogenic fungi
Microorganisms are a source of many high-value compounds which are useful to every living being, such as humans, plants and animals. Since the process of isolating and improving a microorganism can be lengthy and expensive, preserving the obtained characteristic is of paramount importance, so the process does not need to be repeated. Fungi are eukaryotic, ac
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/08/2011
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10. Interação entre fungos toxigênicos (Aspergillus flavus e Fusarium verticillioides) e carunchos (Sitophilus zeamais) em amostras de grãos de milho. / Interaction between toxigenic fungus (Aspergillus flavus e Fusarium verticilliodes) and weevils (Sitophilus zeamais) in samples of maize grains.
The weevils Sitophilus zeamais ability was examined to propagate spores of Aspergillus flavus and Fusarium verticillioides and the production of mycotoxins. Corn grains was conserved in flasks connected by a rubber to form a closed system (side A and B) and divided in six groups: G1 (corn + weevil - side A); G2 (corn + A. flavus - side A); G3 (corn + A. flav
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/08/2011
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11. Avaliação do mel como substrato para contaminação fúngica no ambiente da colméia. / Evaluation of honey as a substrate for fungal contamination in the environment of the hive.
Honey is a food produced by bees from the nectar of flowers collected and processed by the digestive enzymes of insects, stored in combs in their hives to serve them food. The Brazilian apiculture (branch of agriculture that studies of honey bees) has suffered high losses of honey bees, due to a number of diseases that affect the hives, putting them at risk.
Publicado em: 2010
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12. Efeitos da radiação gama sobre microbiota fúngica e micotoxinas encontradas em ração de frangos de corte. / Effects of gamma radiation on fungal microbiota and mycotoxins in broiler chicken feed.
The purpose of this experiment was to determine the impact of gamma radiation on the control of toxigenic fungi and mycotoxins (aflatoxin and fumonisin) found in broiler chicken feed. Results show that irradiation of feed with 5 kGy was effective on the control of deleterious effects caused by mycotoxins on performance parameters, hematological and biochemic
Publicado em: 2010