Ergosterol
Mostrando 1-12 de 345 artigos, teses e dissertações.
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1. Composições químicas, capacidades radicais eliminadoras e atividades antimicrobianas em sementes de Satureja hortensis L. e Mentha spicata L. subsp. spicata da Turquia
Resumo O presente estudo determinou alguns compostos biológicos, atividade de eliminação de radicais e capacidade antimicrobiana em sementes de Satureja hortensis L. e Mentha spicata L. subsp. spicata. O ácido alfa-linolênico (C18: 3 n3) foi o principal ácido graxo poliinsaturado de Satureja hortensis L. (66,24 ± 1,24%) e Mentha spicata L. subsp. spic
Braz. J. Biol.. Publicado em: 2021-02
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2. Dry fruit as source of fungal contaminants or functional compounds?
Abstract This study evaluated the role of dry fruits as a source of fungal contaminants or functional compounds. Dry apple, apricot, candied fruits, prune, and white and black raisin were evaluated regarding patulin and ergosterol content, centesimal composition, pH, acidity, pectin, and phenolic profile. The ergosterol was detected in 38% of the samples and
Food Sci. Technol. Publicado em: 2020-03
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3. Immunomodulation Properties of Solid-State Fermented Laetiporussulphureus Ethanol Extracts in Chicken Peripheral Blood Monocytes In Vitro
ABSTRACT Laetiporus sp. is recognized as a fungal species traditionally used for medicinal purposes. This study investigated the in-vitro effects of solid-state fermented Laetiporussulphureus ethanol extracts (LSE) for their immunomodulatory potential. Bioactive levels detected in the LSE on different days throughout the fermentation period revealed that the
Braz. J. Poult. Sci.. Publicado em: 20/12/2019
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4. Dry fruit as source of fungal contaminants or functional compounds?
Abstract This study evaluated the role of dry fruits as a source of fungal contaminants or functional compounds. Dry apple, apricot, candied fruits, prune, and white and black raisin were evaluated regarding patulin and ergosterol content, centesimal composition, pH, acidity, pectin, and phenolic profile. The ergosterol was detected in 38% of the samples and
Food Sci. Technol. Publicado em: 04/11/2019
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5. Physicochemical and antioxidant properties of methanol extract from Maca (Lepidium meyenii Walp.) leaves and roots
Abstract In this study, we examined the phytochemical properties and antioxidant activities of the methanol extracts of maca (Lepidium meyenii Walp.) leaves and roots. A total of 25 chemical compounds were identified by LC-Q-TOF and classified as saponins, phenols, flavonoids, steroids, alkybenzenes, and amines. Among all the chemical compounds identified, t
Food Sci. Technol. Publicado em: 02/05/2019
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6. ERG11 gene polymorphisms and susceptibility to fluconazole in Candida isolates from diabetic and kidney transplant patients
Abstract INTRODUCTION: Candidiasis is the most frequent opportunistic mycosis in humans and can cause mortality, particularly in immunodeficient patients. One major concern is the increasing number of infections caused by drug-resistant Candidas trains, as these cannot be efficiently treated with standard therapeutics. The most common mechanism of fluconazo
Rev. Soc. Bras. Med. Trop.. Publicado em: 07/03/2019
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7. Ergosterol isolated from the basidiomycete Pleurotus salmoneostramineus affects Trypanosoma cruzi plasma membrane and mitochondria
Abstract Background Major drawbacks of the available treatment against Chagas disease (American trypanosomiasis) include its toxicity and therapeutic inefficiency in the chronic phase of the infection, which makes it a concern among neglected diseases. Therefore, the discovery of alternative drugs for treating chronic Chagas disease requires immediate acti
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 06/07/2017
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8. Terpinen-4-ol, tyrosol, and β-lapachone as potential antifungals against dimorphic fungi
Abstract This study aimed to evaluate the in vitro antifungal activity of terpinen-4-ol, tyrosol, and β-lapachone against strains of Coccidioides posadasii in filamentous phase (n = 22) and Histoplasma capsulatum in both filamentous (n = 40) and yeast phases (n = 13), using the broth dilution methods as described by the Clinical and Laboratory Standards Ins
Braz. J. Microbiol.. Publicado em: 2016-12
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9. Synthesis, in vitro Antifungal Activity and Molecular Modeling Studies of New Mannich Bases Derived from Lawsone
Hydroxynaphthoquinones such as lawsone (2-hydroxy-1,4-naphthoquinone) have proven to be effective antifungal agents. These compounds were tested for antifungal activity against yeast standard and clinical strains by the broth microdilution method. Among the synthetic lawsone derivatives, 2-hydroxy-3-((2-hydroxyphenyl)(pyrrolidin-1-yl)methyl)naphthalene-1,4-d
J. Braz. Chem. Soc.. Publicado em: 2016-11
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10. Rapid Detection of ACTG- and AK-Toxins in Alternaria alternata by LC-ESI-MS/MS Analysis and Antifungal Properties of Citrus Compounds
A methanol-soluble fraction of the dichloromethane extract from the culture broth of A. alternata AT4303 strain afforded the following five known mycotoxins: alternariol, alternariol monomethyl ether, altenusin, altenuene and altertoxin I. A hexane-soluble fraction of the dichloromethane extract yielded the steroids ergosterol and ergosterol peroxide, and al
J. Braz. Chem. Soc.. Publicado em: 2016-08
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11. Citronellal-induced disruption of membrane homeostasis in Candida albicans and attenuation of its virulence attributes
Abstract: INTRODUCTION There is an increasing burden of multidrug resistance. As a result, deciphering the mechanisms of action of natural compounds with antifungal activity has gained considerable prominence. We aimed to elucidate the probable mechanism of action of citronellal, a monoterpenoid found in the essential oil extracted from Cymbopogon plants,
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-08
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12. Annularins I and J: New Metabolites Isolated from Endophytic Fungus Exserohilum rostratum
The paper describes the isolation of ergosterol peroxide, monocerin, annularin I and annularin J compounds of Exserohilum rostratum biomass extracts. Compounds were isolated by silica gel column chromatography in polarity gradient and the structures were determined by nuclear magnetic resonance (NMR) and mass spectrometry (MS) methods. Monocerin, annularin I
J. Braz. Chem. Soc.. Publicado em: 2016-08