Search results for "Mycotoxin"
showing 6 items of 426 documents
Estudio de la reducción química y biológica de hongos y micotoxinas en pan
2017
El deterioro de los alimentos causado por los hongos que producen micotoxinas representa un problema importante en seguridad alimentaria. Los cereales en grano y sus productos derivados, como el pan, frecuentemente están contaminados con hongos micotoxigénicos. Es por ello que en la presente Tesis Doctoral se han estudiado la presencia de 17 micotoxinas en 80 muestras de pan de molde y el riesgo de exposición de la población a estos compuestos. Aflatoxinas (AFs), zearalenona (ZEA) y eniatinas (ENs) han sido detectadas respectivamente en el 20%, 65% y 96% de las muestras de pan analizadas. La presencia de dichas micotoxinas y, sobre todo, de las muestras en las que las AFs y la ZEA superan e…
Production and characterization of a monoclonal antibody to the trichothecene mycotoxin diacetoxyscirpenol.
1988
A monoclonal antibody was obtained by the fusion of mouse myeloma cells with splenocytes isolated from Balb/c mice, which had been immunized with diacetoxyscirpenol-hemiglutarate (DAS-hemiglutarate) and verrucarol-hemiglutarates covalently bound to ethylenediamine-modified bovine serum albumin. The anti-DAS-antibody that could be induced was of the IgM type with kappa-chains. The titer of the monoclonal anti-DAS-antibody in ascites fluid obtained from mice injected the selected cell line was much higher than those of conventional antisera. An enzyme-linked immunosorbent assay based on the competitive binding principle in which the antibody was applied had a sensitivity of 1 ng DAS per assay…
INHIBITION OF CELLULAR GROWTH AND STEROID 11β-HYDROXYLATION INRAS-TRANSFORMED ADRENOCORTICAL CELLS BY THE FUNGAL TOXINS BETICOLINS
1996
Abstract The proliferation of GM16 and 4CDTras-transformed newborn rat adrenocortical (RTAC) cells and Y1 mouse adrenal tumor cells was inhibited by beticolins, the fungal toxins extracted fromCercospora beticola, at submicromolar concentrations in a dose-dependent manner. Inhibitory concentrations for half the maximum inhibition were 150, 75 and 25 n M for beticolin-1 and 230, 150 and 50 n M for beticolin-2 in GM16, 4CDT and Y1 cells respectively. Beticolins strongly inhibited the production of 11β-hydroxysteroids on the second and third days of treatment in a dose-dependent manner between 0.1 and 1 μ M . Beticolins were shown by confocal microscopy to be localized in cytoplasmic organelle…
Geny warunkujące produkcję mykotoksyn u grzybów strzępkowych obecnych w magazynach zbożowych
2016
Challenges Associated with Byproducts Valorization—Comparison Study of Safety Parameters of Ultrasonicated and Fermented Plant-Based Byproducts
2020
In order to promote the efficient use of byproducts from the production of plant-based beverages, which still contain a large amount of nutritional and functional compounds, microbiological and chemical safety characteristics should be evaluated and, if needed, improved. Many challenges are associated with byproducts valorization, and the most important ones, which should be taken into account at the further steps of valorization, are biological and chemical safety. For safety improving, several technological treatments (biological, physical etc.) can be used. In this study, the influence of low-frequency ultrasonication (US) and fermentation with Lactobacillus casei LUHS210 strain, as phys…