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Browsing by Author "Medina, Angel"

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Acclimatisation of Fusarium langsethiae, F. poae and F. sporotrichioides to elevated CO2: impact on fungal growth and mycotoxin production on oat-based media

Kahla, Amal; Verheecke-Vaessen, Carol; Delpino-Deelias, Mariluz; Gutierrez-Pozo, Maria; Medina, Angel; Magan, Naresh; Doohan, Fiona (Elsevier, 2023-03-28)

Oats are highly susceptible to infection by Fusarium species, especially F. langsethiae, F. poae and F. sporotrichioides which contaminate the grain with mycotoxins. Climate change is expected to affect fungal colonisation ...
Assessment of the effect of Satureja montana and Origanum virens essential oils on Aspergillus flavus growth and aflatoxin production at different water activities

García-Díaz, Marta; Gil-Serna, Jessica; Patiño, Belén; García-Cela, Esther; Magan, Naresh; Medina, Angel (MDPI, 2020-02-25)

Aflatoxin contamination of foodstuffs poses a serious risk to food security, and it is essential to search for new control methods to prevent these toxins entering the food chain. Several essential oils are able to reduce ...
Biocontrol activities of yeasts or lactic acid bacteria isolated from Robusta coffee against Aspergillus carbonarius growth and ochratoxin A production in vitro

López Rodrígue, Claudia; Strub, Caroline; Fontana, Angélique; Verheecke-Vaessen, Carol; Durand, Noël; Beugré, Corinne; Guehi, Tagro; Medina, Angel; Schorr-Galindo, Sabine (Elsevier, 2024-03-01)

Biocontrol Agents (BCAs) can be an eco-friendly alternative to fungicides to reduce the contamination with mycotoxigenic fungi on coffee. In the present study, different strains of bacteria and yeasts were isolated from ...
Biovalorisation of crude glycerol and xylose into xylitol by oleaginous yeast Yarrowia lipolytica

Prabhu, Vinayak Ashok; Thomas, Dominic J.; Ledesma-Amaro, Rodrigo; Leeke, Gary A.; Medina, Angel; Verheecke-Vaessen, Carol; Coulon, Frederic; Agrawal, Deepti; Kumar, Vinod (BMC (part of Springer Nature), 2020-06-03)

Background Xylitol is a commercially important chemical with multiple applications in the food and pharmaceutical industries. According to the US Department of Energy, xylitol is one of the top twelve platform chemicals ...
Carbon dioxide production as an indicator of Aspergillus flavus colonisation and aflatoxins/cyclopiazonic acid contamination in shelled peanuts stored under different interacting abiotic factors

Garcia-Cela, Esther; Gari Sanchez, F. J.; Sulyok, Michael; Verheecke-Vaessen, Carol; Medina, Angel; Kruska, Rudolf; Magan, Naresh (Elsevier, 2019-10-24)

Aspergillus flavus is the main xerophylic species colonising stored peanuts resulting in contamination with aflatoxins (AFs) and cyclopiazonic acid (CPA). This study evaluated the relationship between storage of shelled ...
Comparative growth inhibition of bread spoilage fungi by different preservative concentrations using a rapid turbidimetric assay system

Valle Garcia, Marcelo; Garcia-Cela, Esther; Magan, Naresh; Venturini Copetti, Marina; Medina, Angel (Frontiers, 2021-06-08)

Bread and intermediate moisture bakery products are mainly spoiled by yeasts and filamentous fungi. The inoculum load and preservation system used determines their shelf life. To extend the shelf life of such commodities, ...
Comparison of growth and aflatoxin B1 production profiles of Aspergillus flavus strains on conventional and isogenic GM-maize-based nutritional matrices

Gasperini, Alessandra M.; Medina, Angel; Magan, Naresh (Elsevier, 2021-10-30)

Maize grown in both North and South America are now predominantly genetically modified (GM) cultivars with some resistance to herbicide, pesticide, or both. There is little information on the relative colonisation and ...
Comparison of multiple mycotoxins in harvested maize samples in three years (2018-2020) in four continents

Raj, Jog; Farkaš, Hunor; Jakovčević, Zdenka; Medina, Angel; Magan, Naresh; Čepela, Robert; Vasiljević, Marko (Taylor and Francis, 2022-01-19)

This study has examined the pattern of mycotoxin contamination of maize destined for animal feed in different global regions over a period of 3 years (2018–2020) with up to 1000+ samples analysed in each year. Overall, ...
Dynamics of solute/matric stress interactions with climate change abiotic factors on growth, gene expression and ochratoxin aA production by Penicillium verrucosum on a wheat-based matrix

Abdelmohsen, Shaimaa; Verheecke-Vaessen, Carol; Garcia-Cela, Esther; Medina, Angel; Magan, Naresh (Elsevier, 2020-10-16)

Penicillium verrucosum is responsible for ochratoxin A (OTA) contamination of temperate cereals during harvesting and storage. Inoculum comes from soil and crop debris. This study examined the effect of temperature (25 vs ...
Effect of acclimatization in elevated CO2 on growth and aflatoxin B1 production by Aspergillus flavus strains on pistachio nuts

Baazeem, Alaa; Medina, Angel; Magan, Naresh (MDPI, 2021-12-27)

There is little knowledge of the effect of acclimatization of Aspergillus flavus strains to climate-related abiotic factors and the subsequent effects on growth and aflatoxin B1 (AFB1) production. In this study, two strains ...
Effect of post-harvest management practices on the mycobiome and ochratoxin A contamination of differently processed Robusta coffees from Ivory Coast

López Rodríguez, Claudia; Strub, Caroline; Chochois, Vincent; Verheecke-Vaessen, Carol; Durand, Noël; Jourdan, Christophe; Fontana, Angélique; Guehi, Tagro; Medina, Angel; Schorr-Galindo, Sabine (Elsevier, 2023-09-15)

Ochratoxin A (OTA) is a secondary metabolite produced primarily by the genus Aspergillus sp. sections Circumdati and Nigri. It can accumulate in coffee at post-harvest stage. In the present study five different dry processed ...
Efficacy of different C18 HPLC analytical columns in the analysis of Fumonisins B1 and B2 in different matrices

Sultan, Yousef; Magan, Naresh; Medina, Angel (Biointerface Research in Applied Chemistry, 2021-06-10)

Fumonisins B1 and B2 are carcinogenic and commonly contaminate corn and corn-based products. Analysis of such toxins using C18 HPLC column is officially accredited but still unknown if all column types can effectively ...
Efficacy of metabolites of a Streptomyces strain (AS1) to control growth and mycotoxin production by Penicillium verrucosum, Fusarium verticillioides and Aspergillus fumigatus in culture

Mohd Danial, A.; Medina, Angel; Sulyok, M.; Magan, Naresh (Springer, 2020-01-20)

The objectives of this study were to determine the efficacy of metabolites of a Streptomyces strain AS1 on (a) spore germination, (b) mycelial growth, (c) control of mycotoxins produced by Penicillium verrucosum (ochratoxin ...
Efficacy of sodium metabisulphite for control of Aspergillus flavus and aflatoxin B1 contamination in vitro and in chilli powder and whole red chillies

Al-Jaza, Diyaa; Medina, Angel; Magan, Naresh (Elsevier, 2021-12-29)

Chillies are an important spice in many regions of the world. During the production and processing phases, they are prone to infection by mycotoxigenic fungi, especially Aspergillus Section Flavi species and contamination ...
Fungal diversity and metabolomic profiles in GM and isogenic non-GM maize cultivars from Brazil

Gasperini, A. M.; Garcia-Cela, Esther; Sulyok, M.; Medina, Angel; Magan, Naresh (Springer, 2020-10-12)

There is little knowledge of the microbial diversity, mycotoxins and associated secondary metabolites in GM maize and isogenic non-GM cultivars (cvs). This study has quantified the microbial populations and dominant fungal ...
Impact of environmental conditions on the concentrations of trichothecenes, their glucosides, and emerging fusarium toxins in naturally contaminated, irradiated, and fusarium iangsethiae inoculated oats

Oluwakayode, Abimbola; Greer, Brett; Meneely, Julie; Berthiller, Franz; Krska, Rudolf; Medina, Angel (MDPI, 2024-03-22)

Trichothecenes produced by Fusarium species are commonly detected in oats. However, the ratios of the concentrations of free trichothecenes and their conjugates and how they are impacted by different interacting environmental ...
Impacts of climate change interacting abiotic factors on growth, aflD and aflR gene expression and aflatoxin B1 production by Aspergillus flavus strains in vitro and on pistachio nuts

Baazeem, Alaa; Rodriguez, Alicia; Medina, Angel; Magan, Naresh (MDPI, 2021-05-28)

Pistachio nuts are an important economic tree nut crop which is used directly or processed for many food-related activities. They can become colonized by mycotoxigenic spoilage fungi, especially Aspergillus flavus, mainly ...
Impacts of gaseous ozone (O3) on germination, mycelial growth, and aflatoxin B1 production in vitro and in situ contamination of stored pistachio nuts

Baazeem, Alaa; Medina, Angel; Magan, Naresh (MDPI, 2022-06-17)

Pistachio nuts can become colonized by mycotoxigenic fungi, especially Aspergillus flavus, resulting in contamination with aflatoxins (AFs). We examined the effect of gaseous O3 (50–200 ppm; 30 min; 6 L/min) on (a) in vitro ...
Improvements within the peanut production chain to minimize aflatoxins contamination: an Ethiopian case study

Cervini, Carla; Verheecke-Vaessen, Carol; He, Tingting; Mohammed, Abdi; Magan, Naresh; Medina, Angel (Elsevier, 2021-10-15)

Peanuts (Arachis hypogaea L.) are a worldwide crop appreciated by consumers and known to have several health benefits (e.g. decreasing risk of cardiovascular diseases, lowering LDL cholesterol). Nonetheless, during the ...
Influence of two garlic-derived compounds, propyl propane thiosulfonate (PTS) and propyl propane thiosulfinate (PTSO), on growth and mycotoxin production by Fusarium species in vitro and in stored cereals

Mylona, Kalliopi; Garcia-Cela, Esther; Sulyok, Michael; Medina, Angel; Magan, Naresh (MDPI, 2019-08-27)

Two garlic-derived compounds, Propyl Propane Thiosulfonate (PTS) and Propyl Propane Thiosulfinate (PTSO), were examined for their efficacy against mycotoxigenic Fusarium species (F. graminearum, F. langsethiae, F. ...

Browsing by Author "Medina, Angel"

Browsing by Author "Medina, Angel"

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