Browsing Qatar University Annual Research Forum & Exhibition by Author "Jaoua, Samir"
Now showing items 1-8 of 8
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Assessment of Anti-proliferative and Anti-bacterial Activity of a Desert Microalgal Strain Desmodesmus sp.
Hosseini, Hoda Ali; Jaoua, Samir; Saadaoui, Imen ( Qatar University Press , 2020 , Poster)Microalgae are believed to be a promising sources of different high value products (HVP). HVP are metabolites which are produced during the growth of microalgae and their production is triggered by the physiochemical growth ... -
Biocontrol Activities of Bacillus megaterium Volatile Organic Compounds (VOCs) Against Mycotoxigenic Aspergillus, Penicillium and Fusarium fungi
Saleh, Aya; Jaoua, Samir ( Qatar University Press , 2020 , Poster)Mycotoxins are secondary metabolites that are produced by toxigenic fungi once the temperature and humidity are appropriate. Mycotoxins are known to have adverse health effects. There are chemical, physical, thermal and ... -
Biological Control of Mycotoxigenic Fungi and Ochratoxin A by The In-Vitro Application of a Qatari Burkholderia cepacia Strain (QBC03)
Zedan, Randa Hisham; Ul-Hassan, Zahoor; Al-Thani, Roda; Migheli, Quirico; Jaoua, Samir ( Qatar University Press , 2020 , Poster)Mycotoxins are secondary metabolites synthesized by mycotoxigenic fungi belonging mainly to three major fungal genera that are Aspergillus, Fusarium and Penicillium. The latter mycotoxigenic fungi contaminate plants and ... -
Characterization of the Extracellular Polymeric Substances (EPS) of Virgibacillus strains capable of mediating the formation of high Mg-calcite and protodolomite
Aldisi, Zulfa; Zouari, Nabil; Jaoua, Samir; Dittrich, Maria; Al-Kuwari, Hamad; Bontognali, Tomaso... more authors ... less authors ( Qatar University Press , 2020 , Poster)The origin of dolomite -a common carbonate mineral- is the subject of an ongoing debate. It has been proposed that extracellular polymeric substances (EPS) excreted by microbes contain specific organic molecules that ... -
Investigation and Biological Control of Toxigenic Fungi and Mycotoxins in Dairy Cattle Feeds
alasmar, Reem, moath; Jaoua, Samir ( Qatar University Press , 2020 , Poster)Mycotoxins, the secondary fungal metabolites are important contaminants of food and feed. Among the other contaminants, aflatoxin B1 (AFB1) and OTA are frequently detected in the animal feed product. In the present study, ... -
Investigation of Bacillus Thuringiensis Plasmid Instability and its Effect on the Synthesis of Crystals
Alwa, Amira; Jaoua, Samir ( Qatar University Press , 2020 , Poster)In order to explore plasmid instability in Bt, four Bt strains belonging to two Bt subspecies were cultured at 42°C for 9 days. HD1 and QBT376 belong to subspecies kurstaki, while H14 and QBT218 belong to subspecies ... -
Monitoring the presence and investigation of toxigenic fungi and mycotoxins in poultry feed and its products
Aboumaalie, Dana Abdalla; Jaoua, Samir ( Qatar University Press , 2020 , Poster)Contaminating poultry feed and their products with mycotoxins produced by fungi may cause many health effects on animals and human if they were at high concentrations. Therefore, it is imperative to regularly monitor the ... -
Prevalence of Toxigenic Fungi and Mycotoxins in Arabic Coffee: Protective Effect of Traditional Coffee Roasting, Brewing and Microbial Volatiles
Al-Attiya, Wadha Ahmed Khalifa; UI Hassan, Zahoor; Al-Thani, Roda; Jaoua, Samir ( Qatar University Press , 2021 , Poster)Like other agricultural crops, fungal infection and synthesis of mycotoxins in coffee leads to significant economic losses. This study is aimed at investigating the prevalence of toxigenic fungi, their metabolites, and the ...