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Impact of mycotoxins on humans and animals
Abstract Mycotoxins are secondary metabolites of molds that have adverse effects on humans, animals, and crops that result in illnesses and economic losses. The worldwide contamination of foods andExpand
New Activities for Isolated Compounds from Convolvulus austro‐aegyptiacus as Anti‐ulcerogenic, Anti‐Helicobacter pylori and Their Mimic Synthesis Using Bio‐guided Fractionation
The acute toxicity study showed that the extract is highly safe; the median lethal dose (LD50) was more than 4000 mg/kg and the obtained results were confirmed by the sub‐chronic toxicity because the rats that have been administered 1000  mg/kg of the extract for 15 consecutive days showed no alteration in the liver and kidney functions. Expand
Antimicrobial activities of Saudi Arabian desert plants
The ethanol extracts of Alhagi maurorum Medic, Chenopodium murale L., Convolvulus fatmensis G. Kunze, and Tamarix aphylla L.(Karst) showed significant antimicrobial activity against Gram negative, Gram positive bacteria, unicellular and filamentous fungi, but the extract of Cheno-podium mural showed the best MIC against theUnicellular fungi. Expand
Effect of certain chemical compounds on secondary metabolites of Penicillium janthinellum and P. duclauxii
The secondary metabolites of Penicillium janthinellum and P. duclauxii were affected by different concentrations of cadmium nitrate, sodium chloride, and sucrose. The fungal culture char- acteristicsExpand
Secondary metabolites of Aureobasidium pullulans isolated from Egyptian soil and their biological activity.
The cell free extract, isolated from the Wadi Houf soil showed significant an tibacterial ac tivity against G ram negative; Salmonella, Proteus v ulgaris, Escherichia coli, Pseudomonas aeurginosa, Klebsiella pneumonia and Gram positive. Expand
Novel Compounds with new Anti‐Ulcergenic Activity from Convolvulus pilosellifolius Using Bio‐Guided Fractionation.
The extract was highly safe as the LD50 was more than 5000 mg/kg, and well supported by the sub‐chronic toxicity study, as the extract administrated orally to rats for 35 consecutive days showed no alteration in the liver and kidney functions. Expand
Influence of growth medium on diagnostic characters of aspergillus and penicillium species
Three fungal strains; namely, Aspergillus terreus, Penicillium janthinellum and Penicillium duclauxii were cultured on different growth media including yeast extract, malt extract, yeast-maltExpand
Developments in using fatty acids in fungal chemotaxonomy
By adding certain chemical compounds including aspartic acid, glutamic acid, methionine, selenium and urea to the growth medium, the variation of the fatty acid profile was greatly increased and differentiated between all the investigated fungi. Expand
New Biological Activities of Casimiroa edulis Leaf Extract and Isolated Compounds
The phytochemical investigation of Casimiroa edulis Llave et Lex (Rotaceae) afforded four coumarins: umbelliferone, esculetin, imperatorin and xanthotoxol, which showed promising activity against a number of microorganisms with Minimum inhibitory concentrations comparable to the standard antibiotics. Expand
Antiulcerogenic Activities of the Extracts and Isolated Flavonoids of Euphorbia cuneata Vahl
The antioxidant activity of the alcohol extracts and the isolated compounds may explain the antiulcerogenic properties of Euphorbia cuneata Vahl. Expand