Publications by authors named "Hesham M Mahdy"

Article Synopsis
  • The study focused on creating efficient methods to detect diquat (DQ) in water and beverages.
  • Initially, direct injection for water samples was ineffective, but sensitivity improved significantly by diluting samples with acetonitrile and ammonium hydroxide.
  • Beverage samples required extra steps of extraction, heating, and partitioning to ensure high recovery rates and low variability, meeting validation standards for real sample contamination testing.
View Article and Find Full Text PDF

Water deficit is a significant environmental stress that has a negative impact on plant growth and yield. In this research, the positive significance of kaolin and SiO nanoparticles in moderating the detrimental effects of water deficit on maize plant growth and yield is investigated. The foliar application of kaolin (3 and 6%) and SiO NPs (1.

View Article and Find Full Text PDF

Aspergillus parasiticus RCMB 002001 (2) producing four types of aflatoxins B1, B2, G1, and G2 was used in this study as an aflatoxin-producer. Penicillium griseofulvum, P. urticae, Paecilomyces lilacinus, Trichoderma viride, Candida utilis, Saccharomyces cerevisiae as well as a non-toxigenic strain of Aspergillus flavus were found to be able to exhibit growth on aflatoxin B1-containing medium up to a concentration of 500 ppb.

View Article and Find Full Text PDF