Howaida I. Abd-Alla1,*, Hebatollah M. Sweelam1, Walaa A. El-Kashak1, Mounir M. El-Safty2
1Chemistry of Natural Compounds Department, National Research Centre, El- Tahrir Street, Dokki, Giza 12622, EGYPT.
2Quality Control of SPF Eggs Department, Central Laboratory for Evaluation of Veterinary Biologics, Abbassia 13181, Cairo, EGYPT.