Phytochemical Screening, Antibacterial Activity Against Periodontopathic Bacteria – Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans and HPLC of Opuntia ficus Fruit Extracts - Syed Wali Peeran; Wael Ibraheem; Hytham Fageeh; Hammam Ibrahim Fageeh; Syed Nahid Basheer; Nagabhushana Doggalli; Mohammad Nazish Alam (Natural Resources for Human Health, 2026)