Oxygen radical antioxidant capacity (ORAC) and antibacterial properties of Melicope glabra bark extracts and isolated compounds by Quek, Alexandra, Mohd Zaini, Hafizah, Kassim, Nur Kartinee, Sulaiman, Fadzil, Rukayadi, Yaya, Ismail, Amin, Zainal Abidin, Zamirah, Awang, Khalijah