Essential oil composition and antioxidant activity of hydromethanolic extract from the flowers, leaves and stems of <i>Callistemon citrinus</i> (Curtis) Skeels

Abstract

Essential oils of flowers, leaves and stems of <i>Callistemon citrinus</i> (Curtis) Skeels (Family-Myrtaceae) were obtained by hydrodistillation and identified by GC and GC/MS. (46, 26, 46) components which accounted for over (94.5, 93.4, 94.1%) of flowers, leaves and stems oils were identified, respectively. The main components in the oils of plant parts were: 1, 8-cineol (16.1, 67.6, 41.3 %), α-pinene (25.7, 9.4, 19.1 %) and β-pinene (7.3, 1.3, 3.5 %), respectively. Essential oil of the leaves and hydromethanolic extract of flowers, leaves and stems of <i>C. citrinus</i> were emphasized as antioxidant and free radical scavenger. The samples were measured in terms of hydrogen donating or free radical scavenging ability. Results indicated the best anti-oxidant activity for flowers extract.