Chemical Composition of Garcinia xanthochymus Seeds, Seed Oil, and Evaluation of its Antimicrobial and Antioxidant Activity

Abstract

Seeds of Garcinia xanthochymus contain (in g.100⁻¹) 2.35 ash, 6.93 protein, 45.22 carbohydrate, 12.3 crude fiber, and saturated and unsaturated fatty acids at 34.17% and 65.79%, respectively. Seed oil was composed of nine major fatty acids including myristic acid (0.11%), palmitic acid (32.96%), stearic acid (0.96%), palmitoleic acid (17.65%), oleic acid (45.87%), linoleic acid (1.93%), linolenic acid (0.34%), arachidic acid (0.07%), and behenic acid (0.07%). The oil demonstrated antimicrobial activity against gram-positive bacteria. Antioxidant activities of oil were evaluated using α,α-diphenyl-β-picrylhdrazyl reduction activities, and it was higher than that of ascorbic acid and butylated hydroxyanisole (IC₅₀ = 120 μg.mL⁻¹).

Keywords:

• Unsaturated fatty acid
• saturated fatty acid