Fractionation of phenolic compounds from Sonneratia apetala pneumatophores and their bioactivities

Abstract

Sonneratia apetala pneumatophore samples were collected from Xuan Thuy National Park, and then 80% methanol extract was fractionated through Sephadex LH-20 column chromatography. After elution with 95% ethanol and 50% acetone, two phenolic fractions were obtained from the crude extract of of S. apetala pneumatophores. The acetone fraction consisted of tannins having high antioxidant activity, 1.14 times higher than that of ascorbic acid. This fraction also had higher activity of α-amylase inhibition (IC 50 0.83 mg/mL) and R. sativus root growth inhibition (IC 50 6.4 mg/mL) than did the ethanol fraction. In contrast, ethanol fraction consisted of low-molecular phenolic compounds having inhibitory effects on Samonella tiphimurium growth. Such antibacterial activity was not observed in the acetone extract.

Therapeutic Potential and Ethnopharmacology of Dominant Mangroves of Bhitarkanika National Park, Odisha, India

“…[30,82,83] The pneumatophores are rich sources of phenolic compounds exhibiting antioxidative actions. Among the mangroves of Bhitarkanika National park, noteworthy activities were found for the pneumatophore extracts of S. apetala, [84] A. marina, [85] and C. decandra. [86] The nano particles synthesized from these plants also showed significant activities.…”