Haya: The Saudi Journal of Life Sciences (SJLS)
Volume-3 | Issue-08 | 563-570
Original Research Article
Evaluation of Anti-Inflammatory and Antioxidant Activities of Ethanolic and Palm Wine Extract of the Stems of Phragmanthera capitata (Sprengel) S. Balle (Loranthaceae) Collected on Psidium guajava L. in Cameroon
Etame Loe Gisèle, Ngaba Guy Pascal, Kamdom Mariette, Nnanga Nga Emmanuel, Yinyang Jacques, Okalla Ebongue Cécile, Ngoule Charles Christian, Ngene Jean Pierre, Kidik Pouka Cathérine, Tankeu Séverin Elisée, Dibong Siegfried Didier
Published : Aug. 30, 2018
Abstract
The objective of this study was to evaluate the anti-inflammatory and
antioxidant activities of ethanolic and palm wine extract of Phragmanthera capitata
stems widely used by traditional healers. Acute toxicity according to the OCDE
Guideline 423 showed that the LD50 of ethanolic and palm wine extract was greater
than 5000 mg/Kg body weight. Anti-inflammatory capacity was evaluated by hind
paw oedema model using carrageenan-induced inflammation in rat. It has showed that
palm wine and ethanolic extracts possessed a dose-dependent anti-inflammatory
activity (at the first hour) with 21.47% and 41.24%, respectively, as a percentage
inhibition for the 200 and 300 mg/Kg body weight of palm wine extract and 16.95%
and 28.21% for the ethanolic extract of same dose as compared with 25.42% for
aspirin. The phenol dosage by the Folin-Ciocalteu method showed that ethanolic
extract (14420 mg EAA/g dry extract) had a high content relative to the palm wine
extract (2570 mg EAA/g of dry extract ). The antioxidant capacity was evaluated by
the diphenyl-picryl test (DPPH), where the ethanolic extract showed strong
antioxidant activity with a EC50 of 0.0085 mg/mL when that of the wine extract was
0.049 mg/mL, after the ascorbic acid (standard) with 0.033 mg/mL. Ethanolic and
palm wine extract of Phragmanthera capitata stems are non-toxic and have
inflammatory and antioxidant activity that could justify its traditional use.