Evaluation of in vitro enzymatic and non-enzymatic antioxidant properites of leaf extract from Alpinia Purpurata (Vieill.) K. Schum.
- Author:
Chinthamony Arul RAJ
1
;
Paramasivam RAGAVENDRAN
1
;
Dominic SOPHIA
1
;
Thangarajan STARLIN
2
;
Muthian Ahalliya RATHI
3
;
Velliyur Kanniappan GOPALAKRISHNAN
4
Author Information
- Publication Type:Journal Article
- Keywords: Alpinia purpurata; enzymatic antioxidants; free radicals; non-enzymatic antioxidants; oxidative stress
- MeSH: Alpinia; chemistry; Antioxidants; analysis; Catechol Oxidase; metabolism; Enzymes; metabolism; Lipid Peroxidation; Plant Extracts; chemistry; Plant Leaves; chemistry
- From: Chinese journal of integrative medicine 2016;22(9):691-695
- CountryChina
- Language:English
-
Abstract:
OBJECTIVETo evaluate the enzymatic and non-enzymatic antioxidants of leaf extract from Alpinia purpurata.
METHODSOne gram of fresh leaf of Alpinia purpurata was grinded in 2 mL of 50% ethanol and centrifuged at 10,000×g at 4°C for 10 min. The supernatant obtained was used within 4 h for various enzymatic antioxidants assays like superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione S-transferase (GST), ascorbate oxidase, peroxidase, polyphenol oxidase (PPO) and non-enzymatic antioxidants such as vitamin C, total reduced glutathione (TRG) and lipid peroxidation (LPO).
RESULTSThe leaf extract of Alpinia purpurata possess antioxidants like vitamin C 472.92±6.80 μg/mg protein, GST 372.11±5.70 μmol of 1-chloro 2,4 dinitrobenzene (CDNB)-reduced glutathione (GSH) conjugate formed/min/mg protein, GPx 281.69±6.43 μg of glutathione oxidized/min/mg protein, peroxidases 173.12±9.40 μmol/g tissue, TRG 75.27±3.55 μg/mg protein, SOD 58.03±2.11 U/mg protein, CAT 46.70±2.35 μmol of H2O2 consumed/min/mg protein in high amount whereas ascorbate oxidase 17.41±2.46 U/g tissue, LPO 2.71±0.14 nmol/L of malondialdehyde formed/min/mg protein and PPO 1.14±0.11 μmol/g tissue in moderate amount.
CONCLUSIONAlpinia purpurata has the potential to scavenge the free radicals and protect against oxidative stress causing diseases. In future, Alpinia purpurata may serve as a good pharmacotherapeutic agent.
