Es, Faculty of Science, University of Malaya, Kuala Lumpur, 50603, Malaysia?2013 Phang et al.; licensee BioMed Central Ltd. That is an Open Access article distributed beneath the terms of the Inventive Commons Attribution License (creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any NF-κB Inhibitor MedChemExpress medium, provided the original function is adequately cited.Phang et al. BMC Complementary and Alternative Medicine 2013, 13:243 biomedcentral/1472-6882/13/Page two ofBackground Alpinia species, in the Zingiberaceae household happen to be extensively studied for their chemical and biological properties . Based around the ethnobotanical research, many species of this genus have already been utilized in standard medicine, and inside the preparations and flavorings of meals in lots of Asian countries. Amongst the Alpinia species, the rhizomes of Alpinia galanga happen to be widely used as spice and inside the remedy of stomachic in China and Thailand; coughs, asthma, bronchitis, headache, inflammation, rheumatoid arthritis and colic in Malaysia [2,3]. One wild species, Alpinia mutica has been employed to treat stomach upset by natives and it has also been reported to show great antioxidant and cytotoxic anticancer properties . Some novel compounds isolated in the species of Alpinia had been identified to possess anti-cancer, antiinflammatory, anti-spasmodic, anti-ulcerogenic, neuroprotective, analgesic, hepatoprotective and cardioprotective properties . Resulting from its wide therapeutic values, it really is of wonderful interest to conduct additional studies around the unexplored species from this genus which may possibly possess medicinal properties, but has not been completely studied. Within this endeavour, Alpinia pahangensis was hence selected for investigation. Alpinia pahangensis, a wild ginger, occcuring much less typical in the genus, is often a perennial plant distributed within the lowlands of Pahang, Malaysia. The rhizomes of A. pahangensis have already been applied by tribal natives for relieving flatulence. Even so, there’s a limited study around the biological activity with the A. pahangensis. A current report by Awang et al.  showed that the vital oil extracted from the rhizomes and leaves of Alpinia pahangensis had great antimicrobial activity against Staphylococcus aureus strains and selected fungi. No cost radicals created in our physique as a result of aerobic respiration and substrate oxidation, may cause oxidative stress which may well contribute for the improvement of quite a few ailments such as cancer, Alzheimer’s disease, aging, diabetes, Parkinson disease and atherosclerosis [7-13]. Overproduction of free of charge radicals in our bodies might be growing resulting from pollution and also other external elements, and their removal by our antioxidant systems might be reduce than ahead of on account of a number of aspects related to our lifestyle amongst other individuals. Oxidative anxiety causes serious damage to important cellular macromolecules which include protein and DNA. However, the production of absolutely free radicals might be balanced by antioxidant MMP-12 Inhibitor Storage & Stability actions of endogenous enzymes at the same time as all-natural and synthetic antioxidants [14,15]. Antioxidants exert its action by way of many mechanisms like prevention of chain initiation, chelating of transition metal ion catalysts, decomposition of peroxidases, prevention of continued hydrogen abstraction and radical scavenging .These deleterious effects of free radicals have drawn the attentions of scientists to the value of antioxidants in prevention and therapy of ailments . Hence, there has been increasing interest.