The Dual Antimelanogenic and Antioxidant Activities of the Essential Oil Extracted from the Leaves ofAcorus macrospadiceus(Yamamoto) F. N. Wei et Y. K. Li
Evidence-Based Complementary and Alternative Medicine(2012)
摘要
The antimelanogenic and antioxidant activities of the essential oil extracted from the leaves ofAcorus macrospadiceus(Yamamoto) F. N. Wei et Y. K. Li have never been explored. The essential oil effectively inhibited mushroom tyrosinase activity (EC50= 1.57 mg/mL) and B16F10 tyrosinase activity (IC50= 1.01 mg/mL), decreased the melanin content (EC50= 1.04 mg/mL), and depleted the cellular level of the reactive oxygen species (ROS) (EC50= 1.87 mg/mL). The essential oil effectively scavenged 2,2-diphenyl-1-picryl-hydrazyl (DPPH) (EC50= 0.121 mg/mL) and 2,2′-azino-bis (3-ethylbenzthiazoline-6-sulphonic acid) ABTS+radicals (EC50= 0.122 mg/mL). It also exhibited an apparent reducing power (EC50= 0.021 mg/mL) and metal-ion chelating activity (EC50= 0.029 mg/mL). The chemical constituents of the essential oil are ethers (55.73%), ketones (19.57%), monoterpenes (7.82%), alcohols (3.85%), esters (3.77%), sesquiterpenes (3.72%), and aromatic compounds (2.85%). The results confirm thatA. macrospadiceusessential oil is a natural antioxidant and inhibitor of melanogenesis.
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