The Center for Traditional Microorganism Resources, Keimyung University, Daegu 704-701, Korea.
Nat Prod Res. 2010;24(2):140-51. doi: 10.1080/14786410802496598.
The antioxidant activities and the determined major components of six popular and commercially available herb essential oils, including lavender (Lavendular angustifolia), peppermint (Mentha piperita), rosemary (Rosmarius officinalis), lemon (Citrus limon), grapefruit (Citrus paradise), and frankincense (Boswellia carteri), were compared. The essential oils were analysed by GC-MS and their antioxidant activities were determined by testing free radical-scavenging capacity and lipid peroxidation in the linoleic acid system. The major components of the essential oils of lavender, peppermint, rosemary, lemon, grapefruit, and frankincense were linalyl acetate (28.2%), menthol (33.4%), 1,8-cineole (46.1%), limonene (64.5 and 94.2%), and p-menth-2-en-ol (34.5%), respectively. The highest DPPH radical-scavenging activity was obtained by the lavender essential oil and limonene, with RC50 values of 2.1 +/- 0.23% and 2.1 +/- 0.04%, respectively. Radical-scavenging activity against the ABTS radical was highest in peppermint essential oil (1.6 +/- 0.09). Lavender oil was most effective for inhibiting linoleic acid peroxidation after 10 days.
比较了六种流行的市售草药精油（包括薰衣草（Lavandula angustifolia）、薄荷（Mentha piperita）、迷迭香（Rosmarinus officinalis）、柠檬（Citrus limon）、葡萄柚（Citrus paradise）和乳香（Boswellia carteri））的抗氧化活性和确定的主要成分。通过 GC-MS 分析精油，并通过测试在亚油酸系统中的自由基清除能力和脂质过氧化来确定其抗氧化活性。薰衣草、薄荷、迷迭香、柠檬、葡萄柚和乳香精油的主要成分分别为乙酸芳樟酯（28.2%）、薄荷醇（33.4%）、1,8-桉叶油醇（46.1%）、柠檬烯（64.5%和 94.2%）和 p-薄荷-2-烯-1-醇（34.5%）。薰衣草精油和柠檬烯的 DPPH 自由基清除活性最高，RC50 值分别为 2.1 +/- 0.23%和 2.1 +/- 0.04%。薄荷精油对 ABTS 自由基的清除活性最高（1.6 +/- 0.09）。薰衣草油在抑制亚油酸过氧化方面在 10 天后最为有效。
