ABSTRACT In the present study, productivity, essential oil variability and antioxidant activity of Ferula assa-foetida oleo-gum-resin (OGR) collected at different collection times (July, August, September, and October) were studied by using GC-FID-MS and DPPH assay. The amount of OGR (g/plant) and its oil content significantly affected by the collection time. The highest and the lowest amount of OGR was obtained in September (13.2 g) and July (6.3 g), respectively. The essential oil content (w/w %) was in the order of: July (9.1%)> August (8.2%)> September (7.8%)> October (7.4%). The total number of constituents was 47 in July, 47 in August, 43 in September and 44 in October, representing 97.7%, 98.6%, 96.8%, and 96.8% of the total oil, respectively. α-Pinene (18.2–48.6%), (Z)-propenyl sec-butyl disulfide (9.4–28.8%), β-pinene (6.2–11.5%), bicyclogermacrene (3.3–6.4%), (E)-propenyl sec-butyl disulfide (1.3–5.8%), germacrene D (2.0–3.9%) and (Z)-β-ocimene (1.1–3.6%) were the main components of the OGR oils. The highest radical scavenging (IC50 87.3 ± 5.1 μg/ml) of the collected OGRs was obtained in August.

中文翻译：

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Ferula assa-foetida L. oleo-gum-resin 在植物开发期间的生产力、精油变异性和抗氧化活性

摘要在本研究中，通过使用 GC-FID-研究了在不同收集时间（7 月、8 月、9 月和 10 月）收集的 Ferula assa-foetida oleo-gum-resin (OGR) 的生产力、精油变异性和抗氧化活性。 MS 和 DPPH 测定。OGR的量（g/株）及其含油量受收集时间的显着影响。分别在 9 月 (13.2 g) 和 7 月 (6.3 g) 获得了最高和最低的 OGR 量。精油含量（w/w %）的顺序是：七月（9.1%）>八月（8.2%）>九月（7.8%）>十月（7.4%）。7月份成分股总数为47家，8月份为47家，9月份为43家，10月份为44家，分别占石油总量的97.7%、98.6%、96.8%和96.8%。α-蒎烯 (18.2–48.6%), (Z)-丙烯基仲丁基二硫化物 (9.4–28.8%), β-蒎烯 (6.2–11.5%), 双环锗烯 (3.3–6.4%)、(E)-丙烯基仲丁基二硫化物 (1.3–5.8%)、锗烯 D (2.0–3.9%) 和 (Z)-β-罗勒烯 (1.1–3.6%) 是主要成分OGR 油。收集到的 OGR 的最高自由基清除率 (IC50 87.3 ± 5.1 μg/ml) 是在 8 月获得的。