Abstract

Pituranthos tortuosus has multi-local traditional applications, production of aroma, in culinary processes, killing insects and as a remedy for diabetes, infectious diseases, dyspepsia, inflammation, fever and hepatitis. The essential oil antioxidant quality and composition of the dried aerial part of P. tortuosus collected at two successive seasons (spring and summer) were investigated. Essential oils were obtained by hydrodistilla- tion, physically evaluated and analyzed by the GC-MS. The ability of the oil-batches to restore the glutathione level in the alloxan-induced diabetic rats was used to assess the antioxidant quality. A total of twenty-eight com- pounds representing 98.65 % of the 0.8 % oil-yields and nineteen compounds representing 98.39 % of the 0.3 % oil-yields were identified in the summer and spring oil-batches, respectively. The oxygenated (38.47 %) and non-oxygenated (36.31 %) monoterpenes were accumulated in the spring oil-batch. In contrast, sesquiterpenes were accumulated in the summer oil-batch which may reflects the effect of monoterpenes emission due to summer temperature and the different biosynthetic preferability of the plant during summer and spring seasons. 1,8-cineole (13.43 %), 9-epi-caryophyllene (11.62 %) and α-cadinol (21.51 %) were the major constituents of summer oil-batch, while α-thujene (21.22 %) and linalool (27.98 %) were major components of spring oil- batch. The glutathione level was restored significantly (P< 0.05) in the animal treated with summer (33.6 %) and spring (32.8 %) oil-batches compared to the alloxan diabetic animals (21.3 %). In conclusion, major chemical changes were recognized in the summer and spring volatile oil-batches evidenced by the variations in the percentages of the monoterpenes and sesquiterpenes in these oil-batches which affect the antioxidant quality of the oils.

摘要

美洲象龟有多种本地传统应用，在烹饪过程中产生香气，杀死昆虫以及作为糖尿病，传染病，消化不良，炎症，发烧和肝炎的治疗剂。to鱼干地上部分的精油抗氧化剂质量和组成调查了连续两个季节（春季和夏季）收集的水。通过加氢蒸馏获得精油，通过GC-MS进行物理评估和分析。油批次恢复四氧嘧啶诱导的糖尿病大鼠中谷胱甘肽水平的能力用于评估抗氧化剂的质量。在夏季和春季油料批次中，分别鉴定出总共28种化合物（占0.8％的石油得率的98.65％）和19种化合物（占0.3％的石油得率的98.39％）。含氧（38.47％）和未含氧（36.31％）的单萜类化合物积聚在弹簧油批料中。相反，倍半萜积累在夏季的油量中，这可能反映了由于夏季温度和夏季和春季不同的植物生物合成偏好性，单萜排放的影响。1,8-桉树脑（13.43％），9-表叶石脑烯（11.62％）和α-卡迪诺（21.51％）是夏季油批的主要成分，而α-thujene（21.22％）和芳樟醇（27.98％） ）是春季补油的主要成分。谷胱甘肽水平显着恢复（与四氧嘧啶糖尿病动物（21.3％）相比，夏季（33.6％）和春季（32.8％）油批处理的动物的P <0.05。总之，在夏季和春季的挥发性油分批中认识到主要的化学变化，这些油分批中单萜和倍半萜烯的百分比变化会影响油的抗氧化质量，从而证明了这种变化。