Antioxidant and antimicrobial activities of essential oil and extracts of Saurauia lantsangensis hu root.

Antioxidant and antimicrobial activities of the essential oil and n-hexane (HEE), chloroform (CHE), ethyl acetate (EAE), and methanol (MEE) extracts, respectively, from the root of Saurauia lantsangensis Hu were investigated. The GC-MS analysis revealed 39 compounds representing 96.41% of the oil containing T-muurolol (13.

28-day repeated dose oral toxicity of human copper-zinc superoxide dismutase from recombinant Pichia pastori in rats.

Human copper/zinc superoxide dismutase from recombinant Pichia pastori (RH-Cu/Zn-SOD) was orally administered, via gavage, to Sprague-Dawley rats at 500, 1,000, and 2,000 mg/kg body weight/day for 28 days. During the 28-day period, animals were examined for evidence of toxicity; there were no deaths, and in-life physical signs were normal. On day 29, the animals were exsanguinated, examined for gross pathology, and tissues were preserved for histopathology.

Chemical composition and larvicidal effects of essential oil of Blumea martiniana against Anopheles anthropophagus.

Objective: To determine chemical composition of the hydrodistilled essential oil of Blumea martiniana, and to evaluate its larvicidal activity against Anopheles anthropophagus, the natural vector of malaria.

Methods: Chemical composition of essential oils extracted by steam distillation was investigated by gas chromatography and mass spectroscopy (GC-MS). Larvicidal activity of essential oil and its four main compounds was carried out by WHO method.

Chemical composition and antimicrobial activities of essential oil of Blumea megacephala.

essential oil, obtained through steam distillation of samples collected from the Shiwang Mountains in Guangxi Province, China, was analyzed using GC-FID and GC-MS. Among the 65 compounds identified in the oil, the main compounds were borneol (13.6 %), β-caryophyllene (9.

[Studies on the antioxidative activity of polysaccharides from radix Saposhnikoviae].

Objective: To research the antioxidant activity of polysaccharides from Saposhnikovia divaricata (Turez.) Schischk.

Method: Polysaccharides from Saposhnikovia divaricata (Turez.