One hundred methanol plant extracts were screened for antibiotic activity against Mycobacterium tuberculosis and Mycobacterium avium. Nineteen extracts exhibited some activity against M. tuberculosis and 16 extracts showed some activity against M. avium. Thirteen of these 19 active extracts were traditionally used by First Nations peoples to treat tuberculosis. Extracts made from Heracleum maxi...

the antioxidant activity of the different extracts and fractions of aerial parts of otostegia persica (burm.) boiss. were evaluated using beta-carotene bleaching and lipid peroxidation methods. the inhibitory activity of the plant extracts on the peroxidation of linoleic acid were measured by ferric thiocyanate method in comparison to methanolic extracts of green tee, ginkgo biloba, vit.e and b...

Antimicrobial activity and cytotoxicity of fifty one extracts of different parts of 14 plants were studied. Ethanol, methanol, aqueous, butanol, and n-hexane extracts were tested against three gram negative, two gram positive bacteria, and two fungi. Cytotoxicity and phytochemical screening were determined using MTT and TLC assays, respectively. Of the fifty one extracts, twenty two showed acti...

  Background: Some of medicinal plants are a potential source of new drugs to improve the treatment of Chagase disease whose treatment is still a challenge. Here in this screening, the in vitro trypanocidal activity of some fractions for 16 medicinal plants, collected from the northern part of Iran, has been reported.   Methods: Aerial parts of the plants were dried carefully and followed by ex...

The aim is to evaluate the antibacterial and antifungal properties of extracts obtained from Lysimachia nummularia L. in order be able introduce these into pharmaceutical products obtain useful infectious pathology oro-dental cavity. Extracts different parts studied species have been chemically characterized: total polyphenols 40% ethanolic determined caffeic chlorogenic acids trans-resveratrol...

background and objectives: dorema ammoniacum d. don (apiaceae) is a monocarpic plant endemic to central iran. the gum resin of this species is a known therapeutic agent in iranian, indian and western traditional medicines. the aim of the present study was to investigate essential oil constituents and evaluation of antioxidant and antibacterial activities of the essential oils and extracts of d....

: in this study, the essential oil obtained by hydrodistillation of the aerial parts of sclerorhachis platyrachis (boiss.) podlech ex rech. f. (compositae), growing wild in sabzevar, khorasan razavi province (iran), was analyzed by gc and gc/ms. the total yield of volatiles was 0.38% (w/w). sixty- three compounds representing 89.2% of the aerial parts oil were identified.  the main components o...

background and objectives: salvia chloroleuca rech. f. & allen., is an endemic species growing wildly in north east and center parts of iran but there is no information about its safety. to provide information about the safety of the species, we evaluated its acute and sub chronic toxicity in rats. methods: in acute toxicity study, the aqueous methanol (80%) extract at a single dose of 2000...

The objective of this research was to study the biological activities of various extracts and the chemical composition of the essential oil Trigonella monantha C. A. Mey. subsp. monantha by gas chromatography (GC) and gas chromatography-mass spectroscopy (GC-MS), from the compounds derived from the aerial parts. The overall results of T. monantha tests allow us to conclude various extracts [hex...