Background & Aim: The essential oils are the most important secondary aromatic biochemical compounds in plants and even in some animals. They are of great importance because of their aromatic, flavoring and preventing properties from deterioration in food industries. According to ethnobotany study of aerial parts of Bakhtiari celery or Kelus (Kelussia odoratissma  Mozaffarian) in dairy...

from the aerial parts of tanacetum balsamita l. (compositae) a flavonol aglycon was iso­lated using chromatographic techniques. the structure of this compound was determined using spectroscopic methods (uv, h-nmr and ms) as 3',4',5,7-tetrahydroxy flavonol (quercetin).

Background: The genus Tanacetum (Compositae) is represented by 26 species in the flora of Iran, 12 of them are endemic. One report on the analysis of essential oil of Tanacetum polycephalum Boiss. species has been published. Objective: Aim of this study is to determine the chemical composition of the hydrodistilled oil of Tanacetum pinnatum Boiss. of Iranian origin for the first time. Metho...

Parthenium hysterophorus L. (congress grass, congress weed, carrot weed, wild feverfew, the “Scourge of India”) is an exotic weed that was accidentally introduced in India in 1956 through imported food grains.[1] It has become a common weed causing dermatitis of epidemic proportions.[2] The epithet “congress weed” refers to the US congress (who allocated the shipment for Pune, India).[3] In Pun...

Congress grass, Parthenium hysterophorus L., of the family Asteraceae (tribe: Heliantheae), is an erect and much branched annual or ephermeral herb, known for its notorious role as environmental, medical, and agricultural hazards. It is believed to have been introduced into India and Australia from North America and in the last few years the weed has emerged as the seventh most devastating weed...

A population of Parthenium hysterophorus collected in Salta Argentina afforded two ambrosanolides, 2beta-hydroxycoronopilin and 1alpha,2beta,4beta-trihydroxypseudoguaian-6beta,12-olide, as well as five known others. Plants of the fructification from those transplanted from the Puna Argentina at 1200 m over the sea level produced hymenin.