Chemical composition, antimicrobial and insecticidal activities of the essential oils ofConyza linifoliaandChenopodium ambrosioides

The toxicity and physiological effect of essential oil from Chenopodium ambrosioides against the diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae)

“…However, studies reporting on the percentage composition of ascaridole in the EO have differed in their findings. For example, ascaridole accounted for a large proportion of C. ambrosioides EO in some studies (Cavalli et al, 2004;Monzote et al, 2014), but was also found at much lower levels in others (Harraz et al, 2015;Wei et al, 2010a). Such discrepancies are likely due to variation in physiology, genetic factors, harvest time, processing methods (Harraz et al, 2015), or chemotypes (Chekem et al, 2010).…”

“…For example, ascaridole accounted for a large proportion of C. ambrosioides EO in some studies (Cavalli et al, 2004;Monzote et al, 2014), but was also found at much lower levels in others (Harraz et al, 2015;Wei et al, 2010a). Such discrepancies are likely due to variation in physiology, genetic factors, harvest time, processing methods (Harraz et al, 2015), or chemotypes (Chekem et al, 2010). While we were unable to perform a bioassay on ascaridole due to technical limitations, investigating the insecticidal bioactivities of ascaridole against P. xylostella is a fruitful area of research.…”

“…In the area of insect pest control, the toxicity of C. ambrosioides extracts, essential oils, and powder has been reported mainly in insects of medical importance (Denloye et al, 2009;Harraz et al, 2015;Zhu et al, 2012) and storage insect pests (Chu et al, 2011;Delobel and Malonga, 1987;Denloye et al, 2010;Ntonifor et al, 2011;Tapondjou et al, 2002Tapondjou et al, , 2003.…”

Chemical Composition, Antibacterial, Schistosomicidal, and Cytotoxic Activities of the Essential Oil of Dysphania ambrosioides (L.) Mosyakin & Clemants (Chenopodiaceae)

“…Previous studies have indicated that ascaridole, which has a biosynthetic relationship with α ‐terpinene, occurs as a major constituent of DA‐EO or even in low levels (from 0 to 5%) . Discrepancies are likely due to variation in physiology, genetic factors, harvest time, processing methods, or chemotypes . Ascaridole is a heat‐sensitive compound that rearranges easily upon treatment at 150 °C, to form isoascaridole .…”

A phytochemical of modern medicinal perspective

“…Conyza linifolia and C. ambrosioides were subjected to hydrodistillation for the separation of volatile oil and further GC-MS technique was performed for their analysis. From the results, it was concluded that essential oil of Conyza linifolia mainly contained sesquiterpenes ascaridole whereas C. ambrosioides was found to contain significant amount of monoterpenes [33]. Supercritical fluid extraction and hydrodistillation method were used for the separation of essential oil from L. palustre aerial parts.…”