Analysis of diurnal and seasonal variation of B-Citronellol and citronellyl pentanoate in the essential oil of pycnocycla spinosa decne

Anti Pycnocycla spinosa var. Spinosa aerial parts were collected at different times of the day, and weekly for two growing seasons [May- September]. Uniformly dried samples were hydrodistilled and analyzed for essential oil content of B-citronellol and citronellyl pentanoate. The results showed that the content of beta citronellol in the essential oil of the aerial part in different season varied 1.0-10.7%, and of citronellyl pentanoate did 0.0- 18.6. Plant harversted between 7:00 a.m. and 7:00 p.m. provided essential oil with high beta-citronellol and citronellyl pentanoate, 8.1 and 18.2% respectively. Data obtained from seasonal study showed that the best time to obtain beta-citronellol and citronellol pentanoate is end of the spring and summer

Production of volatile sulphides in allium porrum cell cultures

Production of volatile sulphides in cell cultures of Allium porrum is described. Allium porrum calluses were initiated from whole seedlings. The high growth rate of Allium porrum callus was achived in Murashige and Skoog media containing only 1 ppm 2, 4-Dichlorophenoxy acetic acid. The routine method of solvent extraction of volatile sulphides was used for Allium porrum and the concentrated extract was subjected to capillary GC and GC-MS. Dipropyl disulphide and 4-methyl thiazolethanol were identified in A. porrum aggregated suspension cells

Composition of the essential oil of phcnocycla spinosa Decne. E. X. Boiss. from Isfahan.

The hydrodistilled aerial parts oil of Pycnocycla spinosa var. spinosa was analyzed by GC and GC/MS. Thirty three components were identified. Geranyl isovalerate [14.9%], caryophyllene oxide [10.6%], alpha -eudesmol [9.2%]