Different types of terpenoids were separated from extract of bark of Oroxylum indicum. The composition of phytoconstituents terpenoids was determined by GC and GC-Mass technique. Sixteen components were identified, out of which three components are major constituents. Identification of all the components was done by spectral studies, retention time and by comparing with standards. PHYTOCHEMISTRY

The paper studies the individual composition of n-alkanes, polycycloaromatic hydrocarbons, steroids, bi-, tri-, and pentacyclic terpenoids of two peat deposits of rich fen Kirek located in Western Siberia. Considering the individual n-alkanes concentrations, some indexes were calculated to estimate the humidity during peat formation. It was shown that the pH of peat medium primarily affects ste...

The terpenoids constitute the largest class of natural products and many interesting products are extensively applied in the industrial sector as flavors, fragrances, spices and are also used in perfumery and cosmetics. Many terpenoids have biological activities and also used for medical purposes. In higher plants, the conventional acetate-mevalonic acid pathway operates mainly in the cytosol a...

Allylic oxidations of olefins to enones allow the efficient synthesis of value-added products from simple olefinic precursors like terpenes or terpenoids. Biocatalytic variants have a large potential for industrial applications, particularly in the pharmaceutical and food industry. Herein we report efficient biocatalytic allylic oxidations of spirocyclic terpenoids by a lyophilisate of the edib...

Foliage samples were taken from sixteen trees in eight natural populations of Juniper us pinchotii Sudw. in July and again in January to determine if seasonal variations occur in the volatile terpenoids and if the summer or winter collections would be more variable. Gas/liquid chromatographic analysis revealed that significant differences do occur from summer to winter in the relative compositi...