ion from the –CH2– groups in a-position to a C@C double bond (C7–H in D-sterols, C23–H in the two avenasterols and D-fucosterol, C6–H in D-sterols, or C23–H in D-gramisterol, D-episterol and D-citrostadienol). In the case of 2-propene, the experimentally determined BDE for CH2@CH–CH2–H bond (370 ± 2) kJ mol 1 was practically identical with the C6H5CH2–H BDE for toluene due to the conjugation in...

Gracilariopsis Persica (Rhodophyta) is one of the most abundant algae, introduced newly from the Indian Ocean. In this study,   the main sterols of the algae have been isolated and identified. Separation and purification of the compounds was carried out on silica gel and sephadex LH20 column chromatography (CC) and high performance liquid chromatography (HPLC) to obtain five pure compounds 1-5....

Gracilariopsis Persica (Rhodophyta) is one of the most abundant algae, introduced newly from the Indian Ocean. In this study,   the main sterols of the algae have been isolated and identified. Separation and purification of the compounds was carried out on silica gel and sephadex LH20 column chromatography (CC) and high performance liquid chromatography (HPLC) to obtain five pure compounds 1-5....

The metabolism of the bicyclic monoterpene ∆-carene was investigated in vitro using human liver microsomes as well as human smoker/non-smoker lung microsomes and 12 different recombinant cytochrome P450 enzymes coexpressed with human CYP-reductase in Escherichia coli cells. We detected two metabolites using GC-MS analysis. The mass fragmentation indicated for one metabolite hydroxylation in the...

The plant of Desmodium triflorum Linn (Fabaceae) are reported to have great medicinal value. The aim of this study to evaluate pharmacognostic evaluation including examination of morphological characters, ash value, powder analysis, and extractive values were carried out. Phytochemical screening including chemical examination and chromatographic study were also carried out. This would help to s...

gracilariopsis persica (rhodophyta) is one of the most abundant algae, introduced newly from the indian ocean. in this study,   the main sterols of the algae have been isolated and identified. separation and purification of the compounds was carried out on silica gel and sephadex lh20 column chromatography (cc) and high performance liquid chromatography (hplc) to obtain five pure compounds 1-5....