Extraction isolation of hypericins from particular kinds of St. john's wort (hypericum perforatum)

The paper deals with development of the effective mode of isolation of hypericins from St. John's Wort including Soxhlet extraction with ethanol as a solvent. In Central Botanical Garden of the NAS of the RB were found out the kinds of St. John's Wort, which contain the largest amounts of hypericins. They may be used as material for producing of phytopreparations and drugs for treating oncological diseases by the method of photodynamic therapy

Component composition study of Ocimum basilicum L. essential oil from plant material of the republic of Belarus

The essential oil of Ocimum basilicum L. grown in Republic of Belarus was analyzed by means of GLC. More than 10 compounds were identified in essential oil of Ocimum basilicum L. The representative and characteristic components were linalool, methylchavicol, 1,8-cineole, camphor, ?and ?-pinene, ?-terpineol, eugenol, ?-caryophyllene. The methods of plant material preparation and long-term storage of essential oil influence on component composition

Chromatographic analysis and separation of hypericin containing extract of St. john's wort

It has been presented qualitative and quantitative chromatographic analysis of hypericin containing extracts of St. John's Wort which could be used for producing drugs for treating of oncological diseases by the method of photodynamic therapy. The optimal conditions of carrying out of TLC and HPLC analysis of ethanol St. John's Wort extracts have been selected. The chromatographic separation of St. John's Wort extract has been carried out assisted by Diaion HP-20 sorbent. This separation gave the opportunity to enrich the initial extract with hypericins more than in 4 times