In view of the significant neuroprotective effect of Clausena lansium, we continued to separate the n-butanol and the water extracts from the stems of C. lansium in order to find the leading compounds with significant activity. Two new phenolic glycosides, Clausenolside A-B (1-2), one new pair of phenolic enantiomers (3a, 3b), and two new monoterpenoids, clausenapene A-B (4-5), together with tw...

Wild-type tobacco (Nicotiana tabacum) plants emit low levels of terpenoids, particularly from the flowers. By genetic modification of tobacco cv Petit Havana SR1 using three different monoterpene synthases from lemon (Citrus limon L. Burm. f.) and the subsequent combination of these three into one plant by crossings, we show that it is possible to increase the amount and alter the composition o...

Cells o f Petroselinum crispum cv. “Paramount” and “Plain-leaved” immobilized in polyure­ thane foam retained the biotransformational characteristics o f their freely suspended cells for certain monoterpenic substrates. Immobilized cells o f both cultivars were more efficient than their free cells in isomerizing geraniol into nerol, but less efficient (<60% ) in reducing the alde­ hydes, citral...

methanolic extract of 15 iranian medicinal plants were prepared and tested for their cytotoxic activities against three cancer cell lines (mcf7, hepg2 , wehi164) and one normal cell line (mdbk). some plants showed cytotoxic activities. the extract of ferula szowitsiana root, which proved to be the most active, was chosen for further phytochemical studies. the major compounds of the most potent ...

     Callus and suspension cultures of Lavandula angustifolia Mill. (Lamiaceae) were established and the effect of different culture media on growth rate was investigated. Terpenoids added to suspension culture to investigate their biotrans-formation. All samples were analyzed by gas chromatography (GC) and GC-mass spectroscopy (MS). Octan-1-ol, citronellol, linalool, borneol and geran...

Ginger is a flowering plant in the Zingiberaceae family (Zingiber officinale Roscoe). The most essential ingredient our meal ginger, which utilized as spice. One of earliest recognized medicinal herbs, ginger has been used for centuries to treat variety human diseases. Sesquiterpenoids, monoterpenoids, volatile oils (1–5%), and non-volatile pungent chemicals such gingerols, shogaols, paradols, ...

In a screening program for new agrochemicals from Chinese medicinal herbs and wild plants, essential oil of Homalomena occulta (Lour.) Schott rhizome was found to possess strong nematicidal activity against the root-knot nematodes, Meloidogyne incognita (Kofoid and White) Chitwood. The essential oil of H. occulta rhizome was extracted via hydrodistillation and investigated by gas chromatography...