Mammalian cell proteins, modified post-translationally by derivatives of [3H]mevalonic acid, were subjected to methylation and sulfonium salt cleavage reactions previously used to release isoprenoids from cysteine residues in yeast peptides. The labeled isoprenoid extracted into chloroform comigrated with farnesol through a series of chromatography steps including Sep-Pak C-18 fractionation, si...

The leaf terpenoid compositions of nine Lauraceae species, viz., Neolitsea pallens, Lindera pulcherrima, Dodecadenia grandiflora, Persea duthiei, Persea odoratissima, Persea gamblei, Phoebe lanceolata, Cinnamomum tamala, and Cinnamomum camphora, collected from the Himalayan region (India) were examined by GC, GC/MS, and NMR analyses in order to determine the similarities and differences among t...

Lactic acid bacteria, such as Lactococcus lactis, are attractive hosts for the production of plant-bioactive compounds because of their food grade status, efficient expression, and metabolic engineering tools. Two genes from strawberry (Fragaria x ananassa), encoding an alcohol acyltransferase (SAAT) and a linalool/nerolidol synthase (FaNES), were cloned in L. lactis and actively expressed usin...

When atmosphere from cotton plants (Gossypium hirsutum L., var. Deltapine Smoothleaf) was condensed by passing it over the expansion coil of an air conditioner and three 1-hour collections per day (early morning, noon, and late afternoon) were made, the total essential oils were found to consist of 50 to 60% beta-bisabolol (I(k) 1660) and gamma-bisabolene (I(k) 1550) and 30 to 40% geraniol (I(k...

Hans-Peter Hanssen Lehrstuhl für Pharmakognosie, Bundesstraße 43, D-2000 Hamburg 13, Bundesrepublik Deutschland and Wolf-Rainer Abraham Gesellschaft für Biotechnologische Forschung mbH (G BF), Mascheroder Weg 1, D-3300 Braunschweig, Bundesrepublik Deutschland Z. Naturforsch. 41c, 959—962 (1986); received July 7, 1986 Lentinellus cochleatus, Basidiomycotina, Liquid Cultures, Fungal Volatiles, Fu...

Volatile compounds principally contribute to flavor of strawberry (Fragaria × ananassa) fruit. Besides genetics, cultivation conditions play an important role in fruit volatile formation. Compared soil culture as control, effects substrate on two cultivars (‘Amaou’ and ‘Yuexin’) were investigated. GC-MS analysis revealed significant difference contents ‘Amaou’ caused by culture. No effect was o...

The study investigated the phytochemical and essential oil compositions of Piper umbellatum Linn leaves. leaves were detached from stalk washed carefully under running tap water, air dried at room temperature (20-25 ) for 14 days. ground into a fine powder using grinding mill. Phytochemical oils composition analyzed GC/MS. revealed higher concentrations phenolic acids (434.95164 mg/100 g), tann...