نتایج جستجو برای: ionone

تعداد نتایج: 330  

Journal: :Journal of experimental botany 2010
Susanne Baldermann Masaya Kato Miwako Kurosawa Yoshiko Kurobayashi Akira Fujita Peter Fleischmann Naoharu Watanabe

Carotenoids are the precursors of important fragrance compounds in flowers of Osmanthus fragrans Lour. var. aurantiacus, which exhibit the highest diversity of carotenoid-derived volatiles among the flowering plants investigated. A cDNA encoding a carotenoid cleavage enzyme, OfCCD1, was identified from transcripts isolated from flowers of O. fragrans Lour. It is shown that the recombinant enzym...

Journal: :Agricultural and Biological Chemistry 1972

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2003
Pinar Akbay Ihsan Caliş Jörg Heilmann Otto Sticher

From the aerial parts of Ajuga salicifolia (L.) Schreber, a new ionone glycoside (3beta-hydroxy-7,8-dihydro-4-oxo-beta-ionol-9-O-beta-D-glucopyranoside) was isolated, along with the known compounds, corchoionoside C, 8-O-acetylmioporoside, ajugol, harpagide, 8-O-acetylharpagide, lavandulifolioside and leonosides A and B. This is the first report of the occurrence of ionone glycosides and 8-O-ac...

Journal: :Natural Volatiles and Essential Oils 2021

The essential oil composition from the leaves of Strychnos axillaris Colebr. (Loganiaceae) growing in Malaysia was examined for first time. obtained by hydrodistillation and fully characterized gas chromatography (GC-FID) chromatography-mass spectrometry (GC-MS). In total, 15 components were identified oil, which made up 87.2% total oil. is composed mainly ?-ionone (20.2%), ?-ionone (19.5%), bi...

Journal: :Chemistry Letters 1976

2012
Peng Zou Yi-Jun Jin Liu-Fang Xiang Dong-Ping Sun Shu-Lin Yang

In the title curcumin-ionone derivative, C(20)H(23)NO(3), the dihedral angle between the cyclo-hexene and benzene rings is 21.03 (8)°, with both double bonds in the inter-linking olefinic chain adopting E conformations. Two of the methyl-ene groups of the β-ionone ring are disordered over two sets of sites with occupancy ratios of 0.50:0.50 and 0.60:0.40. In the crystal, mol-ecules are linked b...

2014
Yufeng Sun Hao Yu Jing-Jiang Zhou John A. Pickett Kongming Wu

Green leaf bug Apolygus lucorum (Meyer-Dür) is one of the major pests in agriculture. Management of A. lucorum was largely achieved by using pesticides. However, the increasing population of A. lucorum since growing Bt cotton widely and the increased awareness of ecoenvironment and agricultural product safety makes their population-control very challenging. Therefore this study was conducted to...

Journal: :Canadian Journal of Chemistry 1961

Journal: :Applied microbiology 1975
T C Lee D B Rodriguez I Karasawa T H Lee K L Simpson C O Chichester

The effects of diphenylamine, dimethyl sulfoxide, streptomycin, AMO-1618, and beta-ionone on the carotene composition of a wild-type and three mutant strains of Phycomyces blakesleeanus have been examined. Diphenylamine increased the phytoene and phytofluene concentrations of all strains while reducing the levels of the color carotenes. Dimethyl sulfoxide reduced the concentration of both cycli...

Journal: :Phytomedicine : international journal of phytotherapy and phytopharmacology 2013
J Bero C Beaufay V Hannaert M-F Hérent P A Michels J Quetin-Leclercq

Keetia leucantha is a West African tree used in traditional medicine to treat several diseases among which parasitic infections. The dichloromethane extract of leaves was previously shown to possess growth-inhibitory activities on Plasmodium falciparum, Trypanosoma brucei brucei and Leishmania mexicana mexicana with low or no cytotoxicity (>100 μg/ml on human normal fibroblasts) (Bero et al. 20...

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