beta-ionone and coumarin

beta-ionone has been researched along with coumarin* in 2 studies

Other Studies

2 other study(ies) available for beta-ionone and coumarin

Article	Year
Chemical defenses of Trifolium glanduliferum against redlegged earth mite Halotydeus destructor. Journal of agricultural and food chemistry, 2005, Aug-10, Volume: 53, Issue:16 Trifolium glanduliferum Boiss. was resistant to redlegged earth mite, Halotydeus destructor Tucker (Acari: Penthaleidae), feeding compared with Trifolium subterraneum L. Extracts from T. glanduliferum leaves, obtained with dichloromethane and methanol, acted as feeding deterrents to the redlegged earth mite. Bioassay-directed fractionation of the extracts led to the isolation of several metabolites, coumarin, alpha-and beta-ionone, linalool, medicarpin, that were shown to be deterrent in laboratory experiments. The compounds contributing to the defense of T. glanduliferum were different from those influencing mite feeding on T. subterraneum leaves. Topics: Animals; Coumarins; Flowers; Insecticides; Methylene Chloride; Mites; Norisoprenoids; Phytol; Plant Extracts; Plant Leaves; Trifolium	2005
Fullerene modified supported lipid membrane as sensitive element of sensor for odorants. Biosensors & bioelectronics, 2001, Volume: 16, Issue:9-12 A supported lipid bilayer membrane (s-BLMs) formed on a freshly cleaved metallic surface by the Tien method was applied for the design of an electrochemical sensor for detection of neutral odorant molecules. The lipid bilayer was modified by saturation with fullerene C(60), which possesses electron mediator properties and facilitates a redox reaction occurring at the border of the lipid membrane and metal surface. I(2)/I(-) and ferrocenyl trimethyl bromide were used as electroactive marker ions. The smell compounds adsorb on the surface of the lipid layer and change its structure. As a consequence the ratio of marker ion penetration to the lipid membrane is altered. The magnitude of these changes depends on the amount and chemical structure of adsorbed molecules. The research presented was carried out by cyclic voltammetry. The magnitude of the electrochemical signal generated by smell compounds was correlated with other parameters describing their molecular properties such as: octanol/water partition coefficients and dipole moments. Topics: 1-Octanol; Acyclic Monoterpenes; Biosensing Techniques; Carbon; Coumarins; Electrochemistry; Fullerenes; Lipid Bilayers; Membranes, Artificial; Menthol; Molecular Structure; Norisoprenoids; Odorants; Terpenes	2001

Article

Year

Chemical defenses of Trifolium glanduliferum against redlegged earth mite Halotydeus destructor.

Journal of agricultural and food chemistry, 2005, Aug-10, Volume: 53, Issue:16

Trifolium glanduliferum Boiss. was resistant to redlegged earth mite, Halotydeus destructor Tucker (Acari: Penthaleidae), feeding compared with Trifolium subterraneum L. Extracts from T. glanduliferum leaves, obtained with dichloromethane and methanol, acted as feeding deterrents to the redlegged earth mite. Bioassay-directed fractionation of the extracts led to the isolation of several metabolites, coumarin, alpha-and beta-ionone, linalool, medicarpin, that were shown to be deterrent in laboratory experiments. The compounds contributing to the defense of T. glanduliferum were different from those influencing mite feeding on T. subterraneum leaves.

Topics: Animals; Coumarins; Flowers; Insecticides; Methylene Chloride; Mites; Norisoprenoids; Phytol; Plant Extracts; Plant Leaves; Trifolium

2005

Fullerene modified supported lipid membrane as sensitive element of sensor for odorants.

Biosensors & bioelectronics, 2001, Volume: 16, Issue:9-12

A supported lipid bilayer membrane (s-BLMs) formed on a freshly cleaved metallic surface by the Tien method was applied for the design of an electrochemical sensor for detection of neutral odorant molecules. The lipid bilayer was modified by saturation with fullerene C(60), which possesses electron mediator properties and facilitates a redox reaction occurring at the border of the lipid membrane and metal surface. I(2)/I(-) and ferrocenyl trimethyl bromide were used as electroactive marker ions. The smell compounds adsorb on the surface of the lipid layer and change its structure. As a consequence the ratio of marker ion penetration to the lipid membrane is altered. The magnitude of these changes depends on the amount and chemical structure of adsorbed molecules. The research presented was carried out by cyclic voltammetry. The magnitude of the electrochemical signal generated by smell compounds was correlated with other parameters describing their molecular properties such as: octanol/water partition coefficients and dipole moments.

Topics: 1-Octanol; Acyclic Monoterpenes; Biosensing Techniques; Carbon; Coumarins; Electrochemistry; Fullerenes; Lipid Bilayers; Membranes, Artificial; Menthol; Molecular Structure; Norisoprenoids; Odorants; Terpenes

2001