Flavor & Fragrance
Product Name:
3-Octanone, Amyl ethyl ketone, EAK, ETHYL AMYL KETONE, Ethyl pentyl ketone
CAS Number:
Molecular Weight:
Molecular Formula:
Olfactive Family:
Odor description:
Sweet, ripe banana odor.
Taste description:
Characteristic blue cheese, fermented.
Chemical Structure

Related Sweet Products

Reference Reading

1.Ruthenium complexes with dendritic ferrocenyl phosphanes: synthesis, characterization, and application in the catalytic redox isomerization of allylic alcohols.
Neumann P1, Dib H, Sournia-Saquet A, Grell T, Handke M, Caminade AM, Hey-Hawkins E. Chemistry. 2015 Apr 20;21(17):6590-604. doi: 10.1002/chem.201406489. Epub 2015 Mar 12.
An efficient system for the catalytic redox isomerization of the allylic alcohol 1-octen-3-ol to 3-octanone is presented. The homogeneous ruthenium(II) catalyst contains a monodentate phosphane ligand with a ferrocene moiety in the backbone and provides 3-octanone in quantitative yields. The activity is increased by nearly 90 % with respect to the corresponding triphenyl phosphane ruthenium(II) complex. By grafting the catalyst at the surface of a dendrimer, the catalytic activity is further increased. By introducing different spacers between ferrocene and phosphorus, the influence on the electronic properties of the complexes is shown by evaluating the electrochemical behavior of the compounds.
2.Chemodiversity and biodiversity of fungi associated with the pine weevil Hylobius abietis.
Azeem M1, Terenius O2, Rajarao GK3, Nagahama K4, Nordenhem H5, Nordlander G5, Borg-Karlson AK6. Fungal Biol. 2015 Aug;119(8):738-46. doi: 10.1016/j.funbio.2015.04.008. Epub 2015 May 7.
The pine weevil Hylobius abietis is a severe pest of conifer seedlings in reforestation areas. Weevils lay eggs in the root bark or in the soil near roots of recently dead trees and cover the eggs with frass (feces combined with chewed bark), possibly to avoid conspecific egg predation. The aim of the present investigation focused on isolation, identification, and volatile production of fungi from pine-weevil feces and frass. Fungi were isolated from weevil frass and feces separately, followed by identification based on ITS sequencing. Fifty-nine isolates belonging to the genera Penicillium, Ophiostoma, Mucor, Leptographium, Eucasphaeria, Rhizosphaera, Debaryomyces, and Candida were identified. Volatile organic compounds (VOCs) produced by the fungal community and fungal isolates cultured on weevil-frass broth were identified by SPME-GCMS. Major VOCs emitted from the fungal community and pure isolates were species- and strain specific and included isopentylalcohol, styrene, 3-octanone, 6-protoilludene, methyl salicylate, 3-methylanisole, 2-methoxyphenol, and phenol.
3.Recent developments in the analysis of musty odour compounds in water and wine: A review.
Callejón RM1, Ubeda C2, Ríos-Reina R1, Morales ML1, Troncoso AM3. J Chromatogr A. 2016 Jan 8;1428:72-85. doi: 10.1016/j.chroma.2015.09.008. Epub 2015 Sep 5.
One of the most common taints in foods is a musty or earthy odour, which is commonly associated with the activity of microorganisms. Liquid foods, particularly wine and water, can be affected by this defect due to the presence of certain aromatic organic compounds at very low concentrations (ng/L) consistent with human threshold perception levels. The volatile compounds responsible for a mouldy off-aroma include approximately 20 compounds, namely, haloanisoles, geosmin, 2-methylisoborneol, several alkyl-methoxypyrazines, 1-octen-3-ol, 1-octen-3-one, trans-octenol, 3-octanone, fenchol and fenchone. Methods for determining these very low concentrations of odour compounds must be extremely sensitive and selective with efficient preconcentration treatments. A number of extraction techniques based on LLME (liquid-liquid microextraction), SPME (solid-phase microextraction) or SBSE (stir-bar sorptive extraction) can be applied and should be selected on a case-by-case basis.
4.Phase-transition oscillations induced by a strongly focused laser beam.
Devailly C1, Crauste-Thibierge C1, Petrosyan A1, Ciliberto S1. Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Nov;92(5):052312. doi: 10.1103/PhysRevE.92.052312. Epub 2015 Nov 24.
We report the observation of a surprising phenomenon consisting in a oscillating phase transition which appears in a binary mixture when this is enlightened by a strongly focused infrared laser beam. The mixture is poly-methyl-meth-acrylate (PMMA)-3-octanone, which has an upper critical solution temperature at T(c)=306.6K and volume fraction ϕ(c)=12.8% [Crauste et al., arXiv:1310.6720, 2013]. We describe the dynamical properties of the oscillations, which are produced by a competition between various effects: the local accumulation of PMMA produced by the laser beam, thermophoresis, and nonlinear diffusion. We show that the main properties of this kind of oscillations can be reproduced in the Landau theory for a binary mixture in which a local driving mechanism, simulating the laser beam, is introduced.