Toluene, methanol, ethyl ether, and methyl-ethyl ketone were absorbed separately by TEG solution.
After removal of theorganic solvent under reduced pressure, the aqueous solution was partitioned with ethyl ether toyield ethyl ether and aqueous fraction.
Esters of nitrous acid are covalent compounds having the structure R−O−N−O, in which R represents a carbon-containing combining group such as ethyl (C2H5) in ethyl nitrite.
The concentrations of (a) ethyl butyrate, (b) ethyl propionate, (c) ethyl hexanoate and (d) ethyl benzoate.
carbon dioxide ethyl caproate, ethyl caprylate and ethyl caprate which are of importance in supercritical extraction.
Out of ethyl hexanoate, ethyl octanoate and ethyl nonanoate, only ethyl nonanoate was found to have significant (p < 0.05) binding with beta-lactoglobulin [38].
Ethyl butanoate, ethyl hexanoate, and ethyl heptanoate contributed to peach aroma due to their low odor thresholds and high concentrations.
3-Amino-9-ethyl-carbazole, ethyl alcohol, ethyl acetate, chloroform, N,N-dimethylacetamide, N,N-dimethylformamide, dimethyl sulfoxide, acetonitrile and sodium hypochlorite (NaOCl, 37%) were supplied from Merck Chemical Co.
Twelve aroma compounds (isobutanol, isoamyl alcohol, 2-phenylethanol, acetaldehyde, ethyl acetate, propyl acetate, isobutyl acetate, isoamyl acetate, ethyl butyrate, ethyl propionate, ethyl hexanoate and ethyl benzoate) were identified in the fermented broth using headspace gas chromatography mass spectrometry analysis.
3Ethanol → Ethyl acetate: ethyl acetate soluble fraction of the ethanol extract.
(mean in brackets) Water 5.2 Ethanol 6.4 5.4 – 12.8 (8.9) Ethanol → Ethyl acetate1 3.5 Acetone 3.7 1.4 - 5.1 (2.6) Ethyl acetate 1.4 Dichloromethane 0.6 1Ethanol → Ethyl acetate: ethyl acetate soluble fraction of the ethanol extract.
