Isoamyl Caprylate

Amyl Octanoate FEMA No. 2079 Amyl Caprylate Isoamyl Caprylate Isoamyl Octanoate 214.35/C13H2602/ CH3(CH2)6COOC5Hn colorless liq/ fruity v—ale, most fixed oils ss—prop glycol ins—gly, water/ 260° 1 mL in 7 mL 80% ale remains clear to 10 mL... 

Isoamyl caproate. See Isoamyl hexanoate Isoamyl caprylate. See Isoamyl octanoate Isoamyl chloride CAS 107-84-6... 

Synonyms Isoamyl caprylate Isopentyl octanoate 3-Methylbutyl octanoate Octanoic acid, isopentyl ester Octanoic acid, 3-methylbutyl ester... 

More recently Webb et al. (1952) reported no isopropyl alcohol in a wine fusel oil sample. They did find 4.1% n-propyl, 1.9% n-butyl, 4.9% ( — )-sec-butyl, 18.3% isobutyl, 9.6% ( —)-2-methyl-l-butanol, 54% isoamyl, trace of n-amyl, 1.5% n-hexyl, 5.6% esters, and traces of acetic and butyric acids and acetal. The esters included 0.19% ethyl caproate, 0.60% ethyl caprylate, 0.52% isoamyl caprylate, 1.32% ethyl caprate, 0.38% isobutyl caprate, 0.58% ethyl laurate, 0.25% ethyl palmitate, a trace of butyrate ester, 0.06% myristate ester. Probably present were methyl salicylate, isoamyl caprate, active amyl caproate, isoamyl caproate, active amyl caprylate, isobutyl caprylate, active amyl caprate, active amyl laurate, and isoamyl laurate. 

Yields of the primary alkyl acrylates vary somewhat, owing to occasional losses through formation of polymer, but are usually in the range of 85-99%. Some secondary alcohols react very slowly, others readily. The method has been applied to more than fifty alcohols, some of which (with percentage yields) are listed below ethyl, 99% isopropyl, 37% -amyl, 87% isoamyl, 95% -hexyl, 99% 4-methyl-2-pentyl, 95% 2-ethylhexyl, 95% capryl, 80% lauryl, 92% myristyl, 90% allyl, 70% fur-furyl, 86% citronellyl, 91% cyclohexyl, 93% benzyl, 81% (3-ethoxyethyl, 99% /S-(/3-phenoxyethoxy) ethyl (from diethylene glycol monophenyl ether), 88%. 

Iodine Potassium Iodide Dodecylbenzene Tridecyibenzene Hydroquinone Propionaldehyde Methylform amide Diacetone Alcohol Isoamyl Alcohol Pentanedione (2,4-) Acetylacetone Paraldehyde Butylaldehyde Butyraldehyde Levulinic Acid Dioctyl Adipate Acetic Acid Butyl Ester Butyl Acetate Dioxane (1,4-) Dioxane Dioxane (p-) Isoamyl Acetate Thiodiacetic Acid Butyl Stearate Santoprene 201-73 Kamax T-260 Adipic Acid Ethylene Chloroformate Caprylic Acid Octanoic Acid Hexamethylenediamine Butyl Carbitol Acetate Decane Carbon Dioxide Dimethylamine Sodium Methylate Freon 114B2 Tetrachloropentane Santicizer 141 Santoprene 201-64 Ecolan Hetron 99P Calcium Hydride Triton Sulfolane Tributyl Phosphate Tributylphosphate Sodium Diacetate Methacrylonitrile... 

The production of the higher alcohols, the acetates of isoamyl alcohol and phenylethyl alcohol, and the ethyl esters of the C6-C10 fatty acids has been studied in semiaerobic sugar fermentations by strains of . cerevisiae and S. uvarum. S. cerevisiae generally produced more esters than S. uvarum. Isoamyl acetate was the main ester produced by >. cerevisiae. and others, in decreasing order, were ethyl caprylate, ethyl caproate, ethyl caprate and phenylethyl acetate(39). Several unusual thio compounds have been produced by Saccharomvces in model anaerobic fermentations using amino acids such as methionine as the sole carbon source(21). These model fermentations produce methylthiopropanal and traces of other sulfur containing compounds, such as methionyl acetate and 2-methyltetrahydrothiophene-3-one. 

The human sense of taste can detect only four flavors - sweet, sour, bitter, and salty. The remaining flavor notes detected are, in reality, aromas. Therefore, many flavor-producing compounds are volatile, making them amenable to purge and trap GLC. This is particularly applicable to the study of alcoholic beverages, which are perfect examples of a food that relies heavily on both aroma and taste for product acceptance. There are dozens of compounds involved in flavor. Some of those are propanol, ethyl butyrate, isoamyl acetate, ethyl caproate, ethyl caprylate and ethyl caprate. 

Ethyl caprylate, H3C(CH2)6COOC2H5 Isoamyl acetate,H3CCOOCH2CH2CH(CH3)2 1-Propanol, H3C(CH2)5 OH... 

Butoxyethoxy ) -ethanol Quinoline Propiophenone Ethyl benzoate Menthol Ethyl caprylate Isoamyl sulfide... 

Ethyl caprylate Methyl pelargonate Isoamyl sulfide 1,3,5-Triethylbenzene Tridecane... 

Caprylic acid Isoamyl lactate Octyl alcohol... 

Octanoic acid, 2-hydroxypropyl ester. See Propylene glycol caprylate Octanoic acid, isopentyl ester. See Isoamyl octanoate... 

Primary ammonium phosphate. See Ammonium phosphate Primary amyl acetate. See Amyl acetate Primary amyl alcohol. See n-Amyl alcohol Primary decyl alcohol. See Decyl alcohol Primary isoamyl alcohol. See Isoamyl alcohol Primary magnesium phosphate. See Magnesium phosphate monobasic Primary octyl alcohol. See Caprylic alcohol Primary sodium phosphate. See Sodium phosphate... 

Isoamyl caprate Isoamyl crotonate Isoamyl heptanoate Isoamyl lactate Isoamyl valerate Isobutyl methylbutyrate Isopropyl 2-methylbutyrate Isopropyl valerate D-Limonene dimercaptan L-Lysine p-Menthadiene Methyl acetoacetate Methyl acetylaminobenzoate 4-Methylbenzyl acetate Methyl 2-butyl butyrate M ethyl -2-butyl-2-methyl butyrate M ethyl caprate Methyl crotonate 3-Methyl-2-cyclopenten-2-ol-1-one Methyl palmitate Methylparaben Methyl pivalate Methyl undecanoate Phenethyl caprylate Phenethyl crotonate... 

Ethyl ether Ethyl formate Ethyl oleate Formamide Formic acid Glycerin Glyceryl caprylate/caprate Glyceryl formal Heptane 2-Hexanone Hexylene glycol Hybrid safflower (Carthamus tinctorius) oil Isoamyl alcohol Isobutyl acetate Isobutyl alcohol. 

Principal component analysis is another statistical technique that has been applied to the results of profile analysis [55]. Ales and lagers were examined and two-dimensional plots of the results using the first two principal components as axes showed resolution of the ales from the lagers and the close proximity of the majority of duplicate samples. Profile analysis has also been used to differentiate various brands of whisky [56]. Throughout the work on profile analysis hedonic expressions have been strictly excluded but other workers [57] have used principal component analysis to classify Continental European beers correctly as good, average or poor on the basis of nine physicochemical parameters colloidal stability (7 days at 40°C/1 day at 0°C), cold sensitivity (24 hours at 0°C), brightness at 12°C, six months test, the content of p-phenylethanol, ethyl caprylate, isoamyl acetate, and isobutanol and foam stability. 

Another approach has been limited to the correlation of the headspace volatiles with flavour characteristics [30, 58]. Of the substances distinguished on the gas chromatograms the levels of the isoamyl alcohols, ethyl acetate, isoamyl acetate, and isobutanol have been shown to be important in the discriminant analyses discussed above. p-Phenylethanol and ethyl caprylate are not sufficiently volatile to be included in headspace analyses [39]. In this method [30, 58] the peak areas on the chromatograms were expressed as the percentage of the total peak area (excluding ethanol and the internal standard xylene). A chronologically updated data base was used to calculate... 

As described by Lambrechts and Pretorius (2000) and Verstrepen et al. (2003), esters possess a range of odors such as solvent-hke or nail polish (ethyl acetate), fruity, pear, or banana (isoamyl acetate), floral or fruity (ethyl butanoate), sour apple (ethyl caproate and ethyl caprylate), and flowery, roses, or honey (phenyl ethyl acetate). Given the number of different esters present in varying concentrations produced by yeasts, there is little doubt that wine aroma can be strongly influenced by these compounds (Schreier, 1979). 

Isoamyl isovalerate Ethyl caprylate Amyl ether Isoamyl ether Isobornyl methyl ether 1,3,5-Triethylbenzene... 

Dimethyl-4-heptanone Isoamyl butyrate Isoamyl isobutyrate Isobutyl isovalerate Methyl caprylate Naphthalene Butylbenzene... 

Linalool o -Terpineol /8-Terpineol Propyl succinate Citronellol Menthol Capric acid Ethyl caprylate Isoamyl isovalerate n-Decyl alcohol Isoamyl sulfide Isobutyl benzoate Terpineol methyl ether Ethyl pelargonate Isoamyl carbonate 1,3,5-Triethylbenzene Bornyl acetate Bornyl ethyl ether Tridecane... 

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