1995 "Ethyl Anthranilate, Ethyl Cinnamate
, 2,3-Dihydrocinnamate, and MethylAnthranilate: Four Important Odorants Identified in Pinot noir Wines of Burgundy." Am.
Cinnamic acid, alphapinene, ethyl cinnamate
and vanillin are just some that have been isolated.
methyl butanoate, ethyl butanoate, ethyl pentanoate, ethyl 2-methyl butanoate, ethyl hexanoate, hexyl 3-methyl butanoate, 3-methylbutyl acetate, and ethyl cinnamate. Carbonyl, alcohol or aromatic compounds were e.g.
In contrast to this, the persistence of the following odorants, methyl butanoate, ethyl butanoate, ethyl 2-methylbutanoate, ethyl hexanoate, methional, hexyl 3-methylbutanoate, 3-methylbutyl acetate, [beta]-damascenone, 2-methoxyphenol, 2-ethyl-4-hydroxy-5-methyl-3(2H)-furanone and ethyl cinnamate was reduced.
The gas chromatogram showed that the common compound in the active fractions obtained from the bioassay-guided fractionation of the C[H.sub.2][Cl.sub.2] extract was ethyl cinnamate. This vasorelaxant active compound, ethyl cinnamate, was isolated as a colorless oil.
Keywords: Kaempferia galanga L.; Ethyl cinnamate; Bioassay-guided isolation; Gas chromatography analysis.
Ethyl cinnamate ([R.sub.f] = 0.55), the bioactive component, was obtained from fractions 14, 15 and 16.
Table 1: Constituents of Kaempferia Galanga Extracts Solaboost-SPF trans-Ethyl p-methoxycinnamate 99.89% Ethyl cinnamate n-Pentadecane 1,8 Cineole [gamma]-Car-3-ene Borneol [alpha]-Pinene Marginatol (15-isopimaradiene-6 alpha-ol) 15-Sanderacopimaradiene-1 alpha, 9 alpha-diol 15-Sanderacopimaradiene-1 alpha, 6 beta, 9 alpha-triol Germacrone Table 2: Solaboost-SPF Enhances a 2% Titanium Dioxide Sunscreen Formula Panelist 1 2 3 4 5 SPF >3.1 >2.6 >3.1 >3.1 4.0 Panelist 6 7 8 9 10 SPF 4.0 3.2 5.0 6.2 4.0 Table 3: Solaboost-SPF Enhances a 2% Ethylhexyl Methoxycinnamate Sunscreen Formula Panelist 1 2 3 4 5 SPF >6.3 >5.0 >5.0 >6.2 6.0 Panelist 6 7 8 9 10 SPF 7.5 4.8 7.5 7.5 6.0
Othman et al., Vasorelaxant Effects of Ethyl Cinnamate Isolated from Kaempferia galanga on Smooth Muscles of the Rat Aorta, Planta Med, 68, 655-7 (2002).
Only esters butyl acetate and 2-ethyl hexanoate were not identified in HS-SPME; however, benzyl acetate, ethyl 3-octenoate, hexyl pentanoate, 1-pentyl-2-propenyl butanoate, 4-oxocyclohexyl acetate, and ethyl decanoate ethyl cinnamate
were not identified in the S-HSprocedure.
For Greg La Follette and other Pinot Noir producers, higher concentrations of four esters (ethyl anthranilate, ethyl cinnamate
, 2,3-dihydro cinnamate and methyl anthranilate) can enhance the variety's characteristic blackberry, black currant, cherry, plum, raspberry and strawberry flavors.