Abstract
By means of gas-liquid-chromatography the neutral volatile products obtained by stripping oxidized soybean oil were fractionated.
The fraction with “green bean” odor (a well-known offflavor of soybean oil) was investigated. By the application of various methods it was possible to isolate the flavor carrier proper and, in spite of its small amount, to complete the analysis to a point at which the structure 3-cis-hexenal seemed highly probable. Synthesis and subsequent comparison with the natural product confirmed the correctness of the assumption.
n-Hexanal and 3-trans-hexenal, also found in this fraction, play no significant role in the reversion flavor.
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Hoffmann, G. 3-cis-hexenal, the “Green” reversion flavor of soybean oil. J Am Oil Chem Soc 38, 1–3 (1961). https://doi.org/10.1007/BF02633107
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DOI: https://doi.org/10.1007/BF02633107