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Volatile compounds produced by irradiation of butterfat
Author(s) -
Merritt Charles,
Forss D. A.,
Angelini Pio,
Bazinet M. L.
Publication year - 1967
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02558175
Subject(s) - butterfat , chemistry , organic chemistry , anhydrous , gas chromatography , carbon dioxide , nonanal , mass spectrometry , chromatography , milk fat , linseed oil
Anhydrous butterfat was irradiated at 6 megarads in a special glass reaction flask, and the headspace and total condensate samples were examined by wide‐range (‐180C to 125C) gas chromatography combined with mass spectrometry. The nature and amounts of volatile compounds were not greatly influenced by whether the butterfat was irradiated under oxygen or under vacuum, nor (apart from n ‐alkanoic acids) by storage for 1 and 9 weeks. Carbon dioxide was produced in greatest amount. Of the remaining compounds, aliphatic hydrocarbons predominated both in number and amount. Aliphatic oxygenated compounds including carbonyl compounds were isolated in relatively small amounts. The following compounds were identified positively: C 1‐13 n ‐alkanes; C 4‐9 2‐methylalkanes; C 2‐14 alk‐l‐enes; C 2‐9 alk‐l‐ynes; C 2‐5 n ‐alkanoic acids; C 1‐5 n ‐alkan‐l‐ols and propan‐2‐ol; C 2‐8 n ‐alkanals and 2‐methylbut‐2‐enal; C 3‐5,7 alkan‐2‐ones; C 1‐4 n ‐alkyl formates, vinyl and isoamyl formate, methyl acetate and methyl n ‐hexanoate; and carbon dioxide.

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