ISSN:
1750-3841
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Unsaturated aldehydes from lipid oxidation, t-2-hexenal, t-2-heptenal, t, t-2,4-heptadienal and t,t-2,4-decadienal were investigated for structural alteration during dynamic headspace (DHS)-gas chromatographic (GC) analysis. After thermal desorption during which the GC carrier gas, hydrogen, flowed through Tenax TA adsorbent trap, both 2-alkenals and 2,4-alkadienals produced partially and fully hydrogenated compounds as artifacts. The loss due to hydrogenation was most severe with 2,4-decadienal, its recovery being 31.2%. Hydrogenated artifacts were not observed after thermal desorption with helium as the GC carrier gas. It is recommended that helium instead of hydrogen be used as the carrier gas in conducting DHS-GC analysis of unsaturated lipid oxidation compounds.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2621.1993.tb03249.x
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