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Observations on the use of porous polymers for collecting volatiles from synthetic mixtures reminiscent of fermented ciders
Author(s) -
Williams Anthony A.,
May Helan V.,
Tucknott Owen G.
Publication year - 1978
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740291209
Subject(s) - tenax , chemistry , chromatography , aroma , boiling , boiling point , fermentation , desorption , gas chromatography , organic chemistry , food science , adsorption
Conditions for collecting volatile components on Porapak Q and desorbing them for gas chromatographic examination have been investigated using a synthetic mixture representing the aroma components of cider. Optimum recoveries and least errors were obtained using a piston displacement procedure, 32 mg of Porapak, a temperature of 150°C for 20 min for desorption and ratios of vapour to liquid not exceeding 5:1. Tenax GC gave more consistent results than Porapak Q for non‐polar compounds with boiling points greater than that of hexyl acetate.