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South African Journal of Chemistry

versão On-line ISSN 1996-840X

Resumo

MAPITSE, Renameditswe; OKATCH, Harriet  e  MOSHOESHOE, Eniah. Analysis of Volatile Compounds in Khadi (an Unrecorded Alcohol Beverage) from Botswana by Gas Chromatography-Flame Ionization Detection (GC-FID). S.Afr.j.chem. (Online) [online]. 2014, vol.67, pp. 0-0. ISSN 1996-840X.

Chemical analysis of volatile compounds from khadi, an unrecorded alcoholic beverage from Botswana, was carried out using gas chromatography-flame ionization detection (GC-FID). Ten samples of khadi from two different locations were analyzed. All samples had pH values in the range of 2.87-3.16. Overall the samples contained ethanol, higher alcohols and esters. Ethanol was observed to be the dominant volatile compound with concentrations ranging from 1.66-5.71 % vol. Other volatiles determined were 2-methyl-1-propanol (9.12-29.0 mg L-1) and 2/3-methyl-1-butanol (14.5-124.7 mg L-1), ethyl lactate (27.4-110.9 mg L-1) and ethyl acetate (28.3-48.5 mg L-1).

Palavras-chave : Unrecorded alcohols; volatiles; ethanol; gas chromatography.

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