The determination of products (isoamyl acetate, ethyl acetate,
2-methyl-1-butanol (active amyl alcohol) and 3-methyl-1-butanol
(isoamyl alcohol)) was carried out by direct injection of 1 lL sam-
ples into a gas chromatograph, Shimadzu GC-14B model (Kyoto, Ja-
pan) equipped with a split injector and a flame ionization detector
as described by Erten and Campbell (2001).