The ethanol concentration was determined by gas chromatography (GC) on
a PerkinElmer autosystem XL Headspace using a FID detector and a column HPMS 30 m. The GC program was: 50◦C for 3 min; 10◦C/min, 100◦C for 1 min;
25◦C/min, 125◦C for 1 min; the injector and detector temperatures were 200 and
300◦C, respectively. Ethanol quantification was performed using a calibration curve
between 0.1% and 3.4%, v/v of ethano