Property	Analytical method
Total Titratable Acidity	Titratable acidity was determined by titrating a known amount of aqueous extract of the sample against an alkali solution of known normality using phenolphthalein as an indicator [9] . It is expressed as an equivalence of any organic acids, e.g. citric acid, or malic acid.
pH	The pH was determined using an automatic pH meter by dipping the hydrogen electrode into the sample at room temperature [9] .
Total soluble sugars and Specific gravity	Total soluble sugars (TSS) were measured in Brix using a hand refractometer [10] .
Total reducing sugars	The total reducing sugars were determined using Lane and Eynon’s method which is based on the principle of reduction of Fehling’s solution by reducing sugars.
Ethanol concentration	The concentration of ethanol present in the bioethanol (ethanol and water) was determined by volumetric analysis using acidified potassium permanganate [11] .
Density	Density was doing using the volumetric method [12] . An empty 50 ml conical flask was weighed and the weight was recorded. The weighed conical was filled with 30 ml of the sample (ethanol) and the weight of both the flask and ethanol was recorded. The density of ethanol was then calculated using the following formula: Density (g/mL) = mass/volume