Sugar concentration was measured in ◦Brix by a refractometer
(Alla France). Brix values were converted to grams of sugar, using
Eq. (1) (Bruce, 1995):SCg =SC×SG×10 where, SC was sugar concentration in ◦Brix and SCg represented
sugar concentration in g/L. Specific gravity (SG) under different
◦Brix was obtained from the sucrose conversion table (USDA, 1981)
and 10 was the conversion factor.