Grape-based brandies are one of the most popular alcoholic beverages in world. The one, Cognac, comes from Charentes region Southwest France, and it is mostly produced grape variety ‘Ugni Blanc’. However, wines destined for elaboration wine spirits also come different white varieties; ‘Colombard’, ‘Folle Blanche’, ‘Montils’, ‘Semillon’. In this study, possibility using red varieties ‘Cabernet S...

Ultrasonic velocity (u), density (ρ), and viscosity (η) measurements have been taken in six binary liquid mixtures ethyl acetate + methanol, ethanol, propanol, butanol, hexanol octanol at 303.15 K over the entire mole fraction range. The experimental data has used to calculate free volume, internal pressure their excess values. Excess values of volume〖(V〗_f^E) (p_i^E) were plotted against whole...

The biotechnological production of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) derived from organic waste streams by mixed microbial communities is well established at the pilot-level. However, there limited research on recovery biopolymer biomass, while its impact product quality and costs major. When applying solvent extraction, choice has a profound influence many aspects process des...