Production of unicelular protein and reduction of contaminating amount of vinasse

The vinasse from ethanol distillery, which is a highly contaminating industrial waste, produced in large quantities. Through biotechnology, it can be used for the production of protein while reducing contamination. Candida utilis strain was isolated and adapted under different concentrations aqueous formulas vinasse, 10 to 50%. experimental trials were carried out lab using “batch” reactor with vinasse. growth microorganism monitored carbon dioxide sensor (CO2). parameters measured were: total nitrogen, COD (chemical demand oxygen), pH conductivity, at beginning end each trial. Every two hours, DO (optics density liquid environment) objective knowing its cellular concentration. For physic- chemical variable analyzed, an ANOVA realized evaluate factors repetition, treatment reactor, chosen significance level 1%. reported: nitrogen there enrichment 136% environment composed 50% formulas; average removal oxygen 43%; variation pH, compared trials, 4% less than beginning; conductivity lessened 9%. monitoring yeast by measuring throughout time environment’s OD, allowed creation curve microorganism, fermentation period 21 hours. It proved that develop batch solutions 50%, producing proteic as well COD. proposed process reduces contamination main effluent Tucumán