CLEMENTZ Adriana Laura
Sustainable fermentation processing of two revalorized agro-industrial discards: carrot and brewer's yeast
AIMARETTI NORA; CLEMENTZ ADRIANA; CODEVILLA AGUSTÍN; ROJAS M L; YORI JUAN CARLOS
International Journal of Energy and Environmental Engineering
Springer Berlin Heidelberg
Año: 2013 vol. 4 p. 24 - 31
An integrated and sustainable fermentation process wasdeveloped which enabled both the revalorization of two regional agroindustrialdiscards as well as by-product reuse. Carrot and brewer´syeast, which are commonly used for animal feed, were processed to obtain77.5 L of ethanol, 450 kg of solid waste called bagasse, 970 L of liquideffluent called vinasse and 39.8 kg CO2, per each ton of discardedcarrot. The results showed that the bagasse obtained was suitable forfeeding 55 animals (calfs). The dilution of vinasse with fresh water(1:5) satisfied the requirements necessary to be used as beverage for thesame number of animals, leaving a remnant which could be newly diluted1:5 and used to irrigate a 0.025 ha carrot crop, land dimension requiredto grow 1 ton of carrot.