PROBIEN   20416
INSTITUTO DE INVESTIGACION Y DESARROLLO EN INGENIERIA DE PROCESOS, BIOTECNOLOGIA Y ENERGIAS ALTERNATIVAS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
CARACTERIZACIÓN DE CULTIVOS MIXTOS CON LEVADURAS NATIVAS DE LA REGIÓN DEL COMAHUE PARA DESARROLLAR VINOS PATAGÓNICOS DE CALIDAD MEJORADA
Autor/es:
MATURANO RAMONA DEL CARMEN; CURILEN YOLANDA L; BRAVO SEBASTIAN M.E; CABALLERO ADRIANA C; DEL MONACO SILVANA M; SIMES ADRIANA B
Reunión:
Congreso; Congreso Internacional de Ciencia y Tecnología de los Alimentos 2016 (CICyTAC 2016); 2016
Resumen:
The North Patagonian region presents favourable agro-ecological conditions for development of a high quality vitiviniculture. Yeasts isolated from this region could be used as starter cultures due to their adaptability to those conditions. Indigenous strains Saccharomyces cerevisiae (F8) and Pichia kudriavzevii (I15) were evaluated as a mixed culture at laboratory and pilot scale (200L, vinifying local Pinot noir y Malbec must varieties, 2014-2016). The musts were inoculated using a co-inoculation strategy. The kinetic and microbiological performance of processes were analysed by classical physicochemical and molecular methods. The wines were characterized using physicochemical (INV methods) and sensorial methods (qualitative analysis and tasting by expert panel) and carrying out preference polls by consumers. The results showed a high fermentative efficiency and consumption capacity of malic acid, lower global acidity and compatible physicochemical characteristics with normal dry wines. Sensorial evaluation determined wines with high global scores, establishing soft and elegant wines with significantly spicier aroma, less alcoholic mouthfeel, greater and significant colour intensity. The use of indigenous starter cultures in elaboration of regional wines with distinctive characteristics defines an expanding tendency in current wine industry, for obtain differentiated products preserving the natural biodiversity of our region.