Characterization of a strain of Candida tropicalis thermophilic used in bio-processing of slaughterhouse waste

In order to improve the transformation process of green waste of slaughter-houses in presence of molasses into an ingredient fertilizing the ground and as supplement in animal feeds, performing yeast strains were searched to be used in a mixed leaven with lactic bacteria. Ten yeast stocks with strong sucrolytic and acidifying activities were isolated starting from sugar cane press juice of the production line and from molasses from a sugar factory. LH7 stock was retained for its tolerance to temperature, which increases considerably during fermentation. It corresponded to Candida tropicalis, which presented under optimal conditions (pH 5, 3 g/l sucrose, 1 g/l (NH4)2SO4 and 40°C) an enzymatic activity of 5720 UI/l.