The aim of this study was to develop methodologies obtain fish protein concentrates from tambacu filleting residues, characterize their physical-chemical composition and evaluate sensory profile. Concentrates were prepared by one three methodologies: cooking the raw material subsequent drying (FPC1); cooking, drying, lipid removal with ethanol at 70 °C final (FPC2); washing steps (FPC3). FPC2 h...

A biotrickling filter inoculated with commercial mixed microorganisms B350 was employed to treat N-containing odorous vapor - aniline. Results indicated no aniline could be detected when empty bed residence time (EBRT) was larger than 110s at inlet concentration of 0.30 g m(-3). The variation of inlet concentration did not change removal efficiencies when concentration is less than 0.21 g m(-3)...

There is now a trend in the hotel business to use ozonegenerating equipment daily to remove tobacco and body odor from guest rooms, relying on the effects of sterilization, deodorization, and bleaching by ozone. Ozone can deodorize every corner of a room because it is a gas. Moreover, since it decomposes to oxygen after use, it has been thought to be comparatively safe but, the strong oxidizati...