Effect on the enzymatic hydrolysis of lipids from dairy wastewater by replacing Gum Arabic emulsifier for sodium chloride

The objective of this work was to evaluate the replacement of Gum Arabic for sodium chloride to reduce fat and organic contents in dairy wastewater using two low cost commercially available lipase preparations from animal source (Kin Master - LKM and Nuclear- LNU). The best performance was achieved when lipase Nuclear (LNU) was used as catalyst. In addition, this lipase preparation has also lower cost, which makes its use a quite promising technique for reduction of suspended solids as proteins and lipids contents found in wastewater generated by dairy industries.O objetivo deste trabalho foi verificar o efeito do cloreto de sódio em substituição à goma arábica, na redução do teor de lipídeos presentes em efluentes de laticínios empregando duas preparações de lipases pancreáticas adquiridas no mercado nacional (Kin Master - LKM e Nuclear- LNU). A preparação enzimática LNU foi mais eficiente na redução de proteínas e lipídeos, mostrando ser uma alternativa promissora para uso no pré-tratamento de águas residuárias com elevado teor desses compostos.