High-activity phytase compositions

   
   

A process is disclosed for preparing aqueous phytase-containing liquids involving culturing microorganisms of the genus Aspergillus or Trichoderma in a medium containing assimilable carbon and nitrogen sources (e.g., glucose and ammonium ions), filtering the medium, and subjecting the resulting filtrate to ultra-filtration to give an aqueous composition having at least 14,000 FTU/g. This aqueous liquid optimally can be used to prepare granulates that can be incorporated in animal feedstuffs.

Um processo é divulgado preparando os líquidos phytase-contendo aqueous que envolvem cultivando os microorganisms do genus aspergilo ou Trichoderma em um meio que contem fontes assimilable do carbono e do nitrogênio (íons por exemplo, do glucose e do ammonium), filtrando o meio, e sujeitando o filtrate resultante ao ultra-filtration para dar uma composição aqueous que tem ao menos 14.000 FTU/g. Este líquido aqueous optimally pode ser usado preparar-se granulates que pode ser incorporado nos feedstuffs animais.

 
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