Method of bacterial cellulose production using proteus strains

Details Method of bacterial cellulose production using proteus strains Method of bacterial cellulose production using proteus strains

C - Chemistry, Metallurgy

12

N

C12N 1/20 (2006.01) C12P 19/04 (2006.01)

Patent

CA 2630693

Disclosed are a method for producing bacterial cellulose and a bacterial cellulose product produced therefrom. The method comprises culturing a biologically pure cellulose-producing Proteus strain in a liquid medium that is suitable for culturing facultatively anaerobic microorganisms, separating the bacterial cellulose produced from the liquid medium, washing said cellulose followed by drying. The strain is preferably a Proteus myxofaciens strain, preferably IDAC 071005-01 or ATCC 19692. The liquid medium is provided with a carbohydrate substrate containing at least one sugar selected from the group consisting of glucose, sucrose, fructose, lactose, xylose and rhamnose.

L'invention concerne une méthode pour produire de la cellulose bactérienne et un produit en cellulose bactérienne obtenu par cette méthode. Cette méthode consiste à cultiver une culture biologiquement pure d'une souche de proteus produisant de la cellulose, dans un milieu liquide approprié à la culture de micro-organismes facultativement anaérobies; à séparer la cellulose bactérienne produite du milieu liquide; à laver cette cellulose et à la sécher. La souche de proteus est de préférence une souche de proteus myxofaciens, idéalement une souche IDAC 071005-01 ou une souche ATCC 19692. Le milieu liquide de l'invention est associé à un substrat glucidique contenant au moins un glucide sélectionné dans le groupe comprenant: glucose, sucrose, fructose, lactose, xylose et rhamnose.

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