Method of dynamically preparing special-shaped cavity bacterial cellulose (BC) materials

Method of dynamically preparing special-shaped cavity bacterial cellulose (BC) materials

  • CN 103,146,777 A
  • Filed: 09/02/2010
  • Published: 06/12/2013
  • Est. Priority Date: 09/02/2010
  • Status: Active Application
First Claim
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1. the method for a dynamically preparing heterocavity bacterium cellulose materials comprises:

  • (1) spawn cultureBacteria cellulose is produced bacterial strain access liquid nutrient medium spreads cultivation, in shaking table under 20-30 ℃

    , 100-250r/min condition cultivate or standing cultivation 12 ~ 48h after standby;

    (2) fermentation of special-shaped cavity BC material preparationThe liquid nutrient medium of producing bacterial strain that contains of step (1) preparation is transferred in above-mentioned fermentation unit, and then rotating mold carries out the disturbance cultivation with the rotating speed of 3-20rpm, after 20 ~ 32 ℃

    of dynamic cultivation 4-20 days, can gather in the crops cavity profile fibre cellulosic material;

    (3) material processingThe hollow profile bacteria cellulose material of preparation is taken off from mould, then be soaked in the NaOH solution of 0.5 ~ 2wt%, 70-100 ℃

    of water bath processing 30-120min is white in color bacteria cellulose material and gets final product after translucent, then washing to neutral, namely gets the heteromorphic bacteria cellulose product.

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