Bacterial cellulose fermentation medium and method for producing bacterial cellulose by utilizing medium
A technology of bacterial cellulose and fermentation medium, applied in the biological field, can solve the problems of low output and yield and high cost of bacterial cellulose medium, achieve the effects of increasing added value, saving preparation costs and solving environmental pollution
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Embodiment 1
[0023] The bacterial strain described in the present invention: Gluconacetobacter xylinus, purchased from China Agricultural Microorganism Culture Collection and Management Center, strain number accc10215.
[0024] A method for producing bacterial cellulose, comprising the steps of:
[0025] (1) Activation of Gluconacetobacter xylosus
[0026] Prepare gluconacetobacter xylosus activation medium, the formula of activation medium includes sucrose 40g / L, beef extract 10g / L, disodium hydrogen phosphate 4g / L, citric acid 0.8g / L, ethanol 8g / L, agar 15g / L, adjust the pH value to 5.5. Inoculate Gluconacetobacter xylosus accc10215 in the activation medium, culture at 28°C for 28 hours, inoculate the cultured bacteria again in the same, new activation medium, and cultivate at 28°C for 28 hours to obtain activated wood Gluconacetobacter sucrose;
[0027] (2) Expansion of Gluconacetobacter xylosus
[0028] Prepare gluconacetobacter xylosus expansion culture medium, the formula of expa...
Embodiment 2
[0037] A method for producing bacterial cellulose, comprising the steps of:
[0038] (1) Activation of Gluconacetobacter xylosus
[0039] Prepare gluconacetobacter xylosus activation medium, the formula of activation medium comprises sucrose 45g / L, beef extract 13g / L, disodium hydrogen phosphate 4.5g / L, citric acid 0.9g / L, ethanol 9g / L, Agar 17g / L, adjust the pH value to 6.0. Inoculate Gluconacetobacter xylosus accc10215 in the activation medium, culture at 28°C for 28 hours, re-inoculate the cultivated strains in the same, new activation medium, and cultivate at 28°C for 28 hours to obtain activated wood Gluconacetobacter sucrose;
[0040](2) Expansion of Gluconacetobacter xylosus
[0041] Prepare gluconacetobacter xylosus expansion culture medium, the formula of expansion culture medium comprises sucrose 45g / L, beef extract 13g / L, disodium hydrogen phosphate 4.5g / L, citric acid 0.9g / L, ethanol 9g / L L, adjusting the pH value to 6.0, inoculating activated Gluconacetobacter...
Embodiment 3
[0050] A method for producing bacterial cellulose, comprising the steps of:
[0051] (1) Activation of Gluconacetobacter xylosus
[0052] Prepare Gluconacetobacter xylosus activation medium, the formula of activation medium includes sucrose 50g / L, beef extract 15g / L, disodium hydrogen phosphate 5g / L, citric acid 1.0g / L, ethanol 10g / L, agar 20g / L, adjust the pH value to 6.5. Inoculate Gluconoacetobacter xylosus accc10215 in the activation medium, culture at 32°C for 32 hours, inoculate the cultured bacteria again in the same, new activation medium, and cultivate at 32°C for 32 hours to obtain activated wood Gluconacetobacter sucrose;
[0053] (2) Expansion of Gluconacetobacter xylosus
[0054] Prepare gluconacetobacter xylosus expansion culture medium, the formula of expansion culture medium includes sucrose 50g / L, beef extract 15g / L, disodium hydrogen phosphate 5g / L, citric acid 1.0g / L, ethanol 10g / L , adjust the pH value to 6.5, inoculate the activated gluconacetobacter x...
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