Fast detection of degradation property for biological degradation materials by utilizing bacteriological hybrid bacterium group
A technology of biodegradable materials and mixed flora, which is applied in the field of biodegradable environmental material degradation performance testing and research, can solve the problems of poor repeatability and long test time, and achieve the effects of accelerated degradation speed, large capacity and good repeatability
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[0020] Example 1.
[0021] Utilizing the mixed bacterial flora for polyhydroxybutyrate valeric acid copolyester (PHB / V), cellulose, polybutylene succinate and polybutylene adipate copolymer (PBSA), polycarbonate The degradation performance of 12 kinds of materials such as PPC and PBS are tested.
[0022] 1. Test equipment
[0023] 1.1 Bioreactor
[0024] In this experiment, a 1-liter triangular flask was used as the bioreactor, and the mouth of the flask was blocked with a rubber stopper. Two holes were left on the rubber stopper, namely the air inlet and the air outlet. No carbon dioxide can leak from the connecting pipe. The bioreactor is placed in a constant temperature water bath device with a magnetic stirring function to ensure a constant temperature during the reaction process and always stir the test solution during the entire reaction process to ensure that the dissolved oxygen in the mineral salt test solution can meet the aerobic degradation of microorganisms Needs.
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