| 再生纤维素膜的微生物降解 |
| 摘要点击 1741 全文点击 2036 投稿时间：1995-10-08 |
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| 中文关键词 再生纤维素膜 生物降解性 CO2释放 |
| 英文关键词 regenerated cellulose film biodegradability CO2 evolution |
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| 中文摘要 |
| 采用田间掩埋、平皿培养和CO2释放试验分别测试了再生纤维素膜的生物降解性。试验结果表明:膜的失重随掩埋时间延长而增加;不同试验菌株对膜有不同的降解活性,其顺序为木零T-311>黑曲霉A-305>青霉P-307;掩埋或用菌株T-311接种42d后,膜的生物降解率可超过70%;在膜的微生物降解过程中,失重、菌株在膜表面的可见生长和CO2释放分别是膜不同降解程度的表征,彼此既相关又有区别。 |
| 英文摘要 |
| The biodegradability of regenerated cellulose film was tested by soil-burial test in field, culture-dish test and CO2 evolution test respectively. The results of test are as follows:(1) The mass loss of the film increased with the extension of soil-burial test; (2) Test strains had different abilities to degrade the film, and the order of their abilities was strain T-311 >strain A-305 >strain P-307;the biodegradation rate of the film might exceed 70% during 42 days after the film had been buried or inoculated with strain T-311; (4) In the process of biodegradation, mass loss, visible growth of test strains on the film and CO2 evolution are both relative and different indexes for assessing biodegradation degrees of the film. |
