使用Rohodococcus quinshengii LS18生产聚氨酸的羽的价值化以及用提取的聚合物及其混合物进行的生物降解研究
Shareen Fatima Rizvi1, Syed Khalida Izhar1, Aamina Shahab1
1Department of Biosciences, Integral University, Lucknow, Uttar Pradesh, India.
Biodegradation
|January 31, 2025
概括
罗多科克 (Rhodococcus qingshengii) LS18有效地从羽毛中产生多基酸盐 (PHAs). 将PHA与凝和蛋粉末的优化混合物显示出增强的机械性能和快速的生物降解,以实现可持续的包装.
科学领域:
- 生物技术是生物技术.
- 聚合物科学 聚合物科学
- 环境科学 环境科学
背景情况:
- 塑料污染是一个重大的全球性挑战.
- 聚酸酸 (PHAs) 为传统塑料提供一种可生物降解的替代品.
- 从废物中有效地生产PHA的微生物对可持续性至关重要.
研究的目的:
- 用动物废物识别和优化用于PHA生产的细菌菌株.
- 为了描述产生的PHA及其混合物.
- 为了评估潜在的包装应用,PHA混合物的生物降解率.
主要方法:
- 从土壤中分离和选产生PHA的细菌.
- 使用使用羽作为基质的统计方法优化PHA生产.
- 使用NMR,FTIR,XRD,GCMS,DSC和TGA进行PHA的表征.
- 制备和机械测试PHA混合物与凝和蛋粉.
- 土壤埋葬实验,以评估生物降解率.
主要成果:
- 鉴定出Rhodococcus qingshengii LS18是一种高PHA生产剂 (2.16g/L).
- 优化用于PHA生产的羽,产生比OFAT多2.6倍的PHA.
- PHA的化温度为176.63°C,并在300°C左右解体.
- PHA混合物 (2:1:1 PHA:凝:ESP) 在破裂时显示出94%的延伸和9.81 MPa的抗拉强度.
- 在60天内,PHA混合物的生物降解率在土壤中达到94%.
结论:
- R. qingshengii LS18 是一个有前途的PHA生产商,利用羽.
- 优化的PHA混合物表现出改进的机械性能和快速生物降解.
- 这些PHA混合物适用于可持续包装应用.
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