聚氨酸酸的生产来自树树树皮的酶化水解酸
Thomas Rodrigues1,2, Cristiana A V Torres1,2, Susana Marques3
1Associate Laboratory i4HB, Institute for Health and Bioeconomy, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal.
Materials (Basel, Switzerland)
|April 27, 2024
概括
树树皮是一种可持续的原料,用于生产可生物降解的多酸酸盐 (PHAs). 这项研究证明了其从林业废物中产生成本效益高的生物聚合物生产的潜力.
科学领域:
- 生物技术是生物技术.
- 聚合物科学 聚合物科学
- 可持续材料 可持续材料
背景情况:
- 聚酸酸 (PHAs) 是可生物降解的聚合物,有可能取代化石塑料.
- 与种植媒介相关的高生产成本阻碍了PHA的广泛采用.
- 球树的残留物代表了丰富,低成本和可持续的碳来源.
研究的目的:
- 评估树树皮水解剂作为细菌PHA生产的唯一碳来源.
- 探索林业废弃物在生物塑料循环生物经济中的潜力.
- 为了评估使用这种新型原料的不同细菌菌株的PHA生产.
主要方法:
- 使用Cellic® CTec3进行树皮的酶式糖化,以获得富含糖的水解剂.
- 在生物反应器中培养细菌,使用树皮的水解酸作为唯一的碳来源.
- 细菌生长速度和PHA组成 (例如mcl-PHA,PHB) 的分析.
主要成果:
- 几种细菌菌株,包括*Pseudomonas citronellolis*和*Burkholderia thailandensis*,使用树水解剂生产PHA.
- * 伪虫 (Pseudomonas citronellolis) * 呈现出高生长率,但mcl-PHA积累率较低.
- 泰国虫 (Burkholderia thailandensis) 和一个伪虫 (Pseudomonas) 种类. 隔离物获得了更高的PHA积累,后者在限下达到31%的PHB.
结论:
- 树树皮的酶化水解酸是PHA生产的可行的原料.
- 这种方法提供了从林业废物获得生物塑料的可持续途径.
- 进一步的研究可以优化成本高效和高产量的PHA合成条件.
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