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从甘包生产碳氧甲基纤维素:生物炼油厂概念的新方法

Camila Florencio¹, Mariana G Brondi², Maycon Jhony Silva³

¹National Nanotechnology Laboratory for Agribusiness (LNNA), Embrapa Instrumentation, 13560206 São Carlos, SP, Brazil.

International journal of biological macromolecules

|October 29, 2024

概括

甘包油被转化为碳氧甲基纤维素 (CMCb) 用于微生物封装. 这种可持续的CMCb的性能与商业版本相提并论,展示了生物炼油厂的潜力.

科学领域:

生物质价值化生物质价值化
绿色化学是一种绿色化学.
聚糖的修饰是多糖的修饰.

背景情况:

碳氧甲基纤维素 (CMC) 的生产是商业性的,但很少使用农业工业残留物.
探索CMC的可持续来源对于成本效益和环境影响至关重要.
甘包是一种未充分利用的纤维素原料.

研究的目的:

在生物炼油框架内,从甘包 (CMCb) 中合成碳酸甲基纤维素.
评估CMCb在高价值应用中的性能和适用性.
建立一个可持续的路线,从废物中生产多糖.

主要方法:

通过顺序去除半纤维素和素,从甘包中分离纤维素.
使用氧化 (NaOH) 和单乙酸 (MCA) 制造纤维素的化学修饰,以产生CMCb.
描述CMCb的特性,包括取代度,纯度和结晶度.
评估CMCb对微生物封装和随时间推移的生存能力的有效性.

主要成果:

从甘包中成功合成CMCb,其替代度为0.44,纯度为71.3%,结晶度为32%.
在微生物封装方面,CMCb表现出足够的性能,维持了5个月的可活性.
基于残留物的CMCb表现出与高纯度商业CMC相比的性能.

结论:

甘包油可以有效地转化为功能性碳氧甲基纤维素.
这一过程提供了一种可持续且潜在的成本效益高的途径,可以从农业工业废物中生产有价值的多糖.
开发的CMCb适用于高价值的应用,如生物剂封装,在包装和涂料中具有潜在的用途.

关键词:

农业工业残留物农业工业残留物生物炼油厂是一个生物炼油厂.碳甲基纤维素的碳甲基纤维素.自然聚合物是一种天然的聚合物.甘的包装糖是甘的包装.

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