一种基于纤维素和粉的多功能复合水凝,含有铁改性生物炭颗粒,用于增强微藻生长
Bahare Salehi1, Bo Zhang2, Kyle Nowlin1
1Joint School of Nanoscience and Nanoengineering, North Carolina Agricultural and Technical State University, Greensboro, NC, USA.
Carbohydrate polymers
|January 3, 2024
概括
这项研究开发了一种来自可再生资源的新型多糖化水凝,以促进微藻种植. 在最佳度下,水凝显著提高了藻类产量和细胞密度,证明了其作为可持续增长增强剂的潜力.
科学领域:
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 微藻种植对于生物燃料和生物产品至关重要.
- 增强微藻生长需要可持续和有效的添加剂.
- 基于多糖的水凝具有农业和生物技术应用的潜力.
研究的目的:
- 为了制造和表征一种基于多糖的多功能水凝.
- 为了评估水凝在增强微藻生长方面的有效性.
- 为了确定微藻种植的最佳水凝度.
主要方法:
- 使用碳素甲基纤维素 (CMC),箭根粉,铁改性生物炭,氧化糖和甘油的水凝合成.
- 根据膨胀率,BET表面积和电导率优化水凝配方.
- 对微藻生长 (产量和细胞度) 的评估,在Bold基底介质中使用不同的水凝度.
主要成果:
- 最佳的水凝配方是通过特定的粉,CMC,生物炭,氧化糖和糖的比例来确定的.
- 在2.5g/L的水凝度显著增加了65.7%的藻类产量和92.2%的细胞度.
- 较高的水凝度 (12.5 g/L) 导致藻类产量下降67.8%,原因是氧化损伤,并改变了微藻的元素组成.
结论:
- 开发的多糖液凝是增强微藻生长和生物质生产的有希望的添加剂.
- 精心优化水凝的度是必要的,以避免对微藻的负面影响.
- 水凝会影响微藻的营养含量,增加和减少碳,和硫.
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