从富含聚醇发酵中选择性去除污染物化合物,通过在新吸附材料上进行多元组合吸附
Danielle Garcia Ribeiro Galvão1, Jan Galvão Gomes1, Maria Eduarda Rampin de Almeida1
1Bioprocess and Metabolic Engineering Laboratory (LEMeB), Food Engineering and Technology Department (DETA), Faculty of Food Engineering (FEA), University of Campinas (UNICAMP), R. Monteiro Lobato, 80, Campinas, São Paulo 13083-862, Brazil.
ACS omega
|January 8, 2026
概括
可可豆 (CPH) 杂质被使用吸附剂去除,用于可持续的阿拉比托和西利托生产. 酸活性炭和HPA512L树脂有效地从发酵中净化了多.
科学领域:
- 生物技术和生物工程 生物技术和生物工程
- 可持续化学 可持续化学
- 材料科学 材料科学 材料科学
背景情况:
- 可可豆 (CPH) 是一种丰富的纤维素副产品,可通过发酵制造有价值的糖醇,如阿拉比托和西利托.
- 发酵的CPH含有杂质 (化合物,剩余糖),这些杂质阻碍了聚醇的纯度,需要选择性去除.
- 高效的下游加工对于将CPH提升为高纯度聚合物至关重要.
研究的目的:
- 研究六种不同的吸附剂材料的有效性,以选择性地净化来自CPH的富含聚醇的汁.
- 评估pH值对吸附性能的影响,并确定聚醇净化最佳条件.
- 了解吸附动力学和平衡机制,以进行有效的工艺设计.
主要方法:
- 六种吸附剂进行了选:酸性,基本性和中性活性碳,Sepabeads SP700,Diaion HPA512L和UBK550.
- 吸附实验在pH值范围3-9进行,随后在中性pH值 (7) 进行测试.
- 进行了动力学和异热学研究,将数据相应地与伪二阶和扩展/修改的朗迈尔模型相匹配.
主要成果:
- 酸活性炭和HPA512L树脂表现出极好的澄清能力,保持高度的聚醇.
- 吸附动力学遵循伪二阶模型 (R2 = 0.93-1.00),表明化学吸附.
- 平衡数据最适合扩展和修改的兰迈尔等温体 (R2 > 0.991),表明具有竞争力的聚醇吸附.
- 酸活性炭显示出最高的吸附能力,而HPA512L树脂在更高的温度下显示出优势.
结论:
- 酸活性炭和HPA512L树脂对于从CPH水解物中净化聚合物非常有效.
- 该研究为设计可持续和高效的生物质衍生聚醇下游净化工艺提供了关键数据.
- 这些吸附剂提供了一个可行的解决方案,以提高从农业废物中生产阿拉比托和西利托的经济可行性.
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