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大米的多步预处理,以分成包括在内的组件
Shinnosuke Ishida1, Shinji Kudo1,2, Shusaku Asano1,2
1Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Japan.
Frontiers in chemistry
|February 7, 2025
概括
这项研究提出了一种新的多步预处理大米,有效地分离半纤维素,素和二氧化. 这一过程使农业废弃物能够被全面利用为有价值的化学品.
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.
- 可持续的材料 可持续的材料
背景情况:
- 米是丰富的纤维素生物质,富含二氧化.
- 目前的应用有限,大部分大米被焚烧.
- 为了全面的价值化,需要有效的分成.
研究的目的:
- 开发一种新的多步预处理流程,用于大米.
- 为了有效地将大米碎成其核心成分 (半纤维素,素,,纤维素).
- 为了使大米皮成分的综合价值化.
主要方法:
- 用于半纤维素提取的热水处理.
- 用乙醇/水进行有机溶液处理,以提取红素.
- 性处理以恢复二氧化作为酸盐.
- 在氧气下进行性热水处理,用于高纯度纤维素回收.
主要成果:
- 对于半纤维素,素和二氧化的分离率超过97%.
- 高纯度纤维素回收,损耗22.8%的重量.
- 提取的成分的产量:66.5重量%的半纤维素,78.1重量%的有机溶性素和77.5重量%的.
结论:
- 开发的工艺提供了一种高效和可持续的方法来分离米.
- 避免使用酸,使用可再生溶剂,减少对环境的影响.
- 能够使大米的综合价值化成为有价值的有机和无机化学品.
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