从酒厂的消耗谷物中分离和结构性表征天然的深度修养溶剂 - - 宁
Karina Antoun1, Malak Tabib1, Sarah Joe Salameh1
1Université de Technologie de Compiègne, ESCOM, TIMR (Integrated Transformations of Renewable Matter), Centre de recherche Royallieu, CS 60 319, 60 203 Compiègne, Cedex, France.
Polymers
|October 16, 2024
概括
酒的花费的谷物 (BSG) 可以使用微波辅助提取与天然的深溶性溶剂 (NaDESs) 用于木素的回收. 胆化-乳酸 (ChCl-LA) NaDES有效提取具有抗氧化特性的高纯度红素.
科学领域:
- 生物质价值化和可持续化学.
- 从纤维素材料中提取高价值化合物.
背景情况:
- 酒的消耗谷物 (BSG) 是丰富的素来源,一种具有抗氧化特性的天然聚合物.
- 传统的木质素提取方法可能是能源密集型和对环境有影响的.
研究的目的:
- 为了研究微波辅助提取使用酸性天然深性溶剂 (NaDESs) 来有效地从BSG中恢复素.
- 评估和优化NaDES配方,以提高素提取产量和质量.
主要方法:
- 对三种酸性NaDES配方的评估,重点是胆化-乳酸 (ChCl-LA).
- 在150°C的微波辅助提取15分钟.
- 对于溶剂的热稳定性进行热重力测量分析 (TGA).
- 福里埃变换红外 (FTIR) 和2D-HSQCNMR光谱用于结构分析.
- 使用IC50测定进行抗氧化活性评估.
主要成果:
- 胆化-乳酸 (ChCl-LA) 显示出优越的热稳定性和溶剂能力.
- 在最佳的提取条件下 (150°C,15分钟,ChCl-LA) 能产生高达79%纯度的红素.
- 提取的红素表现出显著的抗氧化活性 (IC50 ≈ 0.022 mg/L).
- 光谱分析证实了回收的素的结构完整性.
结论:
- 酸性NaDESs,特别是ChCl-LA,与微波辅助提取相结合,提供了一种有效和快速的方法来从BSG中恢复素.
- BSG是一种可行的纤维素资源,用于获得具有宝贵抗氧化特性的高纯度纤维素.
- 这种方法为提升BSG及其组件的价值提供了一个可持续的途径.
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