通过二维色谱与后列ABTS进行抗氧化剂分析:素的例子
Xuan Tung Do1, René Burger1, Jonas Bergrath1
1Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, Von-Liebig-Straße 20, 53359 Rheinbach, Germany.
International journal of biological macromolecules
|August 6, 2025
概括
作为一种天然抗氧化剂的林宁,在其分子重量分数中表现出多种激素清除活性. 瓜亚科尔表现出高活性,而聚合物宁则表现出高活性.
科学领域:
- 生物化学 生物化学
- 聚合物化学 聚合物化学
- 自然产品 化学 化学
背景情况:
- 红是一种可再生资源,作为化石抗氧化剂的可持续替代品,正在引起人们的注意.
- 了解红素的抗氧化特性对于其在各种行业中的应用至关重要.
- 评估抗氧化活性的传统方法往往缺乏分析复杂的素结构的分辨率.
研究的目的:
- 在分子水平上描述软木的抗氧化活性.
- 为了将特定的分子量分数的素与它们的激素清理能力相关联.
- 为了指导选择最优的抗氧化剂应用的素分数.
主要方法:
- 二维液态色谱 (2D-LC) 结合尺寸排除和逆相色谱.
- 使用2.2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) 进行后列激素清除试验.
- 在单质,寡质和聚合物素分数中对抗氧化剂活性进行分析.
主要成果:
- 在软木中识别了四种瓜亚基尔类型的单化合物.
- 瓜亚科尔在单体中表现出最高的特定激素清除活性;香草素显示出最小的活性.
- 在寡合和聚合物分量中观察到抗氧化活性,在低分子量聚合物宁中具有更高的特异活性.
结论:
- 这项研究提供了细致的结构-性质关系的林格宁的抗氧化活性.
- 2D-LC与激素扫除试验相结合,与散装方法相比,提供了更高的分辨率.
- 这些发现有助于针对性地选择用于增强抗氧化剂应用的红素分离物.
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