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来自酸热分离的生物活性素:揭示结构-生物活性关系

Chen Su¹, Xiu Wang², Kolby Hirth³

¹Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China; Jiangsu Co-innovation Center for Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab Pulp & Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China; USDA Forest Products Laboratory, Madison, WI 53726, United States.

International journal of biological macromolecules

|February 1, 2025

概括

草本生物质的酸热分化 (MAHF) 产生具有强大的抗氧化,抗菌和紫外线阻断特性的红素. 较高的氧化和氧化含量与增强的生物活性相关,这表明素.

科学领域:

生物质的价值化生物质的价值化
聚合物化学聚合物化学
生物化学生物化学

背景情况:

灵是一种复杂的生物聚合物,表现出由其结构影响的多种生物活性.
了解结构-生物活性关系是释放红素潜力的关键.
草生生物质为提取木质素提供了一个可持续的来源.

研究的目的:

为了研究由酸水分化 (MAHF) 衍生出来的红素的结构-生物活性关系.
评估MAHF木质素 (MAHL) 的抗氧化,抗菌和紫外线阻断特性.
为了将MAHL的特定结构特征与其观察到的生物活性联系起来.

主要方法:

草生生物质的酸热水分化 (MAHF).
素结构的表征,包括基,基,基,基单位,分子量 (Mw) 和多分散度指数 (PDI).
对抗氧化活性 (DPPH清除),抗菌功效 (对大肠杆菌和金黄色杆菌) 和紫外线阻断能力的测定.

主要成果:

含有较高的酸 (高达2.0mmol/g) 和酸 (高达0.89mmol/g) 含量的MAHL显示出增强的抗氧化活性 (98%的DPPH清除).
在10毫克/毫升的MAHL中,显著的抗菌抑制率 (66%对抗大肠杆菌,54%对抗金黄色杆菌) 呈现出显著的抗菌抑制率 (10毫克/毫升).
马哈尔显示出优异的紫外线阻断能力 (>98%在1毫克/毫升).
含有较高的基,基,基单元和合双键的含量与提高的生物活性相关.
较低的木质素Mw和PDI与更好的生物活性有关.

结论:

MAHF是一种有效的方法,用于从草生生物质中生产生物活性木质素.
氨酸的物理化学结构,特别是功能组和分子特征,决定了它的生物活性.
作为一种具有成本效益的可再生生物聚合物添加剂,MAHL对各种工业应用具有前景.

关键词:

抗菌剂抗菌剂抗菌剂抗氧化剂是一种抗氧化剂.在Lignin的基础上.酸热水分化 Maleic酸热水分化物理化学结构的物理化学结构.阻紫外线的方法

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