木质素抑菌性能强化改性方法研究进展
Research progress on modification of antibacterial properties of lignin
王硕 1张健本 2甘心权 1谢彩锋3
作者信息
- 1. 广西大学轻工与食品工程学院,广西南宁 530004
- 2. 广西大学林学院,广西南宁 530004
- 3. 广西大学轻工与食品工程学院,广西南宁 530004;蔗糖产业省部共建协同创新中心,广西南宁 530004
- 折叠
摘要
综述了木质素的结构特征,说明了木质素对革兰氏阳性菌和革兰氏阴性菌的抑菌机理,即酚羟基能促进细胞周围pH值的降低,从而可以破坏细胞膜,使蛋白质变性,抑制微生物细胞的呼吸系统和电子传递酶系统活性,达到抑菌作用,而分子量降低可以提高木质素酚羟基含量,亲水性提高则可有效提高木质素水溶性.结合国内外研究现状,介绍了提高木质素抑菌活性的主要方法:解聚法、分级法、木质素的提取方法和木质素-银络合物法,阐述了不同方法改性木质素如何提高其抑菌活性,并对提高木质素抑菌活性研究进行展望.
Abstract
The structure characteristics of lignin were summarized.The inhibitory mechanism of lignin on Gram-positive and Gram-negative bacteria was described,that is,the phenol hydroxyl group can promote the decrease of pH value around cells,thus destroying cell membranes,denaturating proteins,inhibiting the activity of respiratory system and electron transfer enzyme system of microbial cells,and achieving the inhibitory effect,while the reduction of molecular weight can increase the phenol hydroxyl group content of lignin.The water solubility of lignin can be improved effectively with the increase of hydrophilicity.Based on the research status at home and abroad,the main methods to improve the antibacterial activity of lignin(depolymerization,fractionation,extraction of lignin and lignin-silver complex)were introduced,the methods for improving the antibacterial activity of lignin modified by different methods were discussed,and the prospect of improving the antibacterial activity of lignin was also discussed.
关键词
木质素/抑菌/解聚/分级/提取/络合Key words
lignin/bacteriostasis/depolymerization/fractionation/extraction/complexation引用本文复制引用
基金项目
广西壮族自治区科技重大专项(桂科AA22117014-3)
出版年
2024
NETL
NSTL
万方数据