Lignin is an abundant biomass-derived polymer that can be utilized as an antimicrobial agent. However, its antimicrobial properties depend on the method used for its extraction. Amongst the extracted lignin, lignin-based materials including nanomaterials are often favoured due to their unique properties and mode of action in suppressing microbial growth by targeting the cell membrane of bacteria. This lignin is generally obtained through chemical extraction from a variety of natural sources using different methods. However, their extraction methods, in relation to their antibacterial properties, have not been well documented. Here, we present an overview of alternative methods of extracting lignin and their potential influence on antimicrobial properties of the lignin. Shortcomings of the extraction methods as well as potential solutions for process optimisation are also discussed.

木质素是一种丰富的生物质衍生的聚合物，可以用作抗微生物剂。但是，其抗菌性能取决于提取所用的方法。在提取的木质素中，包括纳米材料在内的基于木质素的材料由于其独特的特性和通过靶向细菌的细胞膜抑制微生物生长的作用方式而常常受到青睐。该木质素通常通过使用不同方法从多种天然来源化学提取而获得。但是，关于它们的抗菌性能，其提取方法尚未得到充分证明。在这里，我们概述了提取木质素的替代方法及其对木质素抗菌性能的潜在影响。