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阿魏酸是植物界中最主要的羟基肉桂酸,是细胞壁结构的重要组成部分。由于具有高抗氧化性,阿魏酸在医药、食品、化妆品、保健品等领域具有广阔的开发和应用前景。在禾本科植物木质素与碳水化合物的交联结构中,除木质素与碳水化合物的直接交联外,与碳水化合物发生酯化的阿魏酸还与木质素发生交联,形成碳水化合物-阿魏酸酯-木质素交联结构,该结构是限制反刍动物对禾本科植物的消化吸收和生物质转化为生物能源的主要障碍之一。研究碳水化合物-阿魏酸酯-木质素交联结构及其形成机理,对植物原料中阿魏酸的分离利用和易降解转基因植物的培育均具有重要的指导意义,有助于木质纤维生物质资源的高效利用。本文综述了阿魏酸酯与木质素和碳水化合物交联结构类型及其交联机理的研究进展。
Ferulic acid is the most important hydroxycinnamic acid in the plant kingdom and is an important part of the cell wall structure. Due to its high oxidation resistance, ferulic acid has broad prospects for development and application in the fields of medicine, food, cosmetics and health products. In the gramineous plant lignin and carbohydrate cross-linked structure, in addition to the direct cross-linking of lignin and carbohydrates, the esterification of carbohydrates and ferulic acid also occurs with the lignin cross-linked to form carbohydrates - A This structure is one of the main obstacles that limit the digestion and absorption of gramineous plants and the conversion of biomass into bio-energy by ruminants. Studies on the carbohydrate-ferulate-lignin cross-linked structure and its formation mechanism have important guiding significance for the separation and utilization of ferulic acid and the cultivation of easily degradable transgenic plants in plant raw materials, and contribute to the development of lignocellulosic biomass Efficient use of resources. This review summarizes the research progress on the types of cross-linked structures of ferulic acid esters with lignin and carbohydrates and their crosslinking mechanism.