This invention relates to a process for chemically modifying polysaccharides in a densified fluid. In particular, the modification includes esterification and/or etherification of a starch in supercritical carbon dioxide. The process is advantageous in that it allows for a high degree of substitution without the use of organic solvents or repeated reactions.
本发明涉及一种在致密流体中对
多糖进行
化学修饰的工艺。特别是,这种改性包括在超临界
二氧化碳中对淀粉进行酯化和/或醚化。该工艺的优点是可以在不使用有机溶剂或重复反应的情况下进行高度置换。