微晶纤维素，主要成分为以β-1,4-葡萄糖苷键结合的直链式多糖类物质   ，是天然纤维素经稀酸水解至极限聚合度（LODP）的可自由流动的极细微的短棒状或粉末状多孔状颗粒，组成的白色、无臭、无味的结晶粉末。

The main component of micro celluloseis a straight-chain polysaccharide bonded by β-1,4-glucosidic bond. It is a white, odorless, tasteless crystalline powder, composed of free-flowing, extremely fine, short rod-like or powder-like porous particles. 

It is made from natural cellulose hydrolyzed by dilute acid to the limit of polymerization degree (LODP).