Research Status of Acid Extraction Process of Xylose

Xylose, a pentose, exists in the hemicellulose of plants in the form of xylan which is a kind of pentosan. Currently, acid hydrolysis is the main method for production of xylose. This paper discusses the research status of acid hydrolysis technology from the points of raw material, catalyst, pretreatment, hydrolysis condition, purifi cation technology and crystallization process.