云杉中含有大量的聚O-乙酰基葡糖甘露糖。部分葡糖甘露聚糖在机械制浆中溶出,同时由于白水系统的封闭循环,导致葡糖甘露聚糖不断积累。在机械制浆及抄纸中,葡糖甘露聚糖起着很多作用。在碱性过氧化氢漂白过程中,葡糖甘露聚糖通 Spruce contains a lot of poly-O-acetylglucosaminyl. Part of the glucomannan is eluted in the mechanical pulping, and at the same time, the glucomannan is continuously accumulated due to the closed circulation of the white water system. In mechanical pulping and papermaking, glucomannan plays a number of roles. In the alkaline hydrogen peroxide bleaching process, glucomannan pass