methoxyl

A study on the gelling properties of sodium alginate-high methoxyl pectin systems and the effect of pH, gelling temperature and time on them were conducted.

研究了海藻酸钠高甲氧基果胶复合体系的凝胶特性及pH值、凝胶温度和时间对其凝胶特性的影响。

The results indicate that compared with reed lignin, residual lignin in reed kraft pulp had higher contents of oxygen and phenolic and alcoholic hydroxyl groups, lower contents of methoxyl group, residual carbohydrates and total aldehydes after alkaline nitrobenzene oxidation.

研究发现，苇浆残余木素比起芦苇木素具有较高的氢含量和较低的氧含量；较低的甲氧基含量和较高的酚羟基和醇羟基含量；

As a main component of black liquid from papermaking industries adopting alkaline pulping, the high-efficient utilization of alkali lignin focuses on how to improve the chemical reactivity caused by its plentiful methoxyl and few aliphatic hydroxyls.

碱木质素是造纸工业碱法制浆黑液的主要成分，其甲氧基含量较高，醇羟基含量较低，导致化学反应活性低，因此提高其反应活性成为碱木质素高效利用的关键。