The pectin in most plants is the high methoxyl pectin, so the low-methoxy pectin has to be prepared by reducing the degree of esterification.
自然界大多数植物中的果胶为高甲氧基果胶，需通过降低其酯化度制备低甲氧基果胶。
Effects of catalyst amount, ratio of reactants, reaction time, reaction temperature and reuse of catalyst on degree of esterification were investigated.
考察了催化剂的用量，反应物的配比、反应时间、反应温度、催化剂重复使用等因素对反应的影响。
This paper studies the natural rosin modification on fortified and esterified. The best fortification and degree of esterification of rosin on second fiber were discussed.
对天然松香进行强化和酯化改性，确定了再生纸浆用的松香的最佳加成量和酯化度。
Major factors that affected the degree of esterification and 1,6-anhydro ring formation were studied to produce the title compound which met the European Pharmacopoeia standard.
研究了影响酯化率与成环率的主要因素，控制合适的酯化、解聚和纯化条件，得到的依诺肝素钠成品符合欧洲药典标准。
Under optimum reaction conditions, esterification degree of para-hydroxybenzoate chitosan ester was 130%, and yield reached 80%.
在适宜的反应条件下，对羟基苯甲酸壳聚糖酯酯化度可达130%、得率80%以上。
Under optimum reaction conditions, esterification degree of para-hydroxybenzoate chitosan ester was 130%, and yield reached 80%.
在适宜的反应条件下，对羟基苯甲酸壳聚糖酯酯化度可达130%、得率80%以上。
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