不同含氮添加剂对罗布麻生物脱胶效果的影响

Influence of different nitrogen additives on the biological degumming result of the apocynum

从微生物的组成、生长及繁殖等方面阐述了氮是微生物生命活动所必需的元素。以铵盐和硝酸盐作为含氮添加剂进行脱胶试验。结果表明,不同化合价的氮元素对罗布麻生物脱胶具有不同的影响,以铵盐作为含氮添加剂残胶率为14.1%,以硝酸盐作为含氮添加剂残胶率为15%。利用半反应方程从理论上论证了不同价态的含氮添加剂对罗布麻生物脱胶效果的影响是不同的。试验和理论都表明,以铵盐作为含氮添加剂的脱胶效果要好于以硝酸盐作为含氮添加剂的脱胶效果。

From microorganism＇s composition, growth and reproduction and so on it is elaborated that the nitrogen was the essential element to microorganism vital activity. Dcgumming experiment was carried out with the ammonium salt and the nitrate as the nitrogen additive. The result indicated that the different nitrogen element has the different influence on apocynum venetum degumming, the remnant pectin rate is 14.1% with ammonium salt as nitrogen additive, 15% with the nitrate. It demonstrates that the impact on degumming of apocynum venetum is different with different nitrogen additive through using the half response equation. The experiment and theory all indicates that the effect of ammonium salt as the degumming nitrogen additive is better than the effect of nitrate as the degumming nitrogen additive.