The result indicated that the different nitrogen element has the different influence on apocynum venetum degumming,the remnant pectin rate is 14.

• 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%25；以硝酸盐作为含氮添加剂残胶率为15%25。