魔芋葡甘聚糖衍生物在烟草保润中的应用研究

Application of KSAP in moisture retention of tobacco

为开发新型烟草保润剂,以魔芋葡甘聚糖(KGM)、丙二醇和甘油作对照,进行了魔芋葡甘聚糖改性产物(KSAP)在烟丝中的应用效果对比试验。试验结果显示,在T为22+1℃,RH为(40+2)%时,KSAP溶液的重量减少量最小,为1.119 g,添加KSAP保润剂的样品烟丝最终含水率最高,为10.05%,说明KSAP的保湿性能和在卷烟中的保润效果优于丙二醇和甘油;在T为22+1℃、RH为(90+2)%时,KSAP吸湿率比丙二醇和甘油分别低2.39%和7.54%,说明KSAP兼具防潮的功效。同时红外光谱和扫描电镜的结构分析表明,KSAP为富含—OH和—COO—亲水基团的多网格物理结构的高分子材料。

To develop a new humectant of tobacco, the effect of KSAP （konjac superabsorbent polymer） applying in tobacco was tested by contrasting with KGM （konjac glucomannan）, propylene glycol and glycerin.The results indicated that at the condition of 22±1℃ and of 40%±2% RH （relative humidity）, KSAP solution had the least weight reduction of 1.119 g, and the tobacco of KSAP had the highest water content of 10.05%, which means the moisture retention of KSAP added in tobacco is better than the effects of KGM, propylene glycol and glycerin. At the condition of 22±1℃ with 90%±2% RH, the moisture absorption rate of KSAP was less than that ofpropylene glycol and glycerin, which means excellent humidity resistance. IR （infrared spectrum） analysis indicated that hydrophilic group is rich in KSAP. The SEM image showed that KSAP has network structure.