摘要
以姜渣纤维素为原材料,通过超声波辅助酸解的方法对姜渣纤维素进行纳米化处理,得到纳米姜渣纤维素。通过对超声波功率、硫酸浓度、酸解温度、酸解时间4个影响因素进行单因素试验、正交试验,确定其最佳的工艺条件,并通过透射电镜对其表观结构进行进一步分析。研究结果表明,制备纳米姜渣纤维素的最佳工艺参数为超声波功率135 W、硫酸浓度60%、酸解温度50℃、酸解时间90 min,在此条件下纳米姜渣纤维素的产率为32.97%,其表观为针状,细小均匀,直径(5～10)nm,长度500 nm～1μm,达到纳米纤维素尺寸级别,这为纳米纤维素的深入研究提供理论参考。
In this paper, the cellulose of ginger slag was nano-treated by the method of ultrasonic assisted acid solution. By means of ultrasonic power, concentration of sulfuric acid, acid solution, temperature,acid solution time four factors were chosen to carry out the single factor and orthogonal test, the best preparation conditions were determined, and through the transmission electron microscopy to analyze its apparent structure. Research results show that the optimum parameters of preparation of cellulose nanocrystal from ginger slag for ultrasonic power 135 W, 60% sulfuric acid concentration, acid solution temperature 50 ℃, acidolysis time 90 min, under the condition of the cellulose nanocrystal production rate of 32.97%, its apparent is needle-like, small and even, with a diameter of about（5-10）nm, and the length is about 500 nm-1 μm, reaches the size of nano-cellulose, which provides theoretical reference for the further research of nano cellulose.
作者
陆红佳
殷孟婷
刘庆庆
LU Hong-jia;YIN Meng-ting;LIU Qing-qing(College of Forestry and Life Sciences, Chongqing University of Arts and Science, Chongqing 40160; College of Material and Chemical Engineering, Tongren University Tongren 55430)
出处
《食品科技》
CAS
北大核心
2018年第10期98-103,共6页
Food Science and Technology
基金
重庆市教育委员会科学技术研究项目(KJ1601105)
重庆文理学院引进人才项目(R2016LX05)
关键词
纳米纤维素
姜渣纤维素
超声波
酸解
cellulose nanocrystal
ginger slag
ultrasonic
acid solution
