| 玉米秸秆纳米纤维素的制备及表征 |
| |
| 引用本文： | 孙海涛,邵信儒,瞿照婷,秦婷,马中苏.玉米秸秆纳米纤维素的制备及表征[J].食品科学,2018,39(8):205-211. |
| |
| 作者姓名： | 孙海涛 邵信儒 瞿照婷 秦婷 马中苏 |
| |
| 作者单位： | （1.通化师范学院 长白山食用植物资源开发工程中心，吉林?通化 134000；2.通化师范学院食品科学与工程学院，吉林?通化 134000；3.吉林大学食品科学与工程学院，吉林?长春 130062） |
| |
| 基金项目： | 吉林省教育厅“十三五”科学技术研究规划项目（JJKH20170435KJ）；
“十二五”国家科技支撑计划项目（2015BAD16B05） |
| |
| 摘 要： | 利用超声辅助硫酸水解法制备玉米秸秆纳米纤维素（corn straw nanocellulose，NCSC），研究超声辅助酸解条件对NCSC得率的影响，并通过响应面法优化得到最佳工艺条件为：硫酸体积分数64%、超声功率160?W、酸解温度48?℃、酸解时间78?min，在此条件下制备NCSC得率达38.29%。制备的NCSC较洁白、细腻，具有较好的吸水膨胀力。通过红外光谱分析、X射线衍射和热失重分析表明，NCSC仍保持着玉米秸秆纤维素（corn straw cellulose，CSC）的基本化学结构，其结晶度（70.53%）高于CSC，同时具有较高的热分解温度。
|
| 关 键 词： | 纳米纤维素 玉米秸秆 超声 表征 酸解 |
Preparation and Characterization of Corn Straw Nanocellulose |
| |
| Sun Haitao,Shao Xinru,QU Zhaoting,QIN Ting,MA Zhongsu.Preparation and Characterization of Corn Straw Nanocellulose[J].Food Science,2018,39(8):205-211. |
| |
| Authors: | Sun Haitao Shao Xinru QU Zhaoting QIN Ting MA Zhongsu |
| |
| Affiliation: | (1. Changbai Mountain Edible Plant Resources Development Engineering Center, Tonghua Normal University, Tonghua 134000, China; 2. College of Food Science and Engineering, Tonghua Normal University, Tonghua 134000, China;3. College of Food Science and Engineering, Jilin University, Changchun 130062, China) |
| |
| Abstract: | Corn straw nanocellulose (NCSC) was prepared by ultrasound-assisted sulfuric acid hydrolysis method. The effects of experimental conditions on the yield of NCSC were studied. The optimum conditions were obtained using response surface methodology as follows: H2SO4 concentration, 64%; ultrasonic power, 160 W; temperature, 48 ℃; and hydrolysis time, 78 min. Under these conditions, the yield of NCSC was 38.29%. The NCSC was white and delicate, and had good water swelling force. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and thermogravimetric analysis (TGA) showed that the NCSC maintained the basic chemical structure of corn straw cellulose (CSC). Its crystallinity (70.53%) and thermal decomposition temperature were higher than those of CSC. |
| |
| Keywords: | nanocellulose corn straw ultrasound characterization sulfuric acid hydrolysis |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《食品科学》浏览原始摘要信息 |
|
点击此处可从《食品科学》下载全文 |
|
