食品科学 ›› 2012, Vol. 33 ›› Issue (9): 41-46.doi: 10.7506/spkx1002-6630-201209009

• 基础研究 • 上一篇    下一篇

纳米豆渣纤维素理化性质和表征特性

刘玲玲,田云波,刘 雄*   

  1. 西南大学食品科学学院,国家食品科学与工程本科教学示范中心
  • 出版日期:2012-05-15 发布日期:2012-05-07
  • 基金资助:
    国家大学生创新性实验计划项目(091063524)

Physico-chemical Properties and Characterization of Nano-Crystalline Soybean Dregs Cellulose

LIU Ling-ling,TIAN Yun-bo,LIU Xiong*   

  1. (Experiment and Teaching Center of Food Science and Engineering, College of Food Science, Southwest University, Chongqing 400715, China)
  • Online:2012-05-15 Published:2012-05-07

摘要: 以富含纤维素的豆渣为原料,探究纳米豆渣纤维素的理化性质,并通过透射电镜、X射线衍射仪、综合热分析仪对所制备纳米豆渣纤维素进行表征,研究其结构与性质。所制备的纳米豆渣纤维素呈微球状,颗粒尺寸为15~50nm,仍属于纤维素Ⅰ型,结晶度为43.28%,晶粒平均尺寸为5.9nm,其膨胀力、重金属离子吸附能力较超微粉碎豆渣纤维素大,持水力、持油力较原料低。

关键词: 豆渣, 盐酸, 纳米纤维素, 性质, 表征

Abstract: In this study, nano-crystalline cellulose was prepared from soybean dregs (rich in cellulose) and used to investigate its physicochemical properties. Moreover, its structure was characterized using transmission electron microscope, X-ray diffractometer and comprehensive thermal analyzer. The prepared nano-crystalline cellulose was microspheres with particle size between 15 nm and 50 nm and still belonged to crystalline cellulose type Ⅰ. The crystallinity and average grain size were 43.28% and 5.9 nm, respectively. The nano-crystalline soybean dregs cellulose had higher expansive force and heavy metal ion-adsorbing capacity but lower oil-holding and water-holding capacities than the superfine soybean dregs cellulose.

Key words: soybean dregs, hydrochloric acid, nano-crystalline cellulose, property, characterization

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