食品与发酵工业 >

2019 , Vol. 45 >Issue 20: 222 - 231

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.021065

生产与科研应用

薯渣再生纤维素及薯渣纤维素接枝丙烯酸的优化

  • 谭属琼 ,
  • 黄可 ,
  • 刘雄 ,
  • 谢勇武
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  • 1(闽南科技学院,福建 泉州,362332);
    2(西南大学 食品科学学院,重庆,400715)
硕士,副教授(刘雄教授为通讯作者,E-mail:liuxiong848 @hotmail.com)

收稿日期: 2019-05-10

  网络出版日期: 2019-12-20

基金资助

重庆市科委集成示范项目(cstc2012jcsf-jfzh0033);重庆市科委民生专项一般项目(cstc2015shmszx80016)

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Optimization of regeneration and graft acrylic acid with cellulose from sweet potato residue

  • TAN Shuqiong ,
  • HUANG Ke ,
  • LIU Xiong ,
  • XIE Yongwu
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  • 1(Minnan Science and Technology University, Quanzhou 362332, China);
    2(College of Food Science, Southwest University, Chongqing 400715, China)

Received date: 2019-05-10

  Online published: 2019-12-20

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摘要

以薯渣再生纤维素为原料,丙烯酸为接枝共聚反应单体,制备纤维素接枝丙烯酸产物。分别以薯渣再生纤维素得率和接枝率为指标,首先以氢氧化钠-硫脲-尿素溶液体系,通过正交实验优化协同超声低温提取薯渣再生纤维素的工艺,再利用Plackett-Burman(PB)设计和中心组合设计,优化纤维素接枝丙烯酸产物的工艺条件。采用优化的工艺条件,再生纤维素得率为54.59%,纯度高达96.68%;平均接枝率为(49.024±0.131)%,与预测值49.146%接近。该研究通过纤维素接枝丙烯酸为后续金属离子吸附研究提供理论依据。

关键词： 薯渣再生纤维素; 薯渣纤维素接枝丙烯酸; 正交试验; Plackett-Burman(PB)设计; 响应面分析

本文引用格式

谭属琼 , 黄可 , 刘雄 , 谢勇武 . 薯渣再生纤维素及薯渣纤维素接枝丙烯酸的优化[J]. 食品与发酵工业, 2019 , 45(20) : 222 -231 . DOI: 10.13995/j.cnki.11-1802/ts.021065

Abstract

Cellulose grafted acrylic acid (Cell-g-AA) product was prepared using sweet potato residue regenerated cellulose (RC) as raw material and the acrylic acid as the graft copolymerization reaction monomer. The yield and grafting rate of RC from sweet potato residue were determined by optimizing the synergistic ultrasonic low-temperature extraction of RC from sweet potato residue in sodium hydroxide-thiourea-urea solution. Plackett-Burman (PB) design and Center Combination Design (CCD) were used to optimize the processing conditions of cellulose grafted acrylic acid products. Under optimal processing conditions, the yield of RC was 54.59 %, and the purity reached 96.68 %. The average grafting rate was (49.024 ± 0.131) %, which was close to the predicted value of 49.146 %. This study provides a theoretical basis for the subsequent metal ion adsorption research by cellulose grafted acrylic acid.

Key words： regeneration cellulose (RC); cellulose graft acrylic acid (Cell-g-AA); orthogonal experiment; Plackett-Burman design; response surface methodology (RSM)

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