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Preparation and characterization of dialdehyde starch by one-step acid hydrolysis and oxidation.
Zuo, Yingfeng; Liu, Wenjie; Xiao, Junhua; Zhao, Xing; Zhu, Ying; Wu, Yiqiang.
Afiliação
  • Zuo Y; College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China; Hunan Provincial Collaborative Innovation Center for High-efficiency Utilization of Wood and Bamboo Resources, Central South University of Forestry and Technology, Changsha 4
  • Liu W; College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China.
  • Xiao J; College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China.
  • Zhao X; College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China; Hunan Provincial Collaborative Innovation Center for High-efficiency Utilization of Wood and Bamboo Resources, Central South University of Forestry and Technology, Changsha 4
  • Zhu Y; College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China.
  • Wu Y; College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China; Hunan Provincial Collaborative Innovation Center for High-efficiency Utilization of Wood and Bamboo Resources, Central South University of Forestry and Technology, Changsha 4
Int J Biol Macromol ; 103: 1257-1264, 2017 Oct.
Article em En | MEDLINE | ID: mdl-28587965
ABSTRACT
Dialdehyde starch was prepared by one-step synthesis of acid hydrolysis and oxidation, using corn starch as the raw material, sodium periodate (NaIO4) as the oxidant, and hydrochloric acid (HCl) as the acid solution. The prepared dialdehyde starch was characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and gel permeation chromatography (GPC). The results confirmed that oxidation occurred between the starch and NaIO4. The acid hydrolysis reaction reduced the molecular weight of starch and effectively improved the aldehyde group contents (92.7%). Scanning electron microscope (SEM) analysis indicated that the average particle size decreased after acid hydrolysis and oxidation reaction. X-ray diffraction (XRD) and thermal gravimetric analyzer (TGA) analysis demonstrated that the crystallinity of the obtained dialdehyde starch showed a downward trend and a decelerated thermal decomposition rate. The starch after acid hydrolysis and oxidation exhibited lower hot paste viscosity and higher reactivity.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Amido / Ácido Clorídrico Idioma: En Revista: Int J Biol Macromol Ano de publicação: 2017 Tipo de documento: Article
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Amido / Ácido Clorídrico Idioma: En Revista: Int J Biol Macromol Ano de publicação: 2017 Tipo de documento: Article