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Pectin gels based on H+/(NH4)2SO4 and its potential in sustained release of NH4.
Jiang, Wen-Xin; Qi, Jun-Ru; Liao, Jin-Song; Yang, Xiao-Quan.
Afiliação
  • Jiang WX; Research and Development Center of Food Proteins, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, PR China.
  • Qi JR; Research and Development Center of Food Proteins, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, PR China. Electronic address: jrqi@scut.edu.cn.
  • Liao JS; Guangzhou Laimeng Biotechnology Co. Ltd., Guangzhou 510640, PR China; School of Life Sciences, South China Normal University, Guangzhou 510640, PR China.
  • Yang XQ; Research and Development Center of Food Proteins, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, PR China.
Int J Biol Macromol ; 208: 486-493, 2022 May 31.
Article em En | MEDLINE | ID: mdl-35304200
ABSTRACT
A gelling strategy for HP was proposed in this study, ammonium sulfate (AS) as a co-solute could induce the gelling of HP in acidic environment. The solubility and Zeta potential of HP dramatically decreased in AS solution, which indicated AS could promote the aggregation of HP. The rheological results confirmed the gelling of HP (G' > G″) with AS 25-30 wt% and pH ≤ 3.0, and the gel strength is mainly depended on HP rather than AS concentration. Smaller AS crystals (SEM) and reduced T2 values (LF-NMR) were observed in HP gels, suggested the gel network of HP could limit the migration of AS and water. Finally, it was found that the release process of NH4+ in HP + AS gel was lagged behind that of pure AS, which verified the potential of HP + AS gel in the field of sustained-release fertilizers.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Pectinas Idioma: En Revista: Int J Biol Macromol Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Pectinas Idioma: En Revista: Int J Biol Macromol Ano de publicação: 2022 Tipo de documento: Article