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Synthesis of Bifunctional Polymeric Adsorbent and Its Application in Purification of Stevia Glycosides by Rongfu Shi; Mancai Xu; Zuoqing Shi; Yunge Fan; Xianzhi Guo; Yongning Liu; Chunhong Wang; Binglin He is a Materials Science article available to read on EtoBox.
What is Synthesis of Bifunctional Polymeric Adsorbent and Its Application in Purification of Stevia Glycosides about?
Polymeric adsorbents with both functions of adsorption and decolorization were synthesized by introducing quaternary 1 ammonium groups (e.g. -N (CH ) groups) into conventional resinic adsorbent used to adsorb stevia glycosides in 3 3 production. The relation between the adsorption capacity of the bifunctional adsorbents for stevia glycosides and the structure of adsorbents, and that between the decolorization efficiency and the structure were investigated. The results revealed that the adsorption capacity for stevia glycosides decreased somewhat as the increase of the content of quaternary ammonium groups in the adsorbent, while the decolorization efficiency increased. Adsorbents containing about 0.6-0.8 1 mmol / g of -N (CH ) groups showed both high adsorption capacity and high decolorization efficiency, and showed 3 3 adsorptive selectivity for the small-sized components of stevia glycosides. Mechanism of adsorption and decolorization was also studied, and revealed that adsorption of stevia glycosides was based on hydrophobic interactions, but decolorization was 1 based on both ion exchange and hydrophobic interactions. Introduction of -N (CH ) groups into polymeric adsorbent als
Who reads Synthesis of Bifunctional Polymeric Adsorbent and Its Application in Purification of Stevia Glycosides?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Rongfu Shi; Mancai Xu; Zuoqing Shi; Yunge Fan; Xianzhi Guo; Yongning Liu; Chunhong Wang; Binglin He
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 1381-5148)
- Published
- 2002
- Language
- EN
- Field
- Materials Science (Physical Sciences)