一种可溶性大豆多糖酸酸盐的合成,结构特征和体外消化稳定性
Wenhong Gao1, Xueli Jin1, Liyuan Jiang2
1School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China.
International journal of biological macromolecules
|August 31, 2024
概括
与 (SSPS-Zn) 结合的可溶性大豆多糖化物 (SSPS) 增加了含量并改变了多糖的结构. 这种新补充剂表现出更好的稳定性和受控释放,为营养应用提供了潜力.
科学领域:
- 食品科学与技术 食品科学与技术
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 溶性大豆多糖 (SSPS) 是一种复杂的碳水化合物,具有金属化潜力.
- 缺乏是一个全球性的健康问题,需要改进营养物质的输送系统.
- 化可以改变多糖的特性,提高矿物质的生物可用性.
研究的目的:
- 为了研究可溶性大豆多糖化物 (SSPS) 和 (Zn) 之间的化反应.
- 为了优化SSPS-Zn复合体形成的合成参数.
- 描述化时SSPS的结构和物理化学变化,并评估其作为补充剂的潜力.
主要方法:
- 使用响应表面方法来确定最佳的SSPS-Zn合成条件.
- 使用光谱技术 (UV-vis,FTIR,XRD),热分析 (TGA),显微镜 (AFM,SEM) 和能量散射X射线光谱 (EDX) 进行了表征.
- 在体外胃肠道消化模拟评估离子 (Zn2+) 释放动力学.
主要成果:
- 在pH 5.3下达到最佳的SSPS-Zn合成,SSPS:ZnCl2比为9.44:1,50.44°C和1.5小时,产生24.73%的含量.
- 与SSPS.Zn相比,SSPS-Zn表现出增加的甲基甲,减少的中性单糖,较低的蛋白质含量和增强的结晶性.
- FTIR证实了Zn2+与SSPS的CO组的结合,刚果红色试验表明从三螺旋转变为不规则的自由卷,TGA显示热稳定性增加. 在体外消化过程中,在2小时内释放了68.87%的Zn2+.
结论:
- 用对SSPS进行化,可显著改变其结构和物理化学性质.
- 合成的SSPS-Zn复合体表现出增强的热稳定性和受控的释放.
- 这项研究为开发使用SSPS-Zn化技术的新补充剂提供了基础.
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