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从pullulan衍生出来的寡糖的味觉感知
Shashwat Damani1, Michael H Penner1, Juyun Lim1
1Department of Food Science and Technology, Oregon State University, Corvallis, OR 97331, United States.
Chemical senses
|August 17, 2023
概括
人类可以品尝粉分解产品,如马尔托利戈糖 (MOS). 这项研究探讨了pullulan-derived oligosaccharides (PDOS) 的味道,发现它们的感知与MOS不同,这表明结构配置影响了味道检测.
科学领域:
- 食品科学和感官分析
- 碳水化合物的化学成分
- 人类的味觉感知 人类的味觉感知
背景情况:
- 最近的研究表明,人类可以感知粉水解产品的味道,特别是脂糖 (MOS).
- 对寡糖糖味觉的精确结构要求在很大程度上仍然没有被描述.
- 与MOS (α-1,4链接) 相比,Pullulan衍生寡糖 (PDOS) 具有独特的结构变异 (α-1,6链接),使其成为比较品味研究的理想选择.
研究的目的:
- 为了研究不同程度的聚合 (DP 3,6 和 9) 的普鲁兰衍生寡糖 (PDOS) 的味觉感知.
- 要确定PDOS是否激活甜味受体,以及它们的感知如何与马尔托糖 (MOS) 不同.
- 为了探索特定的糖化链接 (PDOS中的α-1,6与MOS中的α-1,4) 对味觉的影响.
主要方法:
- 三种食品级PDOS与DP 3,6,和9通过pullulan的有限的酶性水解来制备.
- 使用训练有素的受试者进行了感官评估,以区分PDOS刺激与空白,无论是否含乳醇 (一种甜味抑制剂).
- 一项定性研究评估了受试者对PDOS和葡萄糖味道的分类和描述.
主要成果:
- 在缺乏乳糖醇的情况下,受试者可以显著检测出所有三个PDOS刺激 (DP3,6,9).
- 在乳醇的存在下,DP 3是不可检测的,而DP 6和9在较低的显著水平上被检测出来.
- 定性分析显示,PDOS被认为是甜的,DP 3与葡萄糖分组,DP 6/9表现出更微妙的味道特征.
结论:
- 味觉感知PDOS主要由甜味受体介导,使它们与MOS区别开来.
- 结构上的差异,特别是糖链接类型,显著影响寡糖的味觉感知.
- 除了甜味之外,PDOS可能具有独特的感官属性,这需要进一步研究它们对味道的结构影响.
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