同位素饮料的度和度
Tjaša Skarlovnik1, Andraž Lamut2,3, Gregor Hostnik1
1Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova 17, SI-2000 Maribor, Slovenia.
Foods (Basel, Switzerland)
|May 25, 2024
概括
斯洛文尼亚市场上的许多"同位素"饮料不符合度标准. 进一步的分析显示,即使在正确的度范围内的饮料也可能由于pH和糖运输等因素而不是真正的同位素.
科学领域:
- 运动科学 运动科学 运动科学
- 人体生理学 人体生理学
- 食品科学 食品科学 食品科学
背景情况:
- 同位素饮料的配方与身体的液体度相匹配,以获得最佳的水分.
- 欧洲食品安全局 (EFSA) 为标记为同位素饮料的饮料设定了特定的度标准.
- 之前对商用同位素饮料的评估表明,它们遵守这些标准的程度有所变化.
研究的目的:
- 测量和比较斯洛文尼亚商用同位素饮料的度和强度.
- 评估测量饮料透性与EFSA对同性要求之间的一致性.
- 为了研究这些饮料的强度,使用除了简单的度测量之外的补充方法.
主要方法:
- 通过使用冷点压缩方法采用的度仪来确定度.
- 开发了两种新的方法,通过观察红细胞对饮料溶液的反应行为 (体积,形状) 来评估强度.
- 通过溶液度和直接显微镜形态检查分析了红细胞反应.
主要成果:
- 在18种被调查的同位素饮料中,12种符合EFSA的度范围 (270-330mOsm/kg).
- 六种饮料未能满足度标准,因此不应标记为同位素.
- 度测量表明,与具有相同度的NaCl溶液相比,饮料的度较低,由于饮料pH值较低而复杂化.
- 红细胞膜运输分析表明,高度的活性运输糖使一些异构糖饮料变得非异构糖.
结论:
- 斯洛文尼亚同位素饮料的很大一部分不符合既定的度标准.
- 饮料的强度是复杂的,并受到超越度的因素的影响,包括pH和溶解物运输.
- "同位素"标签对一些饮料可能是误导性的,因为红细胞对饮料成分的生理反应.
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