乳清蛋白补充剂中的蛋白质和矿物质
Dailos González-Weller1,2, Soraya Paz-Montelongo2, Elena Bethencourt-Barbuzano2
1Health Inspection and Laboratory Service, Servicio Canario de la Salud, 38006 Santa Cruz de Tenerife, Spain.
Foods (Basel, Switzerland)
|June 10, 2023
概括
乳清蛋白补充剂经常错误标记蛋白质含量和矿物质含量,造成潜在的健康风险. 质量控制和监管对于体育营养产品的消费者安全至关重要.
科学领域:
- 食品科学 食品科学 食品科学
- 分析化学 分析化学
- 营养科学 营养科学
背景情况:
- 运动营养补充剂,特别是乳清蛋白,被广泛使用.
- 这些补充剂有助于通过饮食摄入矿物质,包括潜在的有毒元素.
- 目前的标签往往省略了详细的矿物质含量,主要关注蛋白质百分比.
研究的目的:
- 分析欧洲市场上可用的乳清蛋白补充剂的蛋白质和矿物质含量.
- 为了将声明的蛋白质百分比与实际含量进行比较.
- 评估这些补充剂中各种矿物质的含量,包括潜在的有毒元素.
主要方法:
- 用Kjeldahl方法确定蛋白质含量.
- 矿物质分析 (Ca, Mg, K, Na, Ba, B, Co, Cu, Cr, Sr, Fe, Li, Mn, Mo, Ni, V, Zn, Al) 使用诱导合等离子体 - 光辐射光谱法 (ICP-OES) 进行.
- 补充样本代表了欧洲市场.
主要成果:
- 在声明的蛋白质百分比和实际的蛋白质百分比之间发现了显著的差异,平均为70.9% (范围为18-92.3%).
- (K) 和 (Ca) 是最丰富的矿物质.
- 检测到低水平的 (Co) 和 (V).
结论:
- 乳清蛋白补充剂在很大程度上不符合标签要求.
- 这些产品的质量和安全性需要加强监管和监管.
- 需要进一步评估消费者摄入贡献.
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