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评估不同蛋白质来源的蛋白质棒的蛋白质量和蛋白质营养质量

Judit Tormási¹, Eszter Benes¹, Éva Lengyel Kónya¹

¹Institute of Food Science and Technology, Department of Food Chemistry and Analysis, Hungarian University of Agriculture and Life Sciences (MATE), Budapest, Hungary.

Scientific reports

|March 19, 2025

概括

大多数标有"蛋白质含量高"的蛋白质棒具有低蛋白质营养质量. 消化率指数 (DIAAS) 和消化必需氨基酸评分 (PDCAAS) 值在酒吧中低于纯蛋白质来源中,这表明生物可用性差.

科学领域:

营养科学营养科学
食品化学食品化学
生物化学生物化学

背景情况:

蛋白质棒是受欢迎的补充剂,通常被销售为高蛋白质.
对消费者来说,评估这些棒中的蛋白质真正的营养质量至关重要.
蛋白质来源和条形矩阵组成可以影响蛋白质的消化能力.

研究的目的:

评估商用蛋白质棒的蛋白质含量和营养质量.
为了比较一个条形矩阵中的各种蛋白质来源的蛋白质消化能力与纯源.
使用DIAAS和PDCAAS确定蛋白质来源和蛋白质营养质量之间的关系.

主要方法:

分析了1641个蛋白质棒,使用来自OpenFood.org.org的数据.
在体外消化模拟 (Infogest方法) 以确定蛋白质的营养质量.
计算可消化性指数 (DIAAS) 和可消化必需氨基酸评分 (PDCAAS) 的不同蛋白质棒配方.

主要成果:

81%的分析棒符合"高蛋白质" (>20%蛋白质) 的标准.
与纯蛋白质来源相比,在蛋白质条矩阵内,体外蛋白质消化率较低 (47-81%).
最高的DIAAS (61) 和PDCAAS (62) 在仅含牛奶蛋白质的酒吧中观察到;整体值很低.

结论:

许多"高蛋白"酒吧的蛋白质营养质量很低,正如DIAAS和PDCAAS指出的那样.
像原蛋白,碳水化合物,脂肪和纤维这样的成分可能会降低必需氨基酸的生物可访问性.
消费者应该知道,蛋白质条标签可能不反映实际蛋白质的营养质量.

关键词:

动物蛋白质是动物蛋白质.迪亚斯·迪亚斯 (Diaz Diaz) 是一个在体外消化模拟体外消化模拟植物蛋白质是一种植物蛋白质.蛋白质来源蛋白质来源

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