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一项关于豆类蛋白在婴儿中真正不可或缺的氨基酸消化能力的观察性研究
Shalini G Hegde1, Sindhu Kashyap2, Nirupama Shivakumar2
1Department of Pediatric Surgery, St. John's Medical College Hospital, Bengaluru, India.
The American journal of clinical nutrition
|September 25, 2025
概括
婴儿对豆蛋白具有很高的真正必不可少的氨基酸 (IAA) 消化能力. 然而,可消化必需氨基酸评分 (DIAAS) 仍然很低,这表明婴儿饮食中需要豆类-谷物混合物.
科学领域:
- 营养科学 营养科学
- 儿童营养学 儿童营养学
- 蛋白质消化和新陈代谢
背景情况:
- 豆类是低收入和中等收入国家补充食品中的重要蛋白质来源.
- 婴儿的消化不成熟可能会限制豆类蛋白质的消化能力.
研究的目的:
- 在10-12个月大的婴儿中量化豆蛋白的真正必不可少的氨基酸 (IAA) 消化能力.
- 为了评估豆的蛋白质质量,用于婴儿营养.
主要方法:
- 使用双稳定同位素技术进行横截面研究.
- 在6名婴儿中测量了与U-13C-spirulina参考蛋白相比,内在2H标记的豆蛋白的IAA消化能力.
- 还测量了另外3名婴儿的参考蛋白质消化能力.
主要成果:
- 婴儿中豆蛋白的平均真IAA消化率为83.6%,婴儿中螺旋藻蛋白为103.5%.
- 婴儿消化能力值超过了以前报告的成人消化能力值.
- 豆蛋白的可消化必需氨基酸评分 (DIAAS) 为50%.
结论:
- 婴儿对豆蛋白具有高平均IAA消化能力,需要进一步确认.
- 低的DIAAS表明需要补充养策略,例如1:2豆类-谷物比例,以满足婴儿的蛋白质需求.
- 在印度临床试验注册处注册的临床试验 (CTRI/2020/09/027639).
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