粉修饰不同影响谷物基础饮食的体内蛋白质质量
Mousa Numan Ahmad1, Ayed S Amr1, Ghadeer A Othman2
1Department of Nutrition and Food Technology, The University of Jordan, Amman 11942, Jordan. mosnuman@ju.edu.jo.
Food & function
|February 26, 2026
概括
在小麦,玉米和小米谷物中粉修饰会影响蛋白质质量. 交叉链接和前凝化降低了小麦的蛋白质质量,比无质谷物更多,这表明对工业用途的谨慎应用.
科学领域:
- 食品科学与技术 食品科学与技术
- 营养生物化学 营养生物化学
- 谷物化学 谷物化学
背景情况:
- 功能性粉修饰为无质谷物限制提供解决方案,例如质地和保质期.
- 然而,人们对粉修改对谷物蛋白质质量的影响存在担忧.
研究的目的:
- 调查粉交叉链接 (CL) 和化前 (PG) 对小麦,玉米和小米的蛋白质质量 (in vivo) 的影响.
- 为了比较含质 (小麦) 和无质 (玉米,小米) 谷物之间的这些影响.
主要方法:
- 88只Wistar大鼠在28天的时间里接受了含有常规 (R),CL或PG形式的小麦,玉米或小米面粉 (10%蛋白质) 的异素,异热饮食.
- 评估的参数包括体重增加,平衡,蛋白质效率比 (PER),真正的蛋白质消化能力 (TPD),蛋白质消化能力纠正的氨基酸评分 (PDCAAS),血清IGF-I和白蛋白.
主要成果:
- 与素相比,以谷物为基础的饮食显著降低了体重增加,PER,PDCAAS和IGF-I.
- 小麦饮食显示CL和PG修饰的PER显著降低 (0.52和0.43),而不是R小麦 (1.09).
- 在所有谷物中,TPD,PDCAAS和IGF-I在CL和PG组中呈现下降趋势,在小麦中影响更为明显.
结论:
- 粉交叉链接和前凝化对蛋白质质量产生负面影响,特别是在以小麦为基础的饮食中,与玉米和小米相比.
- 在无质谷物 (如玉米和小米) 中进行粉改造可能是提高工业应用的方法,同时更好地保持蛋白质质量.
- 研究结果表明,需要量身定制的粉改造方法,以平衡谷物产品的功能性和营养价值.
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