鲜煮但不冷藏的小米表现出了与耐药粉独立的显着的第二餐效应:一个随机交叉试验
Xiyihe Peng1, Zhihong Fan1,2, Jinjie Wei1
1College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China.
冷藏会显著降低第一餐中非质谷物如大米和小米的血糖反应. 新鲜煮熟的无质小米也显示出了显著的第二餐效应,影响了血糖水平.
科学领域:
- 食品科学 食品科学 食品科学
- 营养科学 营养科学
- 代谢健康 代谢健康
背景情况:
- 众所周知,冷藏可增加耐性粉 (RS) 并降低碳水化合物食品的葡萄糖指数 (GI).
- 冷藏对随后的食物,特别是谷物糖分反应的影响仍然不太清楚.
研究的目的:
- 为了研究和比较第一和第二餐后质和非质谷物 (大米和小米) 的食后血糖反应.
- 评估新鲜煮熟与冷藏储存对血糖控制的影响.
主要方法:
- 一个随机交叉试验,涉及18名健康女性,每人摄入8次新鲜或冷 (4°C24小时) 无/有米和小米的试验餐 (50g碳水化合物).
- 吃饭后的血糖和胰岛素被测量. 粉分数 (RDS,SDS,RS) 通过体外分析确定.
主要成果:
- 与新鲜煮熟的无米相比,冷藏的无米和小米的葡萄糖iAUC明显较低 (24.4%和29.5%), (p <0.05).
- 在质谷物 (新鲜或冷) 中没有观察到显著的血糖或胰岛素血糖差异.
- 新鲜煮熟的无质小麦在第二顿饭时呈现了39.1%较低的葡萄糖IAUC (p < 0.05),并且具有最高的缓慢消化粉 (SDS) 含量.
结论:
- 冷却有效地减少了第一顿饭期间非质谷物的血糖外流.
- 新鲜煮熟的无质小米,而不是其冷藏对应物,显著影响第二餐的血糖反应,突出其独特的粉特性.
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