Evaluation of the nutritional value of the amaranth plant. I. Raw and heat-treated grain tested in experiments on growing rats.
Evaluation of the nutritional value of the amaranth plant. I. Raw and heat-treated grain tested in experiments on growing rats.
复制标题
苋菜植物的营养价值评价。
DOI：
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发表时间：
1998
影响因子：
0.9
通讯作者：
K. Jelenits
中科院分区：
文献类型：
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作者：
E. Andrásofszky;Z. Szöcs;S. Gy. Fekete;K. Jelenits
在大鼠身上进行了两项实验，以确定生苋菜和蒸熟苋菜种子的营养价值。第一个试验的试验组只饲喂磨碎的苋菜籽。对照组饲喂纯玉米粉。由于苋菜蛋白质含量较高，两个试验组的生长速率均高于对照组。蒸熟苋菜籽喂养的大鼠最终体重显著高于生苋菜籽喂养的大鼠。第二试验测定了生苋菜和蒸熟苋菜的净蛋白质利用率（NPU）。饲粮粗蛋白质浓度为10%，唯一的蛋白质来源是生的和蒸熟的苋菜籽粕。研究发现，对苋菜进行热处理后，即使老鼠的饮食中只含有10%的粗蛋白质，也能增加老鼠的体重。饲料中含有高压灭菌种子的饲料消耗量也较高。尽管发现NPU指数没有显著差异，但数据表明存在一种热不稳定的抗营养化合物。
Two experiments were carried out on rats to determine the nutritional value of raw and autoclaved amaranth (Amaranthus retroflexus) seeds. The test groups of the first experiment were fed only ground amaranth seed. The control group received pure maize meal. Both test groups showed higher growth rate than the control group, due to the higher protein content of amaranth. The final body weight of rats fed autoclaved amaranth seed significantly exceeded that of rats fed raw amaranth seed. The Net Protein Utilisation (NPU) index of raw and autoclaved amaranth was determined in the second experiment. The diets had 10% crude protein concentration and the only protein source was the meal of raw and autoclaved amaranth seed. It was found that the heat treatment of amaranth increased the body weight gain of rats even when the animals consumed diets containing only 10% crude protein. The feed consumption was also higher with the diet containing autoclaved seeds. Despite the finding that there was no significant difference in the NPU index, data suggest the presence of a heat-labile antinutritive compound.