Favre B, Poullain B, Bleyer R
Ann Nutr Aliment. 1978;32(2-3):365-75.
Most of metabolic studies in man concerning the ability of soya proteins to obtain an equilibrated nitrogen balance have been made with extruded products. Because of the extending development of spun proteins, it seems necessary to study the protein quality of this type of product. A preliminary study in rat (C.E.P. method) was conducted to improve the nutritional value by complementation of the fibers by the way of binder. The metabolic utilization of this protein was evaluated in human subjects during two periods of 10 days. Soya protein cover respectively 78 and 48% of the total protein intake. Under these experimental conditions in which soya proteins constitute an important percentage of the total protein intake, the mean nitrogen balance is near to be equilibrated and the nitrogen utilization does not present any significative difference between the periods. Parallely to the suppression of animal proteins, the introduction of insatured lipids in the diet, has allowed, moreover, to decrease the concentration of the lipidic parameters of the subjects. This study demonstrated the dietetic interest and the ability of the studied product to provide the supplying of the nitrogen balance.
大多数关于大豆蛋白实现氮平衡能力的人体代谢研究都是针对挤压产品进行的。由于纺丝蛋白的不断发展，似乎有必要研究这类产品的蛋白质质量。通过在大鼠身上进行的初步研究（C.E.P.方法），利用粘合剂补充纤维来提高营养价值。在10天的两个时间段内，对人体受试者评估了这种蛋白质的代谢利用率。大豆蛋白分别占总蛋白质摄入量的78%和48%。在这些实验条件下，大豆蛋白在总蛋白质摄入量中占重要比例，平均氮平衡接近平衡，且两个时间段之间的氮利用率没有显著差异。此外，在减少动物蛋白摄入的同时，饮食中引入不饱和脂质，使得受试者的脂质参数浓度有所降低。这项研究证明了所研究产品在饮食方面的益处以及其维持氮平衡的能力。
