Pion R, Mendès Pereira E, Selle A, Sallas M
Ann Nutr Aliment. 1978;32(2-3):339-52.
The use of vegetable proteins such as legumes or oilseeds proteins is often restricted by antinutritional or toxic factors. Therefore, it is usefull, in order to extend their consumption, to isolate proteins from most of the other components of the seeds. Unfortunately, the technological processes may have some deleterious effects on the nutritive value of the proteins. Moreover, the proteins isolates and concentrates need further processing to be texturated in order to look like conventional foods for humans. We used growing rats to study the effect of some of these technological processes on the nutritive value of some field bean and sunflower protein feedstuffs. We estimated the digestive utilization of dry matter, nitrogen and amino acids, and the amino acid composition of feces was used in trying to explain some decreases in nitrogen digestibility. We also studied the ability of their amino acids to be used for growth, and tried to estimate their availability from blood and muscle free amino acids determinations. It may be inferred from the results that the technologists were successfull in improving their processes, and that textured field beans and sunflower proteins of good nutritional quality may be processed now.
诸如豆类或油籽蛋白等植物蛋白的使用常常受到抗营养或有毒因子的限制。因此，为了扩大它们的消费，将蛋白质与种子的大多数其他成分分离是有用的。不幸的是，工艺过程可能会对蛋白质的营养价值产生一些有害影响。此外，分离蛋白和浓缩蛋白需要进一步加工以使其具有质地，以便看起来像供人类食用的传统食品。我们用生长中的大鼠来研究其中一些工艺过程对某些蚕豆和向日葵蛋白饲料营养价值的影响。我们估计了干物质、氮和氨基酸的消化利用率，并利用粪便的氨基酸组成来试图解释氮消化率的一些下降。我们还研究了它们的氨基酸用于生长的能力，并试图通过测定血液和肌肉中的游离氨基酸来估计它们的可利用性。从结果可以推断，技术人员在改进工艺方面取得了成功，现在可以加工出营养质量良好的组织化蚕豆和向日葵蛋白。
