Pokrovskiĭ A A, Somin V I, Ekimovskiĭ A P
Vopr Pitan. 1978 May-Jun(3):34-40.
The content of free amino acids, non-precipitable and precipitable trichloro-acetic acid peptides in Soviet-made hydrolysates for parenteral alimentation was determined. As shown, it is aminopeptide and aminosol that contain the greatest amounts of amino acids, fibrinosol and caseine hydrolysate carrying their least quantities, with aminocrovine and hydrolysine occupying an intermediate place in this respect. The quality of hydrolysates was assessed according to their biological value and to do so chemical numbers of essential amino acids were calculated and limiting factors determined. Fibrinosol and aminosol and to a somewhat lesser degree--casein hydrolysate were found to be best balanced as concerns their amino acids composition. Aminopeptide, hydrolysine and especially aminocrovine were manifestly inadequate by their biological value, since they contain limiting amino acids (isoleucine, cystine and methionine).
测定了苏联产用于肠胃外营养的水解产物中游离氨基酸、不可沉淀和可沉淀的三氯乙酸肽的含量。结果表明，氨基肽和氨溶液含氨基酸量最多，纤维蛋白溶酶和酪蛋白水解产物含氨基酸量最少，氨基丙氨酸和水解赖氨酸在这方面处于中间位置。根据水解产物的生物学价值评估其质量，为此计算了必需氨基酸的化学数值并确定了限制因素。发现纤维蛋白溶酶和氨溶液以及程度稍低的酪蛋白水解产物在氨基酸组成方面平衡最佳。氨基肽、水解赖氨酸，尤其是氨基丙氨酸，因其生物学价值明显不足，因为它们含有限制氨基酸（异亮氨酸、胱氨酸和蛋氨酸）。
