Rerat A, Simoes-Nunes C, Lacroix M, Vaugelade P, Vaissade P
C R Acad Sci III. 1985;300(7):293-6.
The quantitative kinetics of appearance of amino acids (a.a.) in the pig portal vein was studied in 6 animals for 5 hrs. after duodenal perfusion of an enzymatic hydrolysate of milk proteins or a solution of free a.a. of the same composition. Each product was given in two quantities (55 and 110 g). The quantities of a.a. appearing in the portal vein were higher after perfusion of the hydrolysate than after that of the free a.a., independently of the time after the perfusion. Thus, nitrogen present in the small intestine as small peptides is absorbed more quickly than when it is present as free amino acids.
在6只动物中研究了十二指肠灌注乳蛋白酶解物或相同组成的游离氨基酸溶液后5小时内猪门静脉中氨基酸(a.a.)出现的定量动力学。每种产品均以两种量(55克和110克)给予。无论灌注后的时间如何,灌注酶解物后门静脉中出现的氨基酸量均高于游离氨基酸灌注后。因此,以小肽形式存在于小肠中的氮比以游离氨基酸形式存在时吸收得更快。