期刊名称：Journal of Nutritional Science and Vitaminology
印刷版ISSN：0301-4800
电子版ISSN：1881-7742
出版年度：1978
卷号：24
期号：2
页码：123-132
DOI：10.3177/jnsv.24.123
出版社：Center for Academic Publications Japan
摘要：The properties of thiamine diphosphatase (TDPase) and p-nitrophenylphosphatase ( p -NPPase) in rat small intestine were investi gated. TDPase activity, like p -NPPase activity, was high in the mucosa and in the proximal region. Both activities were high in the membrane associated fractions of the duodenal mucosa. Furthermore, TDPase had the same properties as intestinal alkaline phosphatase (al-Pase). These results suggest that thiamine diphosphate (TDP) and p -nitrophenyl phosphate ( p -NPP) are hydrolyzed by a single enzyme, al-Pase, in the intestine.
