Sucrose formation in the human and animal organism

Using paper chromatography as well as chemical and enzymatic methods it has been found that sucrose is a usual component of human and animal urine. Its concentration in the urine varies from 10 to 100 mg % and does not change significantly on diet which does not contain sucrose. After prolonged total starvation the daily amount of sucrose in the urine of the patients reached 200–300 mg. These data suggest that sucrose is endogenous by origin. Sucrose was isolated also from human foetal kidneys, from foetal cows kidneys and from kidneys of adult rabbits after 3–6 days of total starvation. Its quantity varied from 9.6 to 82.0 mg %. The kidneys are supposed to be the most probable site of sucrose synthesis in the human and animal organism.