Biological Efficacy of Formose

Mizuno and coworkers tested the nutritive eflBcacy of formose by feeding young and adult rats with a purified mixture of the formose sugars. As shown in Figs. 20 and 21, the replacement of all, or half, of the natural sugar by formose caused profuse diarrhea, ending in the death of all of the rats. On autopsy, blisters in the intestine, the blind gut, and the colon were observed, as well as contracted spleen and liver and swollen kidneys and suprarenal bodies. When the replacement was 

Effects of Formose on Metabolism and Motility of Washed, Boar Spermatozoa  

Substrate Uptake of oxygen (jil/UA sperm) Accumulation of lactate (jig/l(A sperm) Motility (%) 

Observations made with bakers yeast showed that it hardly utilizes formose, whereas other yeasts were found not only to utilize formose but to grow well on dilute solutions of formose (see Table VII). A variety of fungi and bacteria also grow well on synthetic media contain- 

Yeast D-Ghtcose D-Glucitol Mannitol Glycerol 1,3-Dihydroxy- S-propanone Formose  

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