Rola lotnych kwasów tłuszczowych we wchłanianiu witaminy C

The process of vitamin C from the jejunum and caecum in the presence of volatile fat acids, i.e. acetic and propionic acids was studied. Absorption was determined by the method of intestinal loop perfusion and vit. C according to Roe- -Kuethner. It was found that volatile fat acids reduced in chickens the process of vitamin C absorption. These acidis under physiological conditions come from the de­composition of glucose obtained from the alimentary tract fodder, containing corns and kernels reach in starch. Pro­pionic acid lowered vit. C absorpiton much stronger than acetic acid: from 2.60 to 1.42 mg/l/cm2/60 min. in the jejunum and from 4.00 to 2.20 mg/l/cm2/60 min. in the caecum. Acetic acid reduced vit. C absorption in the caecum from 4.00 to 3.20 mg/l/cm2/60 min. In some animals (ruminants, pigs, horses) in which volatile fat acids are produced from the metabolism of cellulose, inhibition of vitamin C absorption may also takes place.