Effect of Variation Time Storage Bengkoang (Pachyrrhizuserozus) to Cholesterol and Lypase Activities Rattus norvegicus

Inulin is a fructose polymer that is difficult to process with human digestion but can be fermented by Bifidobacteriabecome Short Chain Fattic Acids (SCFAs) like lactic acid, propionate and butirate. It is used for improving intestinal villi work and decreasing bad cholesterol levels. Yam (Pachyrrhizuserozus) is a leguminous plant from tropical America that is rich in inulin. The aim of this research is to get to know the relationship between the variations in the time storage of yam tubers to cholesterol levels and duodenum lipase activity. This research used The Post Test Only Control Group. The experimental animals used were Rattus Norvegicus. The groups are: a control group (K) with regular food and others using food mixed with yam with variations of (1 day (P1), 14 days (P2), and 28 days (P3)). After 50 days, duodenal and blood were taken to know the activity of the lipase duodenum and cholesterol levels. The result of this research are: 1. Blood cholesterol levels K, P1, P2, and P3 were 68.40, 51.80, 67, 81.80 (mg / dL). Lipase activity K, P1, P2, and P3 was 0:07, 0:05, 0:11, 0:13 (IU / mL). There is a relationship between the variations in the time of storing the tuber and the animal lipase, and blood cholesterol levels.