Peter Jempsun P. de Guzman Jr., Nestor Gabriel L. Jalandoni (March 2012)
Philippine Science High School Western Visayas Campus – Department of Science and Technology (DOST-PSHS WVC), Brgy. Bito-on, Jaro, Iloilo City 5000, Philippines
ABSTRACT
Eggs are part of humans’ everyday diet. They contain high amounts of cholesterol. Eggs contain 240 mg of cholesterol mostly found in yolk. High cholesterol levels can cause coronary heart disease, heart attack, as well as stroke. Several factors affect the amount of cholesterol in chicken eggs including the age of the hen, its genetic background, the hen’s diet, and the size of the egg. Phytosterols added to the diet can help in the metabolism of cholesterol. Feeding plant sterols may cause cholesterol reductions in laying hens fed with cholesterol-enriched diets, but whether plant sterols can lower egg cholesterol contents in laying hens fed with cholesterol-free diets has only recently been investigated, and, as such, these findings require confirmation. Rice Bran Oil (RBO) has the highest quantity of cholesterol among all oils. This study aimed to determine the effect of RBO on the quantity of cholesterol among all oils. This study aimed to determine the effect of RBO on the quantity of cholesterol in chicken eggs of layer hens. Chickens were fed with four different diets: control diet, 1% RBO diet, 2% RBO diet, and 5% RBO diet. Spectrophotometric analysis was carried out to determine the concentrations of cholesterol in the eggs. Measurements were quantified in terms of absorption. One way ANOVA of absorbance of against 3 different concentrations of showed a significant difference at a=.0.05. The F value is 13.41, while the p value is 0.00137. Turkey’s Multiple Comparison Test was conducted on the different parings of rice bran oil concentration. To conclude, eggs of the chicken fed with 3% Rice Bran Oil have the lowest amount of cholesterol among all the diets.