Biharmonic function of protein in mocorin and its optimization

Nutritional values of MOCORIN (Modification Of Bisi 2 Variety Yellow Corn (Zea Mays L.) - Rice Bran Flour) are studied based on the used mass, i.e. carbohydrate and protein. Optimal protein in MOCORIN is studied due to the observed carbohydate and mass from 5 types of data which are mixtures of yellow corn and rice bran. There are 5 types proportion used in the observation. The proportions of rice bran are 0% (only yellow corn), 12.5%,25%,37.5%, 50% respectively . The purpose of the research is to determine best proportion with maximum protein leading to optimization problem. By assuming protein follows a biharmonic function, the function is possible to be convex or concave. Therefore one cannot have only maximum value of protein. Hessian matrix and convexity properties are used and the result shows that 37.5% of rice bran is the best proportion.