Potatoes (Solanum Tubersum, L) belongs to family Solanaceae, it is called potato or Irish potato. Egypt is a leader country in cultivating and exporting potatoes in the area of Middle East. Now in Egypt a great part of potato crop directed to chips production to supply the Egyptian and foreign market throughout the year. The chipping companies complain about the discoloration of the product due to the high reducing sugars even after a considerable storage time after harvesting. Factories in most cases use the available varieties of potato in the market without recognizing if it is suitable...