Patent ID: 7517544
Filing Date: 2009-04-14
Classification: A21D,A23D,A23L,A23P

Abstract:
1. A method for frying food comprising: cooking a food in an oil composition comprising at least 15% by weight of diglycerides, wherein during said cooking for at least four hours, a total nitrogen content of said oil composition of a value of 0.2% by weight or lower is controlled by adding new oil to replace a part of old oil; and wherein a volume of oil is at least 5 liters wherein frying is conducted under frying conditions wherein the time required to replace the whole oil, which is defined by the following equation (1), amounts to 10 to 25 hours when the proportion of the material of fry is lower than 2.5 parts by weight per 100 parts by weight of said oil and 3-20 hours when the proportion of the material of fry is not lower than 2.5 parts by weight per 100 parts by weight of said oil wherein said frying oil is treated with a nitrogen adsorbent.