Used cooking oil is widely considered waste because it can damage the environment and cause health problems. Meanwhile, used be as a substitute raw material for Crude Palm Oil (CPO) in Indonesia's national biodiesel program. Indonesia has remarkable ability to use making biodiesel. If 1.2 million kiloliters of made from CPO materials are exchanged with materials, save approximately Rp. 4.2 tril...

Repeated use of cooking oil had been proven hazardous due to degradation process that contributes to the formation of polar compounds in the oil. Presently, the rate of cooking oil degradation is indicated by the percentages of its total polar compounds (TPC). In this study, impedance sensor probe was designed to assess the cooking oil degradation at several heating time intervals by measuring ...

The aim of present work was to bioremediate the waste cooking oil using a novel lipase produced in solid medium containing waste grease and wheat bran by Penicillium chrysogenum. Enzyme extracted with phosphate buffer was purified 10.6 and 26.28-fold after 90% ammonium sulfate precipitation and ion-exchange chromatography, respectively. The partial characterization of enzyme revealed its K(m) a...

Cigarette smoking cannot fully explain the epidemiologic characteristics of lung cancer in Taiwanese women, who smoke rarely but have lung cancer relatively often. In a previous study, the authors suspected that exposure to fumes from cooking oils was an important risk factor for lung cancer in Taiwanese women nonsmokers in the Republic of China. In a new case-control study conducted in 1993-19...

The Chinese style of cuisine requires steaming, boiling, or using oil to pan fry or deep fry. If the cuisine is prepared by stir-fry, the cooking oil in the fry pan is ordinarily heated in advance to approximately 300°C. A variety of chemical reactions occur while the temperature of the cooking oil in the pan is being elevated and the cooking materials are finally loaded into the hot pan. Chemi...