Oils extracted from plants have been used since ancient times and in many cultures .frying oils are used in many countries all around the world including Iran. Therefore it is of great importance to ensure the safety of these food products which are usually delivered in polyethylene terephthalate (PET) bottles. This study has investigated the effect of storage time and temperature on the migrat...

This study aimed to examine the impact of frying process on physical and chemical properties widely consumed edible oils. Soybean, palm, mustard oils, as well raw dulpuri singara products, were procured from nearby marketplace. The oils underwent five consecutive cycles at temperatures exceeding 160°C subjected hours heating. Analyses including determination free fatty acid (FFA), peroxide valu...

Physical and chemical changes were compared with soybean oil, corn oil, cottonseed oil , rice oil, rapeseed oil, lard, palm oil and coconut oil in continuous water spraying and heating system (Table -1 , Fig,-1•`4). Thermal oxidative changes such as viscosity increasing ratio, carbonyl and iodine value , showed close relation with the initial iodine value of these oils. However, in coconut oil ...

The major oils currently used for deep-frying in Australia are palmolein and tallow. Ninety thousand tonnes of palmolein are imported into Australia annually for this purpose while an exportable surplus of thirty thousand tonnes of crude canola oil exists. The current composition of canola oil is not suitable for deep-frying, as it is unstable due to a high content of unsaturated fats. Palmolei...

Changes in antioxidant properties and degradation of bioactives in palm oil (PO) and rice bran oil (RBO) during deep-frying were investigated. The alpha (α)-tocopherol, gamma (γ)-tocotrienol and γ-oryzanol contents of the deep-fried oils were monitored using high performance liquid chromatography, and antioxidant activity was determined using 2-diphenyl-1-picryl hydrazyl (DPPH) radical scavengi...

Vegetable oils and fats have a big contribution in our diet as cooking or frying oil, salad oil or in food products formulation. They are important from nutritional and economical point of views. Their authenticity is a serious issue since old time. Some edible oils and fats such as olive oil, cocoa butter and milk fat are so expensive which makes tempting to adulterate them with other lower pr...