Earlier studies of several vegetable fats (1, 2) demonstrated that the saturated fatty acids of the triglycerides are found almost exclusivelyin the Iand 3-positions. The saturated acids in these species were predominantly palmitic and stearic. The advent of suitable gas-liquid chromatographic techniques makes possible a more detailed study of the distribution of individual fatty acids in trigl...

Naturally occurring fats are multi-component mixtures of triacylglycerols (TAGs), which are triesters of fatty acids with glycerol, and of which there are many chemically distinct compounds. Due to the importance of fats to the food and consumer products industries, fat crystallization has been studied for many years and many intricate features of TAG interactions, complicated by polymorphism, ...

Besides the true fats (compounds of glycerol and fatty acids) other substances closely related to fats are utilized in the animal economy. Some of t.hese, including cholesterol, are essential constituents of every living cell. Cholesterol exists in the body tissues in both a free condition and a combined form as esters of higher fatty acids; such as palmitic, oleic, and stearic. Cholesterol in ...

Fats are indispensable to life not only as an energy source but also for their structural role in the skin, retina, nervous system, lipoproteins, and biologic membranes. They are also precursors of important hormones and constitute the vehicle for the absorption of liposoluble vitamins. Nutritionists recommend a balanced lipid intake corresponding to a total amount of fats equal to 25% to 30% o...

The position of fatty acids in the TAG molecule (sn-1, sn-2 and sn-3) determines the physical properties of the fat, which affects its absorption, metabolism and distribution into tissues, which may have implications for the risk of CHD. The TAG structure of fats can be manipulated by the process of interesterification, which is of increasing commercial importance, as it can be used to change t...

Oils and fats are substances that are important nutritionally and have important role and impact on human health. Energy consumption and preservation in respect of food industry and the increase in the world population and search for new sources of oils and fats to full fill the need of the society particulary the nutritional requirements have introduced this research topic. Therefore aim of th...

Replacement with the cheaper animal fats or vegetable oils is conventional in milk through direct incorporation or homogenization of skimmed milk with less expensive foreign fats. The main objective of the present study was to evaluate the capability of a simple, fast, and reliable method for the detection of added palm oil in butter. The butter samples were mixed with palm oil (0.5-50 wt%) fol...

Biodiesel is an alternative fuel for diesel engines consisting of the alkyl monoesters of fatty acids from vegetable oils or animal fats. Most of the biodiesel that is currently made uses soybean oil, methanol, and an alkaline catalyst. The high value of soybean oil as a food product makes production of a cost–effective fuel very challenging. However, there are large amounts of low–cost oils an...

Chicken has been used as a suitable model for lipid metabolism studies, because dietary modifications especially dietary fat type can change chicken body composition. Fats act as a condense source of energy and certain fatty acids such as polyunsaturated fatty acids (PUFAs) are required for both animal and human health. The n-3 PUFAs, especially, eicosapentaenoic acid (EPA) and docosahexaenoic ...