Limit your intake of saturated fats there are not so many deseases with this fat, but you cannot eat them a lot or you can get more weight and things like that, so its better to have a moderate consume to keep being healthy the way up to a. Chemistry of food fats dietary fat and human health. Discuss synthesis, structures, classification, function and metabolism of lipids. Physicochemical, rheological and functional properties of. Lipid chemistry university of png school of medicine and health sciences discipline of biochemistry and molecular biology bmls ii b pharm ii bds ii vj temple 1. Fats and oils 9599% 14% glycerol deriavatives glycerol free. Palmitic acid, oleic acid, arachidonic acid, linoleic acid, linolenic acid, etc.
Aug 10, 2014 learn the basics about fats and oils, more precisely plant oils. Fats are lipids that are solid at room temperature. Mixed triglycerides are the most common chemical components in fats and oils. Oils and fats important for storing chemical energy in living things.
Pdf from organic chemistry to fat and oil chemistry. Standard methods for the analysis of oils, fats and derivatives. Use and alter these presentations freely or any power point template used in this presentations site for other teachers. Scribd is the worlds largest social reading and publishing site. However, it is increasingly apparent that both the quantity and the quality of the fat consumed are vital to achieving a balanced.
For details concerning this and other methods of testing fats, see standard methods for the sampling and analysis of commercial fats and oils, industrial and engineering chemistry, december 1926, xviii, 46. Chemistry of fats oils and waxes free download as powerpoint presentation. Fats and oils definition fats and oils, group of organic substances that form an important part of the diet and also are useful in many industries. Glycerol with one molecule of fatty acid is calledone molecule of fatty acid is called monoacylglycerol. Ppt wood chemistry pse 406 powerpoint presentation free. Oct 15, 2016 sincere efforts of researchers are underway to understand the functionality of different fats and oils in relation to cookie quality. Fats are solid at room temperature and contain saturated long chain fatty acids 6. Ppt fats powerpoint presentation free to download id. The quality of cookie primarily relies upon the functionality of fats and oils in cookie system which ultimately is combined result of their physical, chemical, and rheological properties. Individual fatty acids can be either saturated or unsaturated and the latter being further subdivided into mono and. Standard methods for the analysis of oils, fats and. This chapter explains that for many fats and oils commonly regarded as single entities, an. Introduction of fats, reaction of fatty acids, reaction of fats or oil.
Definition of fats, oil, fatty acid, reactions of fatty acid, reactions of fats, acid value, saponification value, iodine value, acetyl value and rm value, importance of fats and oil, physical. The iodin number of the commoner fats are given in table 1. Some tropical products, liquids in their sites of origin, become solids in cooler climates. Institut, working group for lipid research, detmold, germany.
Learn the basics about fats and oils, more precisely plant oils. Fats such as beef tallow remain solid or semisolid at room temperature while oils such as olive oil or corn oil are liquid at that temperature. International union of pure and applied chemistry applied chemistry division commission on oils, fats and derivatives standard methods for the analysis of oils, fats and derivatives 1st supplement to the 7th revised and enlarged edition prepared for publication by a. Explain how the fatty acid composition of the triglycerides determines whether a substance is a fat or oil. The characteristic colors, odors, and flavors that we associate with some of them are imparted by foreign substances that are lipid soluble and have been absorbed by these lipids. A lipid is a biological molecule that is soluble in nonpolar organic solvents. Contrary to what you might expect, pure fats and oils are colorless, odorless, and tasteless. A free powerpoint ppt presentation displayed as a flash slide show on id. Triesters of long chain of saturated fatty acids with glycerol. Pharmiii sem presentation pdf available august 2018 with. It does not float through the bloodstream on its own, but in chemical packages called lipoproteins.
Food producers often use hydrogenated fats to give products a longer shelf life and extra flavor. Unfortunately, this book cant be printed from the openbook. Oleic acid, an 18carbon monounsaturated fatty acid. Aug 12, 2019 fats and oils can participate in a variety of chemical reactionsfor example, because triglycerides are esters, they can be hydrolyzed in the presence of an acid, a base, or specific enzymes known as lipases. From organic chemistry to fat and oil chemistry ocl oilseeds and. The fats are usually solid, the oils generally liquid at ordinary room temperatures. Lipids are a group of compounds which are differentiated by their feature of solubility in nonpolar solvents and insolubility in water. Unsaturated fats found in plant foods and fish, these fats are seen as neutral or even beneficial to heart health. Download limit exceeded you have exceeded your daily download allowance.
Aug 04, 2018 physical properties of fats and oil 1. If you need to print pages from this book, we recommend downloading it as a pdf. Effects of some major fats and oils such as butter, bakery fat. Oils solidify only at lower temperaturesin a refrigerator, for example. The rigid fat can collect in clumps in the bloodstream. Chemistry and technology of oils fats top results of your surfing chemistry and technology of oils fats start download portable document format pdf and ebooks electronic books free online rating news 20162017 is books that can provide inspiration, insight, knowledge to the reader. In particular, the ratio of omega6 to omega3 acids should be between 5 and 10 to 1 or less. Triacylglycerols fats and oils store the majority of the energy in most animals and plants. It is an index to the degree of unsaturation of the fat. Oils are liquids at 20c, they contain higher proportion of unsaturated fatty acids 5. Rancidification is the process of complete or incomplete oxidation or hydrolysis of fats and oils.
Overview of lipids, covering fats and oils, saturated and unsaturated fats, triglycerides triacylglycerols, phospholipids, and steroids. Thus, various unsaturated fat vegetable oils, such as olive oils, also contain saturated fat. Oils are lipids that are liquid at room temperature, typically because they consist of unsaturated or short fatty acid chains. This chemical process continues during frozen storage, though more slowly at lower temperature. Wood chemistry pse 406 lecture 14 fatswaxeslignans a free powerpoint ppt presentation displayed as a flash slide show on id. All you need to do is just click on the download link and get it. Saturated, unsaturated and trans fats by prezi user on prezi.
Oils and fats are almost ubiquitous in food processing whether naturally occurring in foods or added as ingredients for functional benefits and, despite the impression given by several sources to the contrary, they remain an essential part of the human diet. Table 11 common fatty acids types of triesters triesters triglycerides 3 carboxylic acids react with. The hydrolysis of fats and oils in the presence of a base is used to make soap and is called saponification. Nov 09, 2003 the purpose of the book is to provide its readers a comprehensive background and information about developments in the areas of fat science and fat technology. Fats and oils plant oils chemistry for all the fuse.
The chemistry and technology of edible oils and fats and. The major commodity fats and oils are soybean, cottonseed, canola, sunflower, corn, peanut, palm kernel, and coconut oils. Ebook chemistry and technology of oils fats as pdf download. Lipids are a distinct group of compounds, including oils, waxes, steroids, fats and similar compounds that are very much connected by their physical property rather than their chemical property. Home science chemistry biochemistry difference between fats. Monounsaturated, found in avocados and olive, peanut, and canola oils. Fats and oils are esters of fatty acids and glycerol. Oxidative rancidity or auto oxidation is the chemical decomposition of fatty. Any color, or taste is due to association with other foreign substances, e.165 189 1240 1122 1020 1421 1540 443 497 1134 740 1181 1061 1589 1032 1319 1272 523 246 288 104 729 1107 1108 357 1209 1137 1087 1293 603 356 950 963 966 1468 142 56 537 896 495 687 1386