PPT-LIPIDS

Natures flavor enhancer lipids vs carbohydrates both Contain carbon hydrogen and oxygen LIPIDS do not dissolve in water provide structure to food products lipids Food Examples . Lipids are….. It can be defined as . nonpolar. organic compound insoluble in polar solvent , but . soluble in organic solvents. such as benzene ,ether, . chloroform.. Biological role of lipids. :. Lipids. Essential . macronutrients. Provide . energy. Building blocks for cell membranes. Form many important hormones. Help transport fat-soluble nutrients. Contribute to flavor and texture of . food. Lipids are relatively insoluble in water.. They are soluble in . nonpolar. solvents such as chloroform , diethyl ether, acetone, benzene and ether.. The hydrophobic (water hating) nature of lipids is due to the predominance of hydrocarbon chain.(-CH2-CH2-CH2-) in their structure. Lipids are non-polar. (hydrophobic) . organic compounds, insoluble in water, . soluble in organic . solvents (ether, acetone, . carbontetrachloride. ). . They contain carbon, hydrogen, and oxygen; sometimes nitrogen and phosphorus. . 3.4 What Are Lipids?. Lipids. are a diverse group of molecules that contain regions composed almost entirely of hydrogen and carbon. All lipids contain large chains of nonpolar hydrocarbons. Most lipids are therefore hydrophobic and water insoluble. Lipid chemistry . Lipid chemistry . Definition . Fats and Oils (triglyceride) . Waxes. Steroids. Fat- soluble vitamins. Phospholipid. Mono- di glycerides . Lipid compounds including: . Classification of Lipids. Pratt & . Cornely. , . Ch. 8. Lipids and Membranes. There is a lot of important biochemistry of lipids.. We won’t cover it all!. The key points for this class have to do with their role in membranes and fat metabolism. CHAPTER 10. UNIT. TARGETS. DESCRIBE THE MOLECULAR STRUCTURE 3 types of lipids: GLYCERIDES, PHOSHOLIPIDS, AND STEROLS. DEFINE SATURATED, MONOSATURATED AND POLYUNSATURATED FATTY ACIDS.. LIST CATEGORIES OF LIPIDS BASED ON PHYSICAL STATE AND DIETARY SOURCES. Lipids. …. a category of organic compounds that are insoluble in water and have a greasy feel.. Pringles. Calories. Fat. Satur-ated. Fat. Cost. Regular Pringles. 150. 9. 2.5. $1.00. Light Pringles. Lipids are a family of chemical compounds that are a main component in every living cell. They include the following three categories:. Triglycerides. – they include all fats and oils people typically eat.. Lipids are hydrophobic or amphipathic small molecules that may originate entirely or in part by carbanion-based condensations of thioesters (fatty acids, polyketides, etc.) and/or by carbocation-based condensations of isoprene units . What are the main classes of . lipids?. Where are they found in the cell?. Where did they come from?. Lipids Classes. Fatty acids. Free (toxic unless esterified). Esterifed. in . glycerophospholipids. Examples of Common Lipids. There are many different types of lipids. Examples of common lipids include butter, vegetable oil, cholesterol and other steroids, waxes, phospholipids, and fat-soluble vitamins. The common characteristic of all of these compounds is that they are essentially insoluble in water yet soluble in one or more organic solvents. . DR. SHAIMAA MUNTHER. LIPIDS CHEMISTRY . The term “lipids” applies to a class of compounds that are soluble in organic solvents (e.g. alcohol and chloroform) and insoluble in water. . Lipids are essential components of every living cell. .