PPT-Qualitative tests of lipids 2

Derived lipids They are substances that are soluble in lipid or derived from the lipids by hydrolysis for examples cholesterol and fat soluble vitamins Fatty Acids Classification asaturated . Dr. Huda Hania. Lipid chemistry . Lipid chemistry . Definition . Fats and Oils (triglyceride) . Waxes. Steroids. Fat- soluble vitamins. Phospholipid. Mono- di glycerides . Lipid compounds including: . Fats and Oils. Classification of Nutrients. Carbohydrates. Lipids. – . 9 calories per gram. Protein. Vitamins. Minerals. Water. LIPIDS. Most . concentrated. source of food energy. Provide . Nature’s 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: . 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. 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. Now you are ready to undertake the evaluation. This will normally include:. Collecting data. Analysing data. The type of data you want to collect will depend on your outcome measures. As a general guide, data can be categorised as being either . nonpolar. organic compound insoluble in polar solvent , but . soluble in organic solvents. such as benzene ,ether, chloroform.. Biological role of lipids. :. Lipids are found naturally in all living organisms.. -II-. BCH302 [Practical]. Saturated . Fatty Acids:.  . Fatty . acids have . no double bonds . ,. side chain. are (alk. ane. ).. a. ) Short . chain:. From 4 to 10 Carbon atoms . ,and present as . liquid. 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 . Cholesterol. Rich in hydrocarbon. Polar group (usually small). Oleic acid. Lipids serve a wide variety of functions. Vitamin K. Surfactants. Protection. Membrane. components. Insulation. Energy storage. Synthesis of 1-Iodobutane. Nucleophilic Substitution of Alkyl Halides:. Synthesis of 1-Iodobutane. 1-Bromobutane is a primary alkyl halide (not sterically hindered).. Acetone . is a polar aprotic solvent. It poorly solvates the iodide nucleophile, . are a diverse group of compounds that are insoluble in water but soluble in organic solvents such as ethanol.. The most common types of lipid are . triglycerides. (sometimes known as true fats or neutral fats), but other important lipids include waxes, steroids and cholesterol.. are a large and diverse group of naturally occurring organic compounds that share some general . properties. .. General Properties of Lipids. Insoluble . in water.. Soluble in non-polar organic solvents .