Showing posts with label saponification value. Show all posts
Showing posts with label saponification value. Show all posts

March 27, 2013

Laboratory Report Sheet-2

Laboratory Report Sheet of "Extraction and Characterization of Lipids" experiment. I hope it will be useful.

Document

Extraction and Characterization of Lipids



There are some key factors which determine the chemical and physical properties of fats and oils include the degree of unsaturation or iodine value, the type of unsaturation (cis or trans), and the weight-average molecular weight or saponification number. Fats and oils commonly undergo processes such as hydrogenation, oxidation; which modify the physical and chemical characteristics of fats and oils by changing the iodine value and cis/trans ratio, for which specific values are often targeted. Hence monitoring changes in these values during a process is important because they define the quality of the end product. In addition, the trans content may be limited by regulations because of its association with heart disease and may be a required analysis for labeling. (Li, van de Voort, Sedman & Ismail, 1999)