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It is not surprising that still more firms, in addition to Kraft and Procter and Gamble, are entering the race for these consumer dollars. Marian Segal is a member of FDA's public affairs staff. Hypertext alkene updated by rwk/j3b/dms 1998-MAY-10 Lipids: Fats, Oils, Waxes, etc. All Lipids are hydrophobic: that’s the one property they have in common. This group of molecules includes alkene fats alkene and oils, waxes, phospholipids, steroids (like cholesterol), and some other related compounds. Fats and oils are made from two kinds of molecules: glycerol (a type of alcohol with a hydroxyl group on each of its three carbons) and three fatty acids joined by dehydration synthesis. Since there are three fatty acids attached, these are known as triglycerides. “Bread” and pastries from a “bread factory” often contain mono- and diglycerides as “dough conditioners.” Can you figure out what these molecules would look like? The main distinction between fats and oils is whether they’re solid or liquid at room temperature, and this, as we’ll soon see, is based on differences in the structures of the fatty acids they contain.
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