FD SC 2140 Lecture Notes - Lecture 4: Activation Energy, Maltase, Lactase
12 Jul 2018
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Document Summary
Chapter 4: food chemistry i: functional groups and properties, water, and acids. 4. 1 the nature of matter: elements are the simplest type of pure substance that has mass and cannot be broken down into something else. Compounds are two or more elements chemically bonded together in definite proportions by weight. A mixture is two or more substances that are combined physically rather than chemically: chemical bonds are the forces that hold atoms and molecules together. 4. 2 chemical reactions in foods: composition reaction is when two or more substances are combined into a single product, and are important in macromolecules that are produced this way in nature, and sometimes during processing. They are specialized protein molecules polypeptides composed of amino acids and are known as biological catalysts. They catalyze reactions specific for particular substrates: activation energy is the amount of energy needed to convert substrate molecules from the ground or baseline state to the es complex.
