1 Introduction The Maillard reaction (often defined as nonenzymatic browning reaction) is a chemical reaction betwe
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Introduction
The Maillard reaction (often defined as nonenzymatic browning reaction) is a chemical reaction between amino acids and reducing sugars that gives browned food its distinctive flavor.
Reducing sugar is any sugar that is capable of acting as a reducing agent because it has a free aldehyde group or aReducing free form ketone group. of glucose (the aldehyde group is on the far right) 2
Introduction (contd.)
Caramelization is the browning of sugar, a process used extensively in cooking for the resulting sweet nutty flavor and brown color. The brown colours are produced by three groups of polymers: caramelans (C24H36O18), caramelens (C36H50O25), and caramelins (C125H188O80). Caramelization is pyrolytic process, is a thermal decomposition of materials at elevated temperatures in an inert atmosphere such as a vacuum or nitrogen gas. 3
Benefits and Losses Some Millard Reaction Process particularly melanoidins have beneficial effects on health such as antioxidative and antibiotic effects. Millard Reaction Process such as high carboxymethyl lysine (CML) promote diabetes and cardiovascular diseases while acrylamide acts as a carcinogen.
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Inhibit Millard Reaction Process Avoid the critical water content (water activity that cause non-enzymatic browning, aw:0.2) Use non-reducing sugar
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