Proteins: Building Blocks and Culinary Applications
Proteins are essential for our bodies, with denaturation and coagulation playing key roles in cooking. The structure of proteins involves chains of amino acids forming different shapes that determine their functions. Denaturing of proteins through heat, chemicals, enzymes, and mechanical force can reshape them. Culinary applications include tenderizing meat, transforming egg whites, and making cheese. The combination of denaturation and coagulation is used in various cooking techniques to break down and reform protein structures. Heat is a common factor in denaturation, leading to changes in appearance and texture in foods like egg whites and meat.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
Protein The building blocks of our bodies
We will learn about : Denaturation and Coagulation How this happens The culinary applications how we use these properties in cooking
The Structure of Proteins Proteins are large chains of amino acids that join together to form different shapes. The shapes that are formed determine the function of each protein. The bonds that cause them to link, coil and fold can be broken to form other shapes.
Denaturing of Proteins We ve see how amino acids come together to form long chains, helixes, pleated sheets and 3D shapes to form proteins. The bonds that give proteins their shape can be broken apart and reshaped by heat, chemicals, enzymes and mechanical force. This is called denaturation and coagulation. Meat tenderized by vinegar Raw egg white beaten into new form Egg raw V cooked Cheese made from milk by adding rennin
Denaturing & Coagulation We use denaturation and coagulation in many culinary applications. We apply heat, acids like lemon juice, mechanical force (by beating) and enzymes (rennin) to break up protein structures, that then reform. DENATURATION COAGULATION
Denaturing & Coagulation DENATURATION COAGULATION Heat makes egg whites change from translucent to opaque at 60 C and egg yolk to coagulate at 68 C
Denaturing & Coagulation DENATURATION COAGULATION Heat makes meat shrink and lose water
Denaturing & Coagulation DENATURATION Collagen COAGULATION Gelatine Meat is tenderized by moist heat
Denaturing & Coagulation DENATURATION & COAGULATION of Amino Acids and Sugars to add colour, aroma and flavour. The Maillard reaction at 140 to 165 C degrees
Denaturing & Coagulation Gravlax Ceviche Fish cooked by the acid in lemon juice
Denaturing & Coagulation Vinegar to tenderise meat Baking soda to tenderise meat Acids and Alkalis to tenderise meat
Denaturing & Coagulation Mechanical action like whipping egg whites or cream causes proteins to denature and partially coagulate
Denaturing & Coagulation The enzyme rennin causes milk to coagulate into curd in cheesemaking
Acknowledgements Slide 5 - thespruceeats.com , allrecipes.com , justapinch.com Slide 4 - https://www.tncp.net/Portals/21/2011/Beef%20stew.JPG Slide 3 becomingbettercook.com Slide 9 - https://foodcrumbles.com/wp-content/uploads/2017/06/tilapia-ceviche-from-lime-lemon-and-orange-juice-scaled.jpg and https://encrypted- tbn0.gstatic.com/images?q=tbn:ANd9GcQsYYSUwmSBBdUA4jVLbFKDVr7LoVkx7HX8zw&usqp=CAU Slide 10 - https://www.recipetineats.com/wp-content/uploads/2015/03/How-to-Tenderise-Beef-Chinese-Method.jpg?w=206&h=206&crop=1 and thrivemarket.com Slide 11 incredibleegg.org , errenskitchen.com , quora.com , cookidoo.com.cn , supergoldenbakes.com Slide 12 - healthline.com , cheesemaking.com , allrecipes.com
