Denaturation of Enzymes Factors that Denature Enzymes n

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Denaturation of Enzymes

Denaturation of Enzymes

Factors that Denature Enzymes n n Enzymes are proteins. Denaturation: n n n changes

Factors that Denature Enzymes n n Enzymes are proteins. Denaturation: n n n changes the structure of the protein stops enzyme activity Enzymes denatured by: n n heat p. H salts enzyme inhibitors B-3. 03 -- Denaturation of Enzymes 2

Heat n Enzymatic reaction rates increase as temperature increases. n n Denaturation occurs at

Heat n Enzymatic reaction rates increase as temperature increases. n n Denaturation occurs at 104°F or hotter. Too much heat slows and stops enzyme activity. n n Heating can destroy enzymes that alter food quality. Example -- blanching vegetables to prevent spoilage during frozen storage. B-3. 03 -- Denaturation of Enzymes 3

p. H n p. H and rate of enzymatic reaction n n p. H

p. H n p. H and rate of enzymatic reaction n n p. H and denaturation of enzymes n n n Specific to each enzyme Optimal p. H range. Most enzymes will denature if p. H is too high or too low. Changing the p. H can speed up, slow, or stop enzymatic reactions n Lemon juice to apples B-3. 03 -- Denaturation of Enzymes 4

Salts n Salt is commonly used in food production n n Binds to enzymes

Salts n Salt is commonly used in food production n n Binds to enzymes in food that cause spoilage Changes the water activity B-3. 03 -- Denaturation of Enzymes 5

Enzyme Inhibitors n Substance that will prevent the enzymesubstrate complex n n Naturally occurring

Enzyme Inhibitors n Substance that will prevent the enzymesubstrate complex n n Naturally occurring n n n Enzymatic reactions slowed or stopped. Egg whites Pesticides that are naturally part of a plant structure Synthetic compounds B-3. 03 -- Denaturation of Enzymes 6

DENATURATION OF PROTEIN DENATURATION Denaturation is a processDENATURATION OF PROTEIN DENATURATION Denaturation is a process
Protein Denaturation FDSC 400 Goals Denaturation Balance ofProtein Denaturation FDSC 400 Goals Denaturation Balance of
Protein Denaturation Goals Denaturation Balance of forces ConsequencesProtein Denaturation Goals Denaturation Balance of forces Consequences
ENZYMES ENZYMES Speedy Proteins IMPORTANCE OF ENZYMES EnzymesENZYMES ENZYMES Speedy Proteins IMPORTANCE OF ENZYMES Enzymes
Enzymes Enzymes What are enzymes How are enzymesEnzymes Enzymes What are enzymes How are enzymes