Enzymes in Dairy and Starch Industries

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Questions and Answers

What function does papain serve in personal care products?

Accelerates hair growth

Increases moisture retention in hair

Enhances skin's natural glow

Breaks down keratin protein for smoother skin (correct)

Which enzyme is utilized to improve the clarity of fruit juices by breaking down pectin?

Pectinase (correct)

Arabanases

Lipases

Glucose oxidase

What is the role of glucose oxidase in the baking industry?

Enhances dough elasticity

Increases shelf life by removing oxygen (correct)

Improves flavor stability during baking

Breaks down starch into sugar

Which enzyme acts on triglycerides in baking to improve bread volume and avoid rancidity?

Lipases Signup and view all the answers

What action does rennin perform in the dairy industry?

Hydrolyzes peptide linkages in milk Signup and view all the answers

What is the primary role of lactases in the dairy industry?

Break down lactose into glucose and galactose Signup and view all the answers

Which enzyme is involved in converting sucrose into glucose and fructose in the starch industry?

Invertase Signup and view all the answers

What is the function of proteases in the leather manufacturing industry?

Dissolve intra fibrillary proteins to enhance water uptake Signup and view all the answers

What type of bonds does α-Amylase act on within starch molecules?

α-1,4 linkages randomly Signup and view all the answers

Which enzyme is specifically associated with enhancing flavor in dairy products?

Lipases Signup and view all the answers

What is the primary function of proteases in the detergent industry?

Break down proteins into soluble polypeptides Signup and view all the answers

Which enzyme is responsible for hydrolyzing glycosidic linkages in starch processing?

Amylases Signup and view all the answers

What role does catalase play in personal care products?

Degrades hydrogen peroxide Signup and view all the answers

Which enzyme in toothpaste is responsible for reducing bacteria spread?

Glucose oxidase Signup and view all the answers

What is the function of diacylglycerol acyltransferase in skin and hair care products?

Increases action of retinoic acid Signup and view all the answers

What is the primary focus of the content discussed?

Effective multiple choice question design Signup and view all the answers

Which of the following is NOT a guideline for constructing the stem of a question?

The stem should be negatively stated. Signup and view all the answers

What should be avoided when crafting options for a multiple choice question?

Including other phrases from the content Signup and view all the answers

How can distractors in a multiple choice question be effectively utilized?

By representing common student misconceptions Signup and view all the answers

What is a critical aspect of selecting the correct answer in a multiple choice question?

It should be the best answer that clearly aligns with the intended learning outcome. Signup and view all the answers

Which enzyme is primarily responsible for hydrolyzing fats in detergents?

Lipase Signup and view all the answers

What is the estimated market size for biopharmaceutical enzymes?

$800 million Signup and view all the answers

Which of the following is NOT an application of enzymes?

Plastic manufacturing Signup and view all the answers

What percentage of enzyme usage is attributed to the detergent industry?

34% Signup and view all the answers

How do enzymes in nutraceuticals primarily benefit consumers?

Through improving flavor and reducing allergic reactions Signup and view all the answers

Which enzyme is primarily used for breaking down proteins in the detergent industry?

Protease Signup and view all the answers

What is the estimated market size for the enzyme industry related to food and beverages?

$1 billion Signup and view all the answers

Which enzyme's primary function does NOT involve a hydrolysis reaction?

Polymerases Signup and view all the answers

Which enzyme is involved in the treatment processes within the pulp and paper industry?

Cellulases Signup and view all the answers

Which industry utilizes enzymes to enhance the cleaning ability of detergents?

Detergents Signup and view all the answers

Study Notes

Dairy Industry

Renin hydrolyzes the peptide linkage between phenylalanine and methionine.
Renin also causes Ca2+ induced aggregation.
Lipases hydrolyze ester bonds between glycerol backbone and fatty acids.
Proteases make yogurt products creamier.
Proteases also hydrolyze whey proteins and make dairy products less allergenic.
Lactase breaks down lactose into glucose and galactose.

Starch Industry

Amylase is an endo enzyme that acts randomly on α-1,4 linkages.
Amylase ultimately generates glucose, maltose, and maltotriose.
Isomerases convert sugars to more sweeter fructose sugars.
Isomerases are used in sugar syrups.
Invertase is used in starch industries which convert sucrose into glucose & fructose
Lactase acts on lactose and converts it into glucose and galactose.

Enzymes in Leather Manufacture

Proteases enhance water uptake by dissolving intra fibrillary proteins that cement the fibers together and prevent water penetration.
Lipases are used to disperse fats as an alternative to degreasing with solvents.
These enzymes hydrolyze surface fats and those within the structure of the hides and skins, but without causing any physical damage.

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Description

Test your knowledge on the role of enzymes in the dairy and starch industries! This quiz covers key enzymes like renin, amylase, and proteases, and their functions in producing yogurt, digesting lactose, and converting starch into sugars. Explore how these biological catalysts impact food production and quality.