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Lecithins in Food and Biology

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Questions and Answers

What is the primary function of lecithin in food?

Add color

Increase nutritional value

Enhance flavor

Improve texture (correct)

Which of the following is NOT a source of lecithin?

Soybeans

Egg yolk

Beef (correct)

Sunflower oil

How is lecithin extracted chemically?

Using ethanol as a solvent (correct)

Using vinegar as a solvent

Using milk as a solvent

Using water as a solvent

What structures can the phospholipids in lecithin form in aqueous solution?

Liposomes Signup and view all the answers

What property classifies lecithin as a surfactant?

Amphipathic Signup and view all the answers

What role does lecithin play in cooking?

Emulsifying mixtures Signup and view all the answers

What is the solubility of lecithin in water?

Low solubility Signup and view all the answers

What type of substances are lecithins, based on their ability to attract both water and fatty substances?

Amphiphilic Signup and view all the answers

Which of the following is NOT a glycerophospholipid component of lecithin?

Phosphatidylmethionine Signup and view all the answers

What is the primary purpose of lecithin in emulsifying liquid mixtures?

Smoothing textures Signup and view all the answers

Which solvent is NOT commonly used for chemically extracting lecithin?

Methanol Signup and view all the answers

Lecithins in Food and Biology

Choose a study mode

Podcast

Questions and Answers

What is the primary function of lecithin in food?

Which of the following is NOT a source of lecithin?

How is lecithin extracted chemically?

What structures can the phospholipids in lecithin form in aqueous solution?

What property classifies lecithin as a surfactant?

What role does lecithin play in cooking?

What is the solubility of lecithin in water?

What type of substances are lecithins, based on their ability to attract both water and fatty substances?

Which of the following is NOT a glycerophospholipid component of lecithin?

What is the primary purpose of lecithin in emulsifying liquid mixtures?

Which solvent is NOT commonly used for chemically extracting lecithin?

In what structures can the phospholipids of lecithin NOT form in aqueous solution?

Which of the following oils is NOT a common source of lecithin?

What type of surfactant is lecithin usually classified as?

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