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Carbohydrates

Discover Carbohydrates: 455 flashcards with questions and answers.

Subject
Sciences / Chemistry
Language of creation
English
455 flashcards No ratings yet 0 views
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Cards in this set

Card 121

Question

Which enzymes are used for corn syrup production?

Answer

Alpha amylase and glucoamylase (followed by glucose isomerase if it is high fructose corn syrup)

Card 122

Question

What type of bond is cleaved by pullanase?

Answer

Alpha-1, 6 glycosidic bond

Card 123

Question

What does AACC stand for wrt cereals technology?

Answer

American Association of Cereal Chemists

Card 124

Question

Why do seed proteins like soy protein have a low isoelectric point?

Answer

Amino acid compositions rich in acidic residues (such as glutamic and aspartic acids)

Card 125

Question

What enzyme breaks down starch into maltose?

Answer

Amylase

Card 126

Question

What is the key enzyme responsible for converting starch to fermentable sugars (like maltose) in the brewing process?

Answer

Amylase (alpha-amylase or beta-amylase)

Card 127

Question

What type of carbohydrate is starch composed of?

Answer

Amylose and amylopectin.

Card 128

Question

Name the monomeric unit of amylose and amylopectin and give the linkages for each type.

Answer

Amylose: glucose; alpha 1-4 linkage; Amylopectin: glucose, alpha 1-4 and 1-6 linkages

Card 129

Question

Which starch component contributes most to gel strength in cooked starch systems?

Answer

Amylose.

Card 130

Question

Give one word for a carbon atom involved in hemiacetal or acetal formation.

Answer

Anomeric

Card 131

Question

Tortilla azul, or blue tortillas, get their color from which compound?

Answer

Anthocyanins from blue corn

Card 132

Question

Lignans which are found in flax seed, wheat bran, oats and barley can demonstrate which health benefit?

Answer

Anticancer and phytoestrogen properties

Card 133

Question

What is the name of viscous liquid in which legumes have been washed?

Answer

Aquafaba/fava

Card 134

Question

Most carbohydrates exist in their D form in nature, name the carbohydrate is primarily found in L form.

Answer

Arabinose

Card 135

Question

Most carbohydrates exist in their D-form in nature. What carbohydrate is primarily found in its L-form?

Answer

Arabinose

Card 136

Question

Gum arabic is composed of which monosaccharides?

Answer

Arabinose and galactose

Card 137

Question

What sweeteners are used in Coke Zero?

Answer

Asparatame, acesulfame potassium, stevia extract

Card 138

Question

What artificial sweetener does the number E951 refer to?

Answer

Aspartame

Card 139

Question

The artificial sweetener which is also a dipeptide?

Answer

Aspartame

Card 140

Question

This sweetener has about 150-250 times the sweetness power of sucrose and is a dipeptide of aspartic acid and phenylalanine.

Answer

Aspartame

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