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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 201

Question

What artificial sweetener is banned in the U.S. but is approved for use in Canada?

Answer

Cyclamates- banned in US in 1969

Card 202

Question

Methyl cellulose dissolves faster at what temperature?

Answer

Decreased temperature, increase dissolution

Card 203

Question

With respect to pectin, what does DE refer to and what does it indicate?

Answer

Degree of esterification. This term indicates the percentage of galacturonic acid molecules in pectin that are esterified (have a methyl group attached). Pectin is classified as either high methoxyl pectin (HMP) with a DE greater than 50%, or low methoxyl pectin (LMP) with a DE less than 50%.

Card 204

Question

What is a dextran?

Answer

Dextran is a polysaccharide, or complex carbohydrate, made up of glucose molecules. Dextran's main chain consists of glucose units linked by α-(1→6) glycosidic bonds. It also has branches, which are linked by α-(1→3) bonds. It's produced by bacteria like Leuconostoc mesenteroides, and is used in various applications including medical treatments, food additives, and as a component in dental plaque.

Card 205

Question

What does DE stand for in corn syrup and what does it measure?

Answer

Dextrose equivalent. It's a measure of the amount of reducing sugars, particularly dextrose, present in the corn syrup. A higher DE value indicates a higher percentage of dextrose and, generally, a sweeter syrup.

Card 206

Question

Plant carbohydrates that are resistant to hydrolysis by the endogenous enzymes of the human digestive tract are more commonly known as what?

Answer

Dietary fiber

Card 207

Question

What is the difference between dietary fiber and crude fiber?

Answer

Dietary fiber consists of all material that is physiologically indigestible by the human intestine and crude fiber is anything that survives a strong acid digestion by a strong base digestion (in vitro).

Card 208

Question

What is a germplasm in a grain?

Answer

DNA containing part of the grain

Card 209

Question

What term refers to the measure of foreign material present in grain sample?

Answer

Dockage

Card 210

Question

Name the 2 types of milling used for corn.

Answer

Dry and wet

Card 211

Question

What type of wheat is used to make pasta?

Answer

Durum

Card 212

Question

What sort of high gluten flour is used for making pasta?

Answer

Durum flour

Card 213

Question

One cob of corn is commonly known as?

Answer

Ear

Card 214

Question

The portion of the cereal grain that contains starch granules and protein bodies is called

Answer

Endosperm

Card 215

Question

From what part of the wheat, corn, rice, or oats are most breakfast cereals made?

Answer

Endosperm

Card 216

Question

Which part of grain kernel contains starch?

Answer

Endosperm

Card 217

Question

The outer layer of a grain kernel, which is rich in fiber and B vitamins, is known as the bran. Name the other two main parts of a kernel.

Answer

Endosperm and Germ

Card 218

Question

Name the three main components of cereal grains.

Answer

Endosperm, germ, bran

Card 219

Question

One method of destroying insect eggs in flour is to throw the flour with high impact against a hard surface as in a centrifuge type machine. What is the name of this machine?

Answer

Entoleter

Card 220

Question

What is the name of the equipment used to puff cereal grains?

Answer

Extruder (Gun)

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