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Questions and Answers
Which sugar is the main sugar found in grapes and sugar cane/molasses?
Which sugar is the main sugar found in grapes and sugar cane/molasses?
- Glucose
- Maltose
- Fructose
- Sucrose (correct)
What is the main source of sugars in cereals?
What is the main source of sugars in cereals?
- Sucrose
- Glucose
- Maltose
- Starch (correct)
Which sugars are the main ones produced by the conversion of cereal grains' starch into glucose during germination?
Which sugars are the main ones produced by the conversion of cereal grains' starch into glucose during germination?
- Dextrins and maltotriose
- Sucrose and maltose
- Glucose and fructose
- Maltose and maltotriose (correct)
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Study Notes
- Sucrose is the main sugar in grapes and sugar cane/molasses, easily fermented by yeast.
- Cereals are a major source of sugars, but their starch must be processed into glucose or smaller units.
- Cereal grains' starch is converted into glucose during germination, which can take weeks.
- Brewers and distillers accelerate this process by malting or using enzymes.
- Maltose and maltotriose are the main sugars produced.
- Free glucose is also created but in lower quantities.
- Dextrins cannot be fermented.
- Cereals require more processing than grapes or sugar cane.
- Cereals yield a less than 100% fermentable extract.
- Yeast cannot absorb breakdown products larger than maltose and maltotriose.
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