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carbohydrates-ppt-1416cdocx.pptx - Carbohydrates and their...

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© Food – a fact of life 2019Carbohydrates and theirfunctional properties infood products
© Food – a fact of life 2019Carbohydrates in foodMany foods contain some carbohydrates, but the amounts ofsugars, starch and fibre differ.Sugars are naturally present in foods such as milk, fruits,vegetables and honey. In the UK, sugar beet and sugar caneare the most common sources of sugar. Honey, treacle andgolden syrup are also popular.Starch is present in foods such as potatoes, bread, rice andpasta.
© Food – a fact of life 2019The structure of carbohydratesAll carbohydrates are compounds of the elementscarbon, hydrogen and oxygen and have thegeneral formula (CH2O)n.e.g. glucose (CH2O)6= C6H12O6.Another name for carbohydrates is ‘saccharides’.
© Food – a fact of life 2019The structure of carbohydratesCarbohydrates (saccharides) can be divided into three main groups:monosaccharides;disaccharides;polysaccharides.
© Food – a fact of life 2019MonosaccharidesThese are the simplest carbohydrate molecules.The most commonly occurring monosaccharides in food areglucose, fructose and galactose.The formula for glucose is C6H12O6.
© Food – a fact of life 2019DisaccharidesThese are formed when two monosaccharide molecules join

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Glucose, Carbohydrate, Sucrose

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