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  2. Maltose - Wikipedia

    en.wikipedia.org/wiki/Maltose

    Maltose (/ ˈ m ɔː l t oʊ s / [2] or / ˈ m ɔː l t oʊ z / [3]), also known as maltobiose or malt sugar, is a disaccharide formed from two units of glucose joined with an α(1→4) bond. In the isomer isomaltose , the two glucose molecules are joined with an α(1→6) bond.

  3. Lactose - Wikipedia

    en.wikipedia.org/wiki/Lactose

    Lactose, or milk sugar, is a disaccharide composed of galactose and glucose and has the molecular formula C 12 H 22 O 11.Lactose makes up around 2–8% of milk (by mass). The name comes from lact (gen. lactis), the Latin word for milk, plus the suffix -ose used to name sugars.

  4. Disaccharide - Wikipedia

    en.wikipedia.org/wiki/Disaccharide

    For example, milk sugar (lactose) is a disaccharide made by condensation of one molecule of each of the monosaccharides glucose and galactose, whereas the disaccharide sucrose in sugar cane and sugar beet, is a condensation product of glucose and fructose. Maltose, another common disaccharide, is condensed from two glucose molecules. [7]

  5. Sugar - Wikipedia

    en.wikipedia.org/wiki/Sugar

    Lactose, maltose, and sucrose are all compound sugars, disaccharides, with the general formula C 12 H 22 O 11. They are formed by the combination of two monosaccharide molecules with the exclusion of a molecule of water. [72] Lactose is the naturally occurring sugar found in milk. A molecule of lactose is formed by the combination of a molecule ...

  6. Monosaccharide - Wikipedia

    en.wikipedia.org/wiki/Monosaccharide

    Monosaccharides are the building blocks of disaccharides (such as sucrose, lactose and maltose) and polysaccharides (such as cellulose and starch). The table sugar used in everyday vernacular is itself a disaccharide sucrose comprising one molecule of each of the two monosaccharides D-glucose and D-fructose. [2]

  7. Galactose - Wikipedia

    en.wikipedia.org/wiki/Galactose

    The hydrolysis of lactose to glucose and galactose is catalyzed by the enzymes lactase and β-galactosidase. The latter is produced by the lac operon in Escherichia coli. [12] In nature, lactose is found primarily in milk and milk products. Consequently, various food products made with dairy-derived ingredients can contain lactose. [13]

  8. Reducing sugar - Wikipedia

    en.wikipedia.org/wiki/Reducing_sugar

    Reducing disaccharides like lactose and maltose have only one of their two anomeric carbons involved in the glycosidic bond, while the other is free and can convert to an open-chain form with an aldehyde group. The aldehyde functional group allows the sugar to act as a reducing agent, for example, in the Tollens' test or Benedict's test.

  9. Carbohydrate - Wikipedia

    en.wikipedia.org/wiki/Carbohydrate

    Lactose, a disaccharide composed of one D-galactose molecule and one D-glucose molecule, occurs naturally in mammalian milk. The systematic name for lactose is O-β-D-galactopyranosyl-(1→4)-D-glucopyranose. Other notable disaccharides include maltose (two D-glucoses linked α-1,4) and cellobiose (two D-glucoses linked β-1,4). Disaccharides ...