galactosiden.

Brit.

/ɡəˈlaktə(ʊ)sʌɪd/, U.S.

/ɡəˈlæktoʊˌsaɪd/

Origin: Formed within English, by derivation; modelled on a French lexical item. Etymons: galactose n., -ide suffix.

Etymology: < galactose n. + -ide suffix, after French galactoside ( M. Berthelot Chim. org. fondée sur la synthèse (1860) II. iii. iii. 286). Compare German Galactoside (1862 in the passage translated in quot. 1862, or earlier; now also Galaktoside).

Chemistry.

Any glycoside in which the sugar is galactose.Galactosides consist of galactose (which adopts a cyclic structure) bonded to another molecule (the aglycone). Bonding can take place on either side of the plane of the galactose molecule, giving stereoisomeric forms known as α- and β-galactosides.

ΘΚΠ

the world > matter > chemistry > organic chemistry > carbohydrates > sugars > [noun] > glycosides > named > others

jalapin1832

rhaponticin1834

struthiin1835

menyanthin1842

quercitric acid1844

rhodeoretin1845

helicin1848

rutic acid1848

morindin1849

panaquilon1858

galactoside1862

parillic acid1864

thujin1868

digitoxin1875

margarin1878

naringin1879

teucrin1881

condurangin1885

scopolin1885

linamarin1892

arabinoside1893

picein1894

rhamnoside1894

mannoside1897

saponaretin1905

pentoside1910

prunitrin1910

prunasin1912

leucoanthocyanin1920

pyranoside1930

stevioside1931

furanoside1932

hecogenin1943

1862 H. Watts tr. L. Gmelin Hand-bk. Chem. XV. 317 He [sc. Berthelot] then subdivides the saccharides into—glucosides..; levulosides..; galactosides [Ger. Galactoside].

1934 C. C. Steele Introd. Plant Biochem. iii. viii. 74 Several galactosides occur in the saponin group of glycosides and in the anthocyanin pigments.

1975 Sci. Amer. Jan. 82/3 The molecule bears a close resemblance to two common plant galactosides: melibiose..and raffinose.

2001 Ann. Bot. 88 957/1 Globosides and galactosides are cerebrosides that contain additional carbohydrates.

Derivatives

galactoˈsidic adj. of, relating to, or of the nature of a galactoside.

ΚΠ

1926 Biochem. Jrnl. 20 827 The galactosidic residue of the cerebrosides is therefore similar to the sugar residue of all the naturally occurring glucosides so far examined.

1942 Bot. Gaz. 104 335/2 The galactosidic linkages may be folded into the structure in such a way that they cannot readily make contact with the enzyme.

1996 H.-M. Eun Enzymol. Primer for Recombinant DNA Technol. viii. 568 Galactosidases..specifically catalyze the hydrolysis of galactosidic linkages in various oligosaccharides.

This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022).

单词	galactoside
释义	galactosiden. Brit. /ɡəˈlaktə(ʊ)sʌɪd/, U.S. /ɡəˈlæktoʊˌsaɪd/ Origin: Formed within English, by derivation; modelled on a French lexical item. Etymons: galactose n., -ide suffix. Etymology: < galactose n. + -ide suffix, after French galactoside ( M. Berthelot Chim. org. fondée sur la synthèse (1860) II. iii. iii. 286). Compare German Galactoside (1862 in the passage translated in quot. 1862, or earlier; now also Galaktoside). Chemistry. Any glycoside in which the sugar is galactose.Galactosides consist of galactose (which adopts a cyclic structure) bonded to another molecule (the aglycone). Bonding can take place on either side of the plane of the galactose molecule, giving stereoisomeric forms known as α- and β-galactosides. ΘΚΠ the world > matter > chemistry > organic chemistry > carbohydrates > sugars > [noun] > glycosides > named > others jalapin1832 rhaponticin1834 struthiin1835 menyanthin1842 quercitric acid1844 rhodeoretin1845 helicin1848 rutic acid1848 morindin1849 panaquilon1858 galactoside1862 parillic acid1864 thujin1868 digitoxin1875 margarin1878 naringin1879 teucrin1881 condurangin1885 scopolin1885 linamarin1892 arabinoside1893 picein1894 rhamnoside1894 mannoside1897 saponaretin1905 pentoside1910 prunitrin1910 prunasin1912 leucoanthocyanin1920 pyranoside1930 stevioside1931 furanoside1932 hecogenin1943 1862 H. Watts tr. L. Gmelin Hand-bk. Chem. XV. 317 He [sc. Berthelot] then subdivides the saccharides into—glucosides..; levulosides..; galactosides [Ger. Galactoside]. 1934 C. C. Steele Introd. Plant Biochem. iii. viii. 74 Several galactosides occur in the saponin group of glycosides and in the anthocyanin pigments. 1975 Sci. Amer. Jan. 82/3 The molecule bears a close resemblance to two common plant galactosides: melibiose..and raffinose. 2001 Ann. Bot. 88 957/1 Globosides and galactosides are cerebrosides that contain additional carbohydrates. Derivatives galactoˈsidic adj. of, relating to, or of the nature of a galactoside. ΚΠ 1926 Biochem. Jrnl. 20 827 The galactosidic residue of the cerebrosides is therefore similar to the sugar residue of all the naturally occurring glucosides so far examined. 1942 Bot. Gaz. 104 335/2 The galactosidic linkages may be folded into the structure in such a way that they cannot readily make contact with the enzyme. 1996 H.-M. Eun Enzymol. Primer for Recombinant DNA Technol. viii. 568 Galactosidases..specifically catalyze the hydrolysis of galactosidic linkages in various oligosaccharides. This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022). < n.1862
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