galactonicadj.

Brit.

/ˌɡaləkˈtɒnɪk/, U.S.

/ˌɡæləkˈtɑnɪk/

Origin: Formed within English, by derivation; modelled on a German lexical item. Etymons: galacto- comb. form, -onic suffix.

Etymology: < galacto- comb. form + -onic suffix, after German Galactonsäure galactonic acid (H. Kiliani 1885, in Berichte der Deutsch. Chem. Ges. 18 1551; now also Galaktonsäure).

Chemistry.

galactonic acid n. a crystalline acid derived from galactose by oxidation of the aldehyde group to a carboxyl group.Formula: CH₂OH(CHOH)₄COOH.

ΚΠ

1885 Jrnl. Chem. Soc. 48 967 Galactonic acid, C₆H₁₂O₇, is best prepared by the action of bromine on an aqueous solution of lactose.

1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) ix. 227 A number of different acids, e.g. mannonic, gluconic, gulonic, galactonic, and talonic acids, have been obtained by the oxidation of the hexoses.

1956 Biochem. Jrnl. 64 21/2 The enzymic reduction of derivatives of d-galacturonic acid to derivatives of l-galactonic acid has been demonstrated in peas.

2005 Y. Brummer & S. W. Cui in S. W. Cui Food Carbohydrates ii. 85 Galactose is oxidized to galactonic acid by NAD in the presence of galactose dehydrogenase.

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

单词	galactonic
释义	galactonicadj. Brit. /ˌɡaləkˈtɒnɪk/, U.S. /ˌɡæləkˈtɑnɪk/ Origin: Formed within English, by derivation; modelled on a German lexical item. Etymons: galacto- comb. form, -onic suffix. Etymology: < galacto- comb. form + -onic suffix, after German Galactonsäure galactonic acid (H. Kiliani 1885, in Berichte der Deutsch. Chem. Ges. 18 1551; now also Galaktonsäure). Chemistry. galactonic acid n. a crystalline acid derived from galactose by oxidation of the aldehyde group to a carboxyl group.Formula: CH₂OH(CHOH)₄COOH. ΚΠ 1885 Jrnl. Chem. Soc. 48 967 Galactonic acid, C₆H₁₂O₇, is best prepared by the action of bromine on an aqueous solution of lactose. 1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) ix. 227 A number of different acids, e.g. mannonic, gluconic, gulonic, galactonic, and talonic acids, have been obtained by the oxidation of the hexoses. 1956 Biochem. Jrnl. 64 21/2 The enzymic reduction of derivatives of d-galacturonic acid to derivatives of l-galactonic acid has been demonstrated in peas. 2005 Y. Brummer & S. W. Cui in S. W. Cui Food Carbohydrates ii. 85 Galactose is oxidized to galactonic acid by NAD in the presence of galactose dehydrogenase. This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022). < adj.1885
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