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单词 galactitol
释义

galactitoln.

Brit. /ɡəˈlaktᵻtɒl/, U.S. /ɡəˈlæktəˌtɔl/, /ɡəˈlæktəˌtɑl/
Origin: Formed within English, by derivation; modelled on a German lexical item. Etymons: galactose n., -itol suffix.
Etymology: < galact- (in galactose n.) + -itol suffix, after German Galactit (H. Ritthausen 1896, in Berichte der Deutsch. Chem. Ges. 29 896).
Chemistry.
A crystalline alcohol produced by reduction of galactose and found in many plants. Also called dulcitol.Galactitol is a hexahydric alcohol. Formula: C6H14O6.
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the world > matter > chemistry > organic chemistry > carbohydrates > sugars > [noun] > dulcitol
melampyrin1838
dulcin1850
dulcose1850
dulcite1862
melampyrite1862
dulcitol1880
Madagascar manna1889
galactitol1896
1896 Jrnl. Chem. Soc. 70 405 Galactitol..is obtained by extracting lupin seed with dilute alcohol.., evaporating the solution to dryness, and purifying the residue.
1948 W. Pigman Chem. Carbohydrates vi. 254 This procedure provides a qualitative identification of galactitol by converting it to insoluble mucic acid.
1992 Internat. Jrnl. Food Sci. & Nutrition 43 156/1 The sugar alcohol of galactose (galactitol or dulcitol) is suspected of mediating lenticular swelling.
2006 S. Mehta et al. Step-up to Bedside (ed. 2) i. 4 Deposition of galactitol in the lens leads to formation of cataracts.
This is a new entry (OED Third Edition, November 2010; most recently modified version published online March 2022).
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n.1896
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