invertinn.

Brit.

/ɪnˈvəːtɪn/,

/ˈɪnvətɪn/, U.S.

/ᵻnˈvərˌtɪn/,

/ˈɪnvərˌtɪn/

Origin: Formed within English, by derivation; modelled on a German lexical item. Etymons: invert v., -in suffix¹.

Etymology: < invert v. + -in suffix¹, after German Invertin (E. Donath 1875, in Berichte der Deutsch. Chem. Ges. 8 797).

Biochemistry. Now historical.

An enzyme produced by yeast which catalyses the hydrolysis of sucrose, forming invert sugar; = invertase n.

ΘΚΠ

the world > matter > chemistry > organic chemistry > carbohydrates > sugars > [noun] > inversion > constituent producing inversion

invertin1878

invertase1884

sucrase1900

1878 Jrnl. Chem. Soc. 34 90 An ice-cold mixture of cane-sugar solution and invertin was divided into five parts, and through each of four of them a special kind of gas was passed.

1896 T. C. Allbutt et al. Syst. Med. I. 519 Invertin, an enzyme capable of changing cane-sugar into dextrose, is found in internal bacilli.

1927 J. S. McLester Nutrition & Diet in Health & Dis. iii. 51 This ferment, invertin, is not of great service, since it merely splits small amounts of cane sugar.

2004 E. D. Morgan Biosynthesis in Insects i. 5 Emil Fischer, at the beginning of the 20th century had two enzymes called invertin and emulsin. Invertin hydrolysed only α- d-glucosides..while emulsin hydrolysed β- d-glucosides.

This entry has been updated (OED Third Edition, June 2019; most recently modified version published online March 2022).

单词	invertin
释义	invertinn. Brit. /ɪnˈvəːtɪn/, /ˈɪnvətɪn/, U.S. /ᵻnˈvərˌtɪn/, /ˈɪnvərˌtɪn/ Origin: Formed within English, by derivation; modelled on a German lexical item. Etymons: invert v., -in suffix¹. Etymology: < invert v. + -in suffix¹, after German Invertin (E. Donath 1875, in Berichte der Deutsch. Chem. Ges. 8 797). Biochemistry. Now historical. An enzyme produced by yeast which catalyses the hydrolysis of sucrose, forming invert sugar; = invertase n. ΘΚΠ the world > matter > chemistry > organic chemistry > carbohydrates > sugars > [noun] > inversion > constituent producing inversion invertin1878 invertase1884 sucrase1900 1878 Jrnl. Chem. Soc. 34 90 An ice-cold mixture of cane-sugar solution and invertin was divided into five parts, and through each of four of them a special kind of gas was passed. 1896 T. C. Allbutt et al. Syst. Med. I. 519 Invertin, an enzyme capable of changing cane-sugar into dextrose, is found in internal bacilli. 1927 J. S. McLester Nutrition & Diet in Health & Dis. iii. 51 This ferment, invertin, is not of great service, since it merely splits small amounts of cane sugar. 2004 E. D. Morgan Biosynthesis in Insects i. 5 Emil Fischer, at the beginning of the 20th century had two enzymes called invertin and emulsin. Invertin hydrolysed only α- d-glucosides..while emulsin hydrolysed β- d-glucosides. This entry has been updated (OED Third Edition, June 2019; most recently modified version published online March 2022). < n.1878
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