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单词 gentianine
释义

gentianinen.

Brit. /ˈdʒɛnʃənɪn/, /ˈdʒɛnʃɪənɪn/, /ˈdʒɛnʃəniːn/, /ˈdʒɛnʃɪəniːn/, U.S. /ˈdʒɛn(t)ʃənən/
Forms: 1800s– gentianin, 1800s– gentianine.
Origin: A borrowing from French. Etymon: French gentianin.
Etymology: < French gentianin (N. É. Henry & J. B. Caventou 1821, in Jrnl. de pharm. 7 178; also gentianine (1823)) < gentiane gentian n. + -in -in suffix1.Compare German Gentianin (1822 in sense 1; < French).
Biochemistry.
1. Any of several compounds isolated from gentian root; esp. gentisin. Now rare.
ΚΠ
1823 C. T. Haden tr. F. Magendie Formulary New Remedies 87 Gentianin [Fr. gentianin] does not sensibly change the colour of turnsol either when blue or when reddened by acids.
1843 Chem. Gaz. 15 Nov. 446 Gentianine crystallizes in slender, pale yellow, acicular needles.
1874 C. D. F. Phillips Materia Medica & Therapeutics Veg. Kingdom 311 The active principle of gentian is not, as was formerly supposed, the gentianine or gentianic acid, C14H10O5.
1904 S. E. Jelliffe Introd. Pharmacognosy 117 The coloring-matter is gentisin (gentianin or gentisic acid) in yellow tasteless crystals.
2007 Nat. Sources Flavourings: Rep. No. 2 (Council of Europe) 85 Mainly gentisin [1,7-dihydroxy-3-methoxy-xanthone; also known as gentianin].
2. In form gentianin. A plant pigment of the anthocyanin class, originally isolated from the blue flowers of a species of gentian ( Gentiana acaulis).Formula: C30H27O14. [After German Gentianin (P. Karrer & R. Widmer 1927, in Helvetica Chimica Acta 10 73).]
ΘΚΠ
the world > matter > colour > named colours > blue or blueness > blue colouring matter > [noun] > blue pigment > specific
azurec1374
lapis lazulia1425
litmusc1503
verditer1505
florey1527
bice1548
smalt1558
smalts1591
smalt1598
ultramarine1598
litmus blue1612
verditer1665
ultramarine blue (or colour)1686
blue sublimate1700
Prussian blue1724
terre bleue1728
starch blue1742
king's blue1778
verditel1778
Antwerp brown1787
Berlin blue1794
lacmus1794
Antwerp blue1795
French blue1802
lapis1811
Waterloo blue1815
Waterloo1823
cobalt1835
Thénard's blue1837
iron blue1839
turnsole1839
permanent blue1863
opal blue1880
Haarlem blue1885
cyanine blue1886
cerulean blue1889
Victoria blue1890
Milori blue1899
Prussian1911
Windsor blue1912
gentianine1927
Monastral1936
Alcian Blue1947
1927 Brit. Chem. Abstr. A. 253/1 About 0.1% of a pure anthocyanin (gentianin) may be extracted from the dried flowers of the blue gentian, Gentiana acaulis.
1963 T. A. Geissman in M. Florkin & E. H. Stotz Comprehensive Biochem. IX. x. 238 Gentianin is a p-hydroxycinnamoyl derivative of a delphinidin glucoside.
2000 W. Steglich et al. RÖMPP Encycl. Nat. Products 256/1 Gentianin (p-coumaric acid ester of delphinidin 3-O-glucoside).
3. Usually in form gentianine. A monoterpenoid alkaloid present in gentians and certain other plants, experimentally demonstrated to have hypotensive, muscle relaxant, and anti-inflammatory properties.Formula: C10H9NO2.
ΚΠ
1946 Chem. Abstr. 40 7213 Extn. [= extraction] of ground Gentiana kirilowi..gave 0.1% gentianine.
1949 T. A. Henry Plant Alkaloids (ed. 4) 742 This plant [sc. Gentiana kirilowii] contains the alkaloid gentianine, C10H9O2N.
1963 R. Hegnauer in T. Swain Chem. Plant Taxon. xiv. 399 The majority of the Gentianaceae contain only gentianine.
1992 W. Tang & G. Eisenbrand Chinese Drugs of Plant Origin lxxii. 553 Antiinflammatory activity of gentianine was also demonstrated.
2006 Canad. Jrnl. Physiol. & Pharmacol. 84 652/2 Alkaloids like choline and gentianine, flavonoids, and quercitin are some of the other components of Trigonella seeds, which have antidiabetic and hypoglycemic effects.
This entry has been updated (OED Third Edition, March 2021; most recently modified version published online March 2022).
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