trehalan.

/trɪˈhɑːlə/

Forms: Also tricala.

Etymology: < Turkish tīqālah.

The substance of the cocoons of a coleopterous insect, Larinus maculatus, found in Asia Minor; also called trehala-manna, Turkish or Syrian manna.

ΘΚΠ

the world > animals > invertebrates > phylum Arthropoda > class Insecta > order Coleoptera or beetles and weevils > [noun] > substance of cocoon of larinus maculatus

trehala1862

nest-sugar1890

1862 H. Watts tr. L. Gmelin Hand-bk. Chem. XV. 300 When pulverised trehala manna is treated with boiling alcohol, trehalose sometimes crystallises from the extract on cooling.

1868 H. Watts Dict. Chem. V. 878 Trehala or tricala, a substance imported from Persia, and consisting of the hollow cocoons of a coleopterous insect (Larinus maculatus). The larva of this insect eats the branches of Echinops persica, for the sake of the sugar, starch, and gum contained in them, and afterwards voids these substances to form its cocoon... Trehala has a sweetish taste, swells up in water, and is converted into a thick mucilaginous paste.

Derivatives

trehalose n.

/ˈtriːhələʊs/

/triːˈhɑːləʊs/ Chemistry a white crystalline sugar, C₁₂H₂₂O₁₁.2H₂O, obtained by Berthelot in 1857 from trehala.

ΘΚΠ

the world > matter > chemistry > organic chemistry > carbohydrates > sugars > polysaccharides > [noun] > other polysaccharides

trehalose1862

triticin1874

galactin1882

callose1890

floridean starch1902

levan1902

leucosin1914

arabinogalactan1928

laminarin1934

glucan1943

zymosan1943

agarose1953

laminaran1961

1862 W. A. Miller Elements Chem. (ed. 2) III. 73 The most important of these [varieties] is the common sugar, furnished by the sugar cane,..related to which are some others of small importance, viz. trehalose, melezitose, and melitose.

1865–8 H. Watts Dict. Chem. III. 1068 Mycose or trehalose. C₁₂H₂₂O₁₁... Berthelot..obtained from trehala-manna..a sugar which he called trehalose, and at first regarded as different from mycose; but on further examination he was led to infer that the two are identical.

This entry has not yet been fully updated (first published 1914; most recently modified version published online December 2020).

单词	trehala
释义	trehalan. /trɪˈhɑːlə/ Forms: Also tricala. Etymology: < Turkish tīqālah. The substance of the cocoons of a coleopterous insect, Larinus maculatus, found in Asia Minor; also called trehala-manna, Turkish or Syrian manna. ΘΚΠ the world > animals > invertebrates > phylum Arthropoda > class Insecta > order Coleoptera or beetles and weevils > [noun] > substance of cocoon of larinus maculatus trehala1862 nest-sugar1890 1862 H. Watts tr. L. Gmelin Hand-bk. Chem. XV. 300 When pulverised trehala manna is treated with boiling alcohol, trehalose sometimes crystallises from the extract on cooling. 1868 H. Watts Dict. Chem. V. 878 Trehala or tricala, a substance imported from Persia, and consisting of the hollow cocoons of a coleopterous insect (Larinus maculatus). The larva of this insect eats the branches of Echinops persica, for the sake of the sugar, starch, and gum contained in them, and afterwards voids these substances to form its cocoon... Trehala has a sweetish taste, swells up in water, and is converted into a thick mucilaginous paste. Derivatives trehalose n. /ˈtriːhələʊs//triːˈhɑːləʊs/ Chemistry a white crystalline sugar, C₁₂H₂₂O₁₁.2H₂O, obtained by Berthelot in 1857 from trehala. ΘΚΠ the world > matter > chemistry > organic chemistry > carbohydrates > sugars > polysaccharides > [noun] > other polysaccharides trehalose1862 triticin1874 galactin1882 callose1890 floridean starch1902 levan1902 leucosin1914 arabinogalactan1928 laminarin1934 glucan1943 zymosan1943 agarose1953 laminaran1961 1862 W. A. Miller Elements Chem. (ed. 2) III. 73 The most important of these [varieties] is the common sugar, furnished by the sugar cane,..related to which are some others of small importance, viz. trehalose, melezitose, and melitose. 1865–8 H. Watts Dict. Chem. III. 1068 Mycose or trehalose. C₁₂H₂₂O₁₁... Berthelot..obtained from trehala-manna..a sugar which he called trehalose, and at first regarded as different from mycose; but on further examination he was led to infer that the two are identical. This entry has not yet been fully updated (first published 1914; most recently modified version published online December 2020). < n.1862
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