| 释义 |
algin Chem.|ˈældʒɪn|
Also ˈalgine.
[f. alga + -in1.]
A nitrogenous substance, resembling gelatin, obtainable from certain algæ. So ˈalgic or alˈginic acid; ˈalginate, a salt of alginic acid.
1883E. C. C. Stanford in Chem. News XLVII. 255/2 This fluid contains a unique substance..to which, from its source [sc. sea-weed], I have given the name algin. 1885Jrnl. Soc. Chem. Ind. IV. 520/1 Insoluble algin, or alginic acid, has a sp. gr. of 1·5, and closely resembles horn. 1888Chambers's Encycl. I. 160 The cell-walls of our common brown seaweeds..all contain algin. 1897C. T. Davis Manuf. Leather xxxvii. 505 Algine dissolved in water in the proportion of 12 to 100. 1915Jrnl. Chem. Soc. CVIII. i. 932 Constituents of the cell walls of the Fucoideae are..algin, the calcium salt of algic acid. 1937Thorpe's Dict. Appl. Chem. I. 201 Commercial algin or sodium alginate. 1940J. B. Speakman in Textile Manufacturer LXVI. 464/2 Since sodium alginate dissolves in water to give solutions of high viscosity, whereas calcium alginate is insoluble, filaments are readily obtained. 1946Lancet 24 Aug. 279/1 Calcium alginate filaments can be prepared as an absorbable hæmostatic gauze for application to oozing surfaces... Alginates..are relatively cheap, and can be sterilised by heat. 1955Times 14 July 9/3 The establishment in Scotland, during the Second World War by the Ministry of Supply, of factories to produce alginates—the salts of alginic acid extracted from the brown seaweeds. |