. Public health and preventive medicine. ust be determined. It is extracted with etherand weighed. It amounts to from 12 to 13 per cent. Adulterations and their Detection.—Chicory, the ground dried root ofthe wild endive, can hardly be considered an adulteration unless its presenceis not declared by the vendor. Its addition is not illegal, and there is often30 per cent, of it present in the mixture. Coffee plus chicory has less caffein and less fat, but more sugar, and whenthrown into water the coffee floats, while the chicory sinks, leaving a browntell-tale track behind it. Microscopically, c
. Public health and preventive medicine. ust be determined. It is extracted with etherand weighed. It amounts to from 12 to 13 per cent. Adulterations and their Detection.—Chicory, the ground dried root ofthe wild endive, can hardly be considered an adulteration unless its presenceis not declared by the vendor. Its addition is not illegal, and there is often30 per cent, of it present in the mixture. Coffee plus chicory has less caffein and less fat, but more sugar, and whenthrown into water the coffee floats, while the chicory sinks, leaving a browntell-tale track behind it. Microscopically, chicory is recognised by its open parenchyma and itspeculiar dotted ducts (Fig. 79, b). The amount of chicory may be foundfrom the specific gravity of a 10 per cent, infusion of the mixture, sincethe specific gravity of a 10 per cent, infusion of pure coffee is 1010, and of asimilar strength of pure chicory 1023. If the specific gravity of theinfusion of the mixture be 1015, the percentage of coffee is 61*5, and ofchicory 38*5. Fi<:. Coffee membranex SO diameters.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectprevent, bookyear1902
