The Chemistry of Foods: Tea, coffee, cocoa, sugar, etcCommittee of Council on Education, 1881 - Food |
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Page 4
... addition of 5 per cent . ad valorem . The high rate of duty which was at first imposed on tea in this country was maintained for a long period , though frequent altera- tions were made in the tax . At the termination of the East India ...
... addition of 5 per cent . ad valorem . The high rate of duty which was at first imposed on tea in this country was maintained for a long period , though frequent altera- tions were made in the tax . At the termination of the East India ...
Page 17
... addition of water , is filtered to remove colouring matter thrown out of solution . A further amount of colouring matter is got rid of by evaporating this filtrate to dryness , and exhausting the residue with boiling water . The ...
... addition of water , is filtered to remove colouring matter thrown out of solution . A further amount of colouring matter is got rid of by evaporating this filtrate to dryness , and exhausting the residue with boiling water . The ...
Page 19
... addition of 10 cubic centimetres of the tannin solution , and the permanganate solution added as before . The difference in the two results is due to the tannic acid . It is desirable that the experiments should Occupy the same time ...
... addition of 10 cubic centimetres of the tannin solution , and the permanganate solution added as before . The difference in the two results is due to the tannic acid . It is desirable that the experiments should Occupy the same time ...
Page 20
... addition of a few drops of hydrochloric acid , the pectin and Dectic acid are precipitated by the addition of 200 cubic centimetres of alcohol 20 TEA .
... addition of a few drops of hydrochloric acid , the pectin and Dectic acid are precipitated by the addition of 200 cubic centimetres of alcohol 20 TEA .
Page 21
James Bell. precipitated by the addition of 200 cubic centimetres of alcohol of 90 per cent . The precipitate , which appears as a transparent gelatinous mass , is separated by filtration , re - dissolved in a little water , and again ...
James Bell. precipitated by the addition of 200 cubic centimetres of alcohol of 90 per cent . The precipitate , which appears as a transparent gelatinous mass , is separated by filtration , re - dissolved in a little water , and again ...
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Common terms and phrases
250 cubic centimetres Acorns added adulteration albumin alcohol alkaloid analysis appearance bean benzol berries boiling water caffeic acid Caffeine cane caramel cells cellulose cent centimetres of water chemists chicory cloth cocoa cocoa nibs coffee cold water colouring matter Congou consists constituents contains copper crown 8vo crystals cubic centimetres Demy 8vo dextrin dextro-glucose dilute dissolved distilled dried estimation ether evaporated exhausted leaves Fehling's fermentation filtered filtrate glucose grains grams granules green tea husk India infusion insoluble invert-sugar kernel laticiferous laticiferous tissue leaf magnesia mangold wurzel manufacture mineral matter mixture nitrogen obtained Orange Pekoe oxide Parsnips percentage of ash portion potash powder precipitate prepared present proportion Prussian blue pure cane-sugar raw sugar removed roasted sample of coffee seeds Silica skin soluble in water solution Souchong specific gravity starch sulphuretted hydrogen sulphuric acid tannic acid tannin temperature theine theobromine Trinidad vegetable substances weight wurzel
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