The Chemistry of Foods: Tea, coffee, cocoa, sugar, etcCommittee of Council on Education, 1881 - Food |
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Page 4
... 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 Company's Charter ...
... 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 Company's Charter ...
Page 7
... cent . Albumin and similar substances contain only from 15 to 16 per cent . It is to theine , chiefly , that the beneficial and stimulating properties of tea are ascribed , aided , no doubt , by the peculiar volatile principle present ...
... cent . Albumin and similar substances contain only from 15 to 16 per cent . It is to theine , chiefly , that the beneficial and stimulating properties of tea are ascribed , aided , no doubt , by the peculiar volatile principle present ...
Page 8
... cent . Like ordinary casein and coagulated albumin , it is dissolved by alkalis ; but its separation by this means from the cellulose of the leaf is unsatisfactory . The cellulose of tea is readily acted on by the fixed alkalis , so ...
... cent . Like ordinary casein and coagulated albumin , it is dissolved by alkalis ; but its separation by this means from the cellulose of the leaf is unsatisfactory . The cellulose of tea is readily acted on by the fixed alkalis , so ...
Page 9
... cent . of glucose , in- dicating that a portion of it existed as a glucoside . Under similar conditions the tannin of the black tea gave no sugar . Tannin . This is the most abundant substance found in the soluble part of the tea - leaf ...
... cent . of glucose , in- dicating that a portion of it existed as a glucoside . Under similar conditions the tannin of the black tea gave no sugar . Tannin . This is the most abundant substance found in the soluble part of the tea - leaf ...
Page 11
... high proportion of total ash ( 8.29 ) , arising from sand and silica . It will be seen on page 28 that a second sample shows only 6.88 per cent . MICROSCOPIC STRUCTURE . The leaves of the tea plant vary TEA . II TEA I.
... high proportion of total ash ( 8.29 ) , arising from sand and silica . It will be seen on page 28 that a second sample shows only 6.88 per cent . MICROSCOPIC STRUCTURE . The leaves of the tea plant vary TEA . II TEA I.
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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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