The Chemistry of Foods: Tea, coffee, cocoa, sugar, etcCommittee of Council on Education, 1881 - Food |
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Page 8
... means from the cellulose of the leaf is unsatisfactory . The cellulose of tea is readily acted on by the fixed alkalis , so that the albumin can be only partially recovered in an impure state . The amount of this substance may be more ...
... means from the cellulose of the leaf is unsatisfactory . The cellulose of tea is readily acted on by the fixed alkalis , so that the albumin can be only partially recovered in an impure state . The amount of this substance may be more ...
Page 17
... means of sulphuretted hydrogen . The filtrate from the sulphide of lead is gently evaporated to a small bulk , and left for twenty - four hours , when the theine will be found to crystallize out in an impure state . The crystals are ...
... means of sulphuretted hydrogen . The filtrate from the sulphide of lead is gently evaporated to a small bulk , and left for twenty - four hours , when the theine will be found to crystallize out in an impure state . The crystals are ...
Page 31
... means of forming an estimate of the amount of facing present . Care , however , should be taken to make allowance for any sand unavoidably decanted with the colouring matter . Before applying any chemical test it is well to examine TEA .
... means of forming an estimate of the amount of facing present . Care , however , should be taken to make allowance for any sand unavoidably decanted with the colouring matter . Before applying any chemical test it is well to examine TEA .
Page 33
... means of a camel's - hair brush . It is impossible to describe the form and structure of every leaf which might be used as an adulterant of tea ; but it may be useful to give a few examples to indicate the way in which different leaves ...
... means of a camel's - hair brush . It is impossible to describe the form and structure of every leaf which might be used as an adulterant of tea ; but it may be useful to give a few examples to indicate the way in which different leaves ...
Page 48
... of phosphoric acid , the non - fatty portion of the alcohol extract of the coffee . We have obtained by this means from 8 : 4 to 9'5 per cent . in the raw coffee . Sugar . The estimation of the sugar in coffee is 48 COFFEE .
... of phosphoric acid , the non - fatty portion of the alcohol extract of the coffee . We have obtained by this means from 8 : 4 to 9'5 per cent . in the raw coffee . Sugar . The estimation of the sugar in coffee is 48 COFFEE .
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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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