On the Composition of Food and how it is Adulterated: With Practical Directions for Its Analysis |
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Page 14
... microscope affords means of detecting readily any kind of flour from the form of its starch corpuscles . Wheaten flour is often adulterated with an inferior farina , so that it is of the greatest importance that the analyst should be ...
... microscope affords means of detecting readily any kind of flour from the form of its starch corpuscles . Wheaten flour is often adulterated with an inferior farina , so that it is of the greatest importance that the analyst should be ...
Page 15
... microscope glass , moisten it with a drop of water. Wheat Starch . ( Magnified 290 diam . ) Potato Starch . ( Mag . 290 diam . ) Barley Starch . ( Mag . 290 diam . ) Rye Starch . ( Mag . 290 diam . ) Indian - Corn Starch . ( Mag . 290 ...
... microscope glass , moisten it with a drop of water. Wheat Starch . ( Magnified 290 diam . ) Potato Starch . ( Mag . 290 diam . ) Barley Starch . ( Mag . 290 diam . ) Rye Starch . ( Mag . 290 diam . ) Indian - Corn Starch . ( Mag . 290 ...
Page 18
... microscope , consist partly if not entirely of carbonate of magnesia . If no crystalline precipitate be formed , to another sample of the original solution add ammonia and oxalic acid , the appearance of a precipitate insoluble in ...
... microscope , consist partly if not entirely of carbonate of magnesia . If no crystalline precipitate be formed , to another sample of the original solution add ammonia and oxalic acid , the appearance of a precipitate insoluble in ...
Page 17
... microscope will therefore enable the observer to ascertain at once whether a sample of any kind of flour be pure , or mixed with other farinæ . 3. ADULTERATIONS OF WHEAT FLOUR . - The substances principally employed for the purpose of ...
... microscope will therefore enable the observer to ascertain at once whether a sample of any kind of flour be pure , or mixed with other farinæ . 3. ADULTERATIONS OF WHEAT FLOUR . - The substances principally employed for the purpose of ...
Page 18
... microscope , consist partly if not entirely of carbonate of magnesia . If no crystalline precipitate be formed , to another sample of the original solution add ammonia and oxalic acid , the appearance of a precipitate insoluble in ...
... microscope , consist partly if not entirely of carbonate of magnesia . If no crystalline precipitate be formed , to another sample of the original solution add ammonia and oxalic acid , the appearance of a precipitate insoluble in ...
Other editions - View all
On the Composition of Food and How It Is Adulterated, Practical Directions ... William Marcet No preview available - 2023 |
On the Composition of Food and How It Is Adulterated, Practical Directions ... W. Marcet No preview available - 2017 |
Common terms and phrases
acetic adulteration alcohol allspice alum ammonia analysis angular cells appearance arrow-root ashes berry black pepper black tea blue colour boiled bread Capsicum carbonate of lime carbonic acid cassia cayenne cayenne pepper Chemical chicory chloride cinnamon cloves cocoa coffee colouring matter comfit consists containing copper detected diam dilute hydrochloric acid Diseases dissolved distilled dried dryness employed Engravings essential oil evaporate extract Fcap fermentation filter fluid ginger globules grains grape sugar green tea Hospital husk hydrochloric acid infusion insoluble iron Lancet leaves Lignine liquid magnesia method microscope mixed mixture nitric acid nutmeg obtained pepper potash potato flour powder precipitate quantity residue roasted sago salt sample seed soda soluble solution spice starch starch corpuscles starch granules structure substance sulphate of lime sulphuric acid tannin tea-leaves tion tube turmeric vegetable vinegar volatile oil weight wheat white mustard wine woody fibres yellow yield دو وو
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