Changes in Provisional Methods for the Analysis of Foods And Additions Thereto
Changes in Provisional Methods for the Analysis of Foods And Additions Thereto
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Carefully ignite the residue from the total solids, cool, and weigh.
Fat. Measure 15 cc of the above 40 per cent solution, corresponding to 6 grams of the condensed milk, into a Babcock test bottle. Fill nearly to the neck with water and add 4 cc of Fehling's copper solution, shake thoroughly and rapidly, sep- arating the precipitated proteids and fat by means of a centrifuge, & or the precipitate may be allowed to settle of itself, which it does more quickly in the cold. Withdraw the supernata...nt sugar-containing liquid by means of a small stemmed pipette with a wisp of wet absorbent cotton twisted over the bottom to serve as a filter. Wipe off the cotton into the bottle on withdrawing the pipette. Give the precipitated proteids and fat two additional washings as above by shaking with water, separating the pre- cipitate, and removing the washings with the pipette. If the precipitate is caked hard after centrifuging, use a stiff platinum wire as a stirrer. Finally add water to an approximate volume of 17.
What to read after Changes in Provisional Methods for the Analysis of Foods And Additions Thereto?
You can find similar books in the "Read Also" column, or choose other free books by United States Bureau of Chemistry to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Carefully ignite the residue from the total solids, cool, and weigh.
Fat. Measure 15 cc of the above 40 per cent solution, corresponding to 6 grams of the condensed milk, into a Babcock test bottle. Fill nearly to the neck with water and add 4 cc of Fehling's copper solution, shake thoroughly and rapidly, sep- arating the precipitated proteids and fat by means of a centrifuge, & or the precipitate may be allowed to settle of itself, which it does more quickly in the cold. Withdraw the supernata...nt sugar-containing liquid by means of a small stemmed pipette with a wisp of wet absorbent cotton twisted over the bottom to serve as a filter. Wipe off the cotton into the bottle on withdrawing the pipette. Give the precipitated proteids and fat two additional washings as above by shaking with water, separating the pre- cipitate, and removing the washings with the pipette. If the precipitate is caked hard after centrifuging, use a stiff platinum wire as a stirrer. Finally add water to an approximate volume of 17.
What to read after Changes in Provisional Methods for the Analysis of Foods And Additions Thereto?
You can find similar books in the "Read Also" column, or choose other free books by United States Bureau of Chemistry to read onlineMoreLess
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