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Milk Sugar: Whey Boiled to a Fifteenth, Crystallised and Decolourised (US Dispensatory 1907)
Milk is about 5 % milk sugar. The Swiss way of getting it out: curdle the milk with a little dilute sulphuric acid, boil the whey down to a fifteenth of its bulk, and leave it a day or two. The sugar crystallises as a yellow 'sugar-sand', then animal charcoal and recrystallising make it white.
Source: The Dispensatory of the United States of America (1907), Saccharum Lactis. Not given: how much acid, and how the sugar-sand is separated and decolourised; those are stated as not given. The vessels, cloth and filter are ours. Picture drawn by Youblob.
Àárín
3 days
Ìlànà
1
1
Curdle the milk with dilute sulphuric acid
Curdle the milk with dilute sulphuric acid
Add a little diluted sulphuric acid to milk to coagulate it, and strain off the whey. Not given: how much acid. Ours: cheesecloth, gloves.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Wàrà tí a ti yọ ọ̀rá kúrò1 as required
Sulfuric acid1 as requiredÀwọn irinṣẹ́ tí a nílò:
Ohun èlò dígí
Aṣọ wàrà-dídì
Ìbọ̀wọ́ Nítírílì2
2
Boil the whey down to a fifteenth
Boil the whey down to a fifteenth
Boil the whey down to about one fifteenth of its bulk: a brown, viscid, sweetly salty mass.
Àwọn irinṣẹ́ tí a nílò:
Àwo Ìgbẹ
Pátákó Gbígbóná3
3
Let the sugar-sand crystallise
Let the sugar-sand crystallise
Put it into tubs. In 24 to 48 hours the sugar crystallises as a bright yellow granular mass, the 'sugar-sand'.
Àwọn irinṣẹ́ tí a nílò:
Ohun èlò dígí4
4
Decolourise and recrystallise
Decolourise and recrystallise
Dissolve the sugar-sand in water, decolourise it with animal charcoal, filter, and crystallise it again, repeating until white. Not given: the amounts.
Àwọn irinṣẹ́ tí a nílò:
Omi
Dúdú egungun
Bébà Ìsẹ́Àwo ÌgbẹPátákó GbígbónáÀwọn ohun-èlò
2- 1 as requiredÀyè
- 1 as requiredÀyè
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