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OneShot
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[*] posted on 25-3-2011 at 18:19
citric acid


it is possible to extract citric acid just squeezing the lemon water and drying it at 100 or 110 C?
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Sedit
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[*] posted on 25-3-2011 at 19:01


No





Knowledge is useless to useless people...

"I see a lot of patterns in our behavior as a nation that parallel a lot of other historical processes. The fall of Rome, the fall of Germany — the fall of the ruling country, the people who think they can do whatever they want without anybody else's consent. I've seen this story before."~Maynard James Keenan
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[*] posted on 25-3-2011 at 20:56


Quote: Originally posted by Sedit  
No



why ?
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madscientist
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26-3-2011 at 00:47
Bot0nist
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[*] posted on 26-3-2011 at 08:22


Fractional re-crystallization maybe?

"Citric acid was first isolated in 1784 by the Swedish chemist Carl Wilhelm Scheele, who crystallized it from lemon juice."

"Citric acid exists in greater than trace amounts in a variety of fruits and vegetables, most notably citrus fruits. Lemons and limes have particularly high concentrations of the acid; it can constitute as much as 8% of the dry weight of these fruits (about 47 g/L in the juices[4]). The concentrations of citric acid in citrus fruits range from 0.005 mol/L for oranges and grapefruits to 0.30 mol/L in lemons and limes. Within species, these values vary depending on the cultivar and the circumstances in which the fruit was grown." -wikipedia

The chemical makeup of lemon juice as per wikipedia also lists the vitamin and mineral amounts in 1 fl oz (~30ml) of lemon juice.

Amounts Per Selected Serving

* Vitamin A 6.1IU 0%
* Retinol 0.0mcg
* Retinol Activity Equivalent 0.3mcg
* Alpha Carotene 0.0mcg
* Beta Carotene 0.9mcg
* Beta Cryptoxanthin 5.2mcg
* Lutein+Zeaxanthin 2.7mcg
* Vitamin C 14.0 mg 23%
* Folate 4.0mcg 1%
* Food Folate 4.0mcg
* Dietary Folate Equivalents 4.0mcg
* Choline 1.6 mg

Minerals

Amounts Per Selected Serving

* Calcium 2.1 mg 0%
* Magnesium 1.8 mg 0%
* Phosphorus 1.8 mg 0%
* Potassium 37.8 mg 1%
* Sodium 0.3 mg 0%




[Edited on 26-3-2011 by Bot0nist]
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[*] posted on 26-3-2011 at 10:33


http://www.erowid.org/archive/rhodium/chemistry/citricacid.t...

I have no idea if that works, but you can always try it.
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[*] posted on 26-3-2011 at 12:12


Hereabouts the grocery stores sell Sour Salt which is pure citric acid. Some things just aren't worth making, except maybe one time for the experience.
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[*] posted on 26-3-2011 at 14:49


Or at brewing stores they usually sell 1-2 ounce bags for 2 dollars or so.
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