[Futhark (OP)]

Hallo,

I would very much like to know how citric acid is produced by the industry. I know that sugar and some kind of bacteria is involved, but I need much more information for my chemistry rapport. []

Hope you can help.

Yours

F

[Hadrian]

In this production technique, which is still the major industrial route to citric acid used today, cultures of Aspergillus niger are fed on sucrose to produce citric acid. After the mold is filtered out of the resulting solution, citric acid is isolated by precipitating it with lime (calcium hydroxide) to yield calcium citrate salt, from which citric acid is regenerated by treatment with sulfuric acid.

Alternatively, citric acid is sometimes isolated from the fermentation broth by extraction with a hydrocarbon solution of the organic base trilaurylamine, followed by re-extraction from the organic solution by water

http://en.wikipedia.org/wiki/Citric_acid


 


What you do speaks so loudly that I cannot hear what you say.

[SpamFeed]

Synthetic citric acid can be created, with the assist of positive sugars (corn starch and sugar beets) handled with a fungus aspergillus niger. That is one of the maximum famous manufacturing techniques and is additive in a way.
synthetic method：spam.com