Citric Acid?

[puressence]

Could someone be able to elaborate more for me in regards to what Citric Acid is please? Is it from citric fruits or from animals?

I am noticing that Citric Acid is in fruit lollies which are a natural lolly so Im presuming its from a lemon, orange or grapefruit and Citric Acid is also in Vegetable can soups where all vegetables are in it.

I find this acid is be somewhat confusing

[Mahk]

Production
In this production technique, which is still the major industrial route to citric acid used today, cultures of Aspergillus niger are fed on a sucrose or glucose-containing medium to produce citric acid. The source of sugar is corn steep liquor,[2] molasses, hydrolyzed corn starch or other inexpensive sugary solutions.[3] 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.


from wikipedia