Heating acids degrades them which reduces the amount of acid content when it breaks the acids down. So by cooking onions you are in essence reducing the acidic content, but you are also concentrating other flavors.
On a side note, if you are referring to reducing the eye irritation when cutting or bruising onions then that is a little different.
Onions contain sulfuric compounds that produce sulfuric acid when they waft in the air and make contact with the water in your eye. The sulfuric acid burns your eye and your tear ducts release tears to try and wash it out or dilute it enough to stop the burning sensation.
try freezing them first. or ask brady he will burn them for ya
iron in hcl
No. But eating onion helps to reduce uric acid content in the body.
Onions have a high acid content and this makes them strong in flavor and makes you cry when cutting them.
Acid
Plain Silverskin Onions: silverskin onions, water, spirit vinegar, acetic acid, flavorings, preservatives
The onions arent an alkali or an acid,but the thing they're soaked in- vinegar makes them pickled. Vinegar is an acid.
Sulfenic acids don't exist in raw onions; they appear as degradation products of alliin only after cutting onions.
Pickling is often done with vinegar, which is diluted acetic acid, making whatever is pickled acidic.
You can try low fat cheeses which have a lower uric acid content. However, you may find you are better off without cheese or other saturated fats in your diet.
to revent it from rancidity Usually as a flavouring or preservative. e.g. Pickled Onions are preserved in vinegar (an acid) the vinegar also adds flavour to the onions.
due to the presence of protocatechuic acid red onions are resistant to smudge.