There has a great difference in the answer if we consider the question under views of chemistry or nutritional science. So, lemon is acidic or alkaline? It commonly believes that lemon is acidic because it's sour in taste. However, in the view of nutritional science, lemon is an alkaline food.
Why? The answer is simple as when we take in the food, it will become alkaline. That's why we classify it as an alkaline food. For example, when we take in lemon juice (wow.. so sour! :P), It'll be oxidize to form water, carbon dioxide and an inorganic compound. The alkaline or acidic nature of the inorganic compound formed determines whether the food is an alkaline or acidic.
If it contains more sodium, potassium or calcium, it'll become an alkaline food. Because when sodium compounds dissolve in water, it forms an alkaline solution.
Na2CO3 + H2O ---> 2NaHCO3
HCO3- + H2O ---> H2CO3 + OH-
2(Na+)2O22- + 2H2O ---> 4Na+OH- + O2
You may doubt, where comes the NaCO3 & 2(Na+)2O22-?.. ha ha.. :-)
Ok, just recall your memories with Junior forms biology. The food you ingest, no matter that's chicken leg or french fries. It burns!!!
Of coz a fire won't be set, instead, a series of complex chemical oxidation process will take place. It's similar to an simple experiment by,
1. heating the food to burn out all of the organic matters.
2. dissolving the ash
3. test it with limus.
In contract, if it contains more sulphur, phosphate or chloride, it forms an acid food.
Bookmarks