Tomatoes have a distinct, slightly tart and tangy flavor. This sour taste is due to the presence of various natural organic acids in the fruit. Understanding these acids is a common topic in school chemistry and biology.
Botanically, a tomato is a fruit, not a vegetable.
Citric and Malic acids make up the bulk of a tomato's acidity.
The pH of a standard ripe tomato is slightly acidic, ranging from 4.3 to 4.9.
Tomatoes contain a mixture of several organic acids. The two most dominant acids are:
In many competitive exams (like SSC or UPSC), if asked 'Which specific acid is found in tomatoes?', the expected answer is often Oxalic Acid. While present in much smaller quantities than citric acid, it is a key distinctive acid found in tomatoes and spinach.
Lemons contain a very high concentration of Citric Acid.
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