Which one of the following Acids is Predominantly Found in Tomatoes?

Correct Answer: c. Oxalic acid

Tomatoes are a common part of our meals and used in everything from curries to ketchup. But have you ever wondered why tomatoes have that slightly sour, tangy taste? It’s because of an acid called oxalic acid, which is naturally present in tomatoes. While tomatoes also contain small amounts of citric and malic acids, oxalic acid is the most predominant.

What is Oxalic Acid and Why is it Found in Tomatoes?

Oxalic acid is an organic compound naturally found in many vegetables, fruits, nuts, and seeds. In tomatoes, it gives that signature sour flavor we all recognize. The main purpose of oxalic acid in plants like tomatoes is to protect them against insects and diseases, acting as a natural defense mechanism.

Tomatoes contain oxalic acid in small amounts, making them safe to eat and giving them their delicious tangy taste. It’s important to note that oxalic acid is also found in foods like spinach, beetroot, and rhubarb. So if you’re someone who enjoys veggies, you’ve probably been eating this acid without even knowing it!

How Does Oxalic Acid Affect the Human Body?

Oxalic acid is safe to consume in small to moderate amounts, especially when it comes from natural food sources like tomatoes. However, when consumed in excess, especially from multiple sources—it can bind with minerals like calcium and form oxalate crystals. These crystals may contribute to the formation of kidney stones, especially in people who are already at risk.

But don’t worry—eating a few tomatoes or adding tomato puree to your curry won’t harm you. In fact, tomatoes are loaded with nutrients like Vitamin C, potassium, folate, and antioxidants like lycopene, making them an overall healthy choice. The key is to enjoy them as part of a balanced diet.

What Other Acids Are Found in Tomatoes?

Although oxalic acid is predominant, tomatoes also contain citric acid and malic acid, which contribute to the overall taste. Citric acid gives a sharp sourness and is the same acid found in lemons and oranges. Malic acid, which is commonly found in apples, adds a mild tart flavor.

Together, these acids not only add to the flavor but also help preserve the freshness of tomatoes and tomato-based products. That’s one reason why ketchup and tomato sauce have a long shelf life—they’re naturally acidic, which prevents bacterial growth.

Quick Facts About Tomatoes and Oxalic Acid

• Predominant acid in tomatoes: Oxalic acid
• Other acids present: Citric acid, Malic acid
• Health benefits: Rich in lycopene, Vitamin C, potassium
• Caution: People with kidney stones or GERD may need to limit intake
• Best eaten: Raw, cooked, or as juice, sauce, or puree

Summary

Question: Which one of the following Acids is Predominantly Found in Tomatoes?
Answer: Oxalic Acid is Predominantly Found in Tomatoes.
Tomatoes owe much of their flavor to oxalic acid, the predominant acid found in them. While oxalic acid plays a protective role for the plant and adds a tangy flavor, it’s generally harmless in the amounts we consume. Tomatoes are packed with nutrients and can be part of a healthy diet unless advised otherwise by a doctor.

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