caffeine extraction

How Are Tannins Removed Using Sodium Carbonate?

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How Are Tannins Removed Using Sodium Carbonate? When tannins are extracted into hot water, some of these compounds are partially hydrolyzed to form free gallic acid. … If sodium carbonate, a base, is added to tea water, these acids are converted to their sodium salts, which are highly soluble in water. What does sodium carbonate

What Is The Purpose Of Adding Sodium Carbonate To The Brewed Tea Prior To Extraction?

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What Is The Purpose Of Adding Sodium Carbonate To The Brewed Tea Prior To Extraction? Sodium carbonate The role of sodium carbonate in the isolation of caffeine is to act as a base. When tea leaves are boiled, tannins dissolve in the water as well as the caffeine. If a base wasn’t used, the tannins