Lemon fruits (Citrus aurantiifotia Gristm. & Panzer Swingle) is often used by people as a flavor enhancer in foods and to etiminate the fishy odor of, shellfish and other seafood. The main content of orange juice is citric acid. Citric acid can function as a metal chelator. By immersing the clams inio the lemon water solution are expected to form complexes between citric acid and metal in the f…