It is used in making pickles.
It is used in salads.
It is also used in jams.Lemon salt (citric acid) is an acid produced to keep food fresher. It is generally thought to be produced from lemon in society, but it is not. Lemon salt is a colorless and crystalline stric acid obtained by chemical means.
Until a century ago, lemon salt, which was produced from citrus fruits and especially lemon juice, started to be produced synthetically from sugar beet in order to reduce the production cost.