Benzoic acid is lipophilic and thus moves freely across the cell membrane. Uptake of benzoic acid is closely linked with its interference with the membrane function and metabolic activities.
Benzoic acid is used as such and in the form of its sodium salt, sodium benzoate, which has better water solubility.
Because of its lipophilic nature, benzoic acid affects the cellular membrane process, thus changing membrane fluidity.
Benzoic acid most inhibitory at acid pH, benzoic acid particularly is used mainly to inhibit yeast and moods in acidic foods.
Several groups of fungi and bacteria, including Aspergillums niger, species of Rhizopus and Mucor, Pseudomonas putida, and Bacillus species, can metabolize benzoic acid.
Benzoic acid may be used to inhibit mold and bacterial growth in some fruit juices, oleomargarines, jellies, pickles, and catsup. It also be noted that benzoic acid is a natural component of cranberries.
Antispoilage agent of benzoic acid
