Organic Acid Profiles in the Juice of Fig Fruits

To elucidate the organic acid composition and content of fig (Ecus carica L.), a gas chromatography was performed for juices of 20 fig varieties. Acetic, butyric, oxalic, malonic, succinic, fumaric, malic and citric acids were consistently detected throughout fruit growth. Citric acid was predominant , followed by malic acid. Propionic and lactic acids were not detected. Glyoxylic and t,artaric acids were detected only in some varieties and in certain stages of fruit growth. Furthermore, a relationship between the titratable acidity and the organic acid composition was discussed.