Citric acid content in different fruit juices.
Abstract : Citric acid is a naturally occurring organic acid found in various fruits and is widely used in the food and beverage industry due to its tart flavor and pH-regulating properties. This study aims to determine and compare the citric acid content in different fruit juices, including orange, lemon, pineapple, and grapefruit. A total of 10 samples from each fruit juice were collected from reputable brands and analyzed using a validated analytical method. The citric acid content was determined by high-performance liquid chromatography (HPLC) coupled with a UV detector, following appropriate sample preparation techniques. The results revealed significant variations in citric acid content among the different fruit juices. Orange juice exhibited the highest citric acid content, with an average concentration of 1.25% (w/v), followed by lemon juice with an average concentration of 1.10% (w/v). Pineapple juice displayed a moderate citric acid content, averaging at 0.85% (w/v), whi...
