Assuming that this is true: My value of 5. Because my result is almost at the top of the range, it is most likely that my experimental value is greater than the actual value.
Although other voltammetric methods e. The concentrations of ascorbic acid in fruit juice determined by cyclic voltammetry are in good agreement with the data obtained by a classical volumetric method Table 2.
The obtained results are also in good agreement with the data reported in literature regarding the content of ascorbic acid in citrus fruits. Thus, the reported values for lemon are These values are in accordance with those we obtained for orange and lemon juice fruit squeezing The results obtained in this study show that cyclic voltammetry can be successfully used as part of quality management in food industry, for assessing the vitamin C content in natural fruit juice and soft drinks.
The results prove why, recently, this technique has been more and more preferred to the previously applied methods, as it is characterized by accuracy, rapidity, good specificity, and sensitivity, and also by the simplicity of the required equipment and procedure. Acknowledgment This work was performed with the support of the Romanian National Agency for Research, in the frame of the Research Project no.
View at Google Scholar M. View at Google Scholar N.
View at Google Scholar P. View at Google Scholar A.Vitamin C (ascorbic acid) is an antioxidant that is essential for human nutrition. Vitamin C deficiency can lead to a disease called scurvy, which is characterized by abnormalities in the bones and teeth.
Journal of Analytical Methods in Chemistry is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles reporting methods and instrumentation in chemical analysis, and their application to real-world problems.
You May Also Find These Documents Helpful. Analysis of commercial vitamin C tablets Objective To determine the vitamin C content in commercial vitamin C tablets by titration between vitamin C (ascorbic acid) & iodine solution.
Hence, compare this data with the manufacturer's specification. Principle In this analysis. Rich in Ascorbic Acid Better known as vitamin C, ascorbic acid is the second type of acid found in lemons and limes in rich supply. The juice of one lemon provides almost 20 milligrams of vitamin C, which is 30 percent of the daily value.
Titration Experiment. The citric acid content of a lemon juice can be determined through a titration of the juice. This process involves a certain volume of juice having a base of a known concentration added to it until a point is reached where all of the acid in the juice .
Ascorbic acid was determined for 10 species of citrus: sour and sweet orange, umbilical orange, novel orange, lime, lemon, pink and white grapefruit, aeglemarmelos, bergamot, sour and sweet tangerines and clementine. The average ascorbic acid was the highest in Shahdad’s citrus fruits.