Determination of Ascorbic Acid Concentration in Commercially Available Fruit Drinks in Bangladesh

Aim: Ascorbic acid (vitamin C) is the most important food constituent because of its antioxidant and functional activity. The study aims to determine the Vitamin C content in commercially available fruit drinks collected from selected shops in Bangladesh.

Study Design: This study is an experimental study.

Place and Duration of Study: The present study was conducted in the food analysis laboratory of Department Food Technology and Nutrition Science, Noakhali Science and Technology University, from January 2019 to May 2019. In the present study, a total of 22 branded different fruit drinks samples (orange, mango, lichi) were collected from the local market of Noakhali, Bangladesh.

Methodology: Vitamin C was analyzed with the titrimetric method and Sugar content, pH was also successfully determined by refractometer, pH meter respectively.

Results: The analyzed Vitamin C was found in the range of 2.96 to 70 mg/100 ml. Sugar content, pH was also successfully determined from the samples. The majority of the samples were found less in vitamin C concentration while only two samples (samples 3, 18) were found high the vitamin C concentration.

Conclusion: From the above study, titrimetric analysis proves itself as a scientific method in the determination of vitamin C concentration in the samples.