eng Science and Education Publishing Journal of Food and Nutrition Research 2333-1240 2023-07-10 11 7 461 464 10.12691/jfnr-11-7-1 JFNR20231171 article Syed Mubasher Hussain 1 Arjumand Iqbal Durrani 1 Muhammad Saleem 2 Sahar Ahmed Idris 3 Department of Chemistry, University of Engineering and Technology, Lahore, Pakistan Department of Basic & Applied Chemistry, Faculty of Science and Technology, University of Central Punjab, Pakistan Department of Industrial Engineering, King Khalid University, Saudi Arabia Fruit wastes have attained considerable interest in the modern trading industry. Globally, almost 50% of the fruits agriculturally produced are processed in the beverage industry for juices, and almost 25 million tons of fruit wastes are being generated only from citrus fruits. In Pakistan, in the beverage industry, are being processed 34% of Citrus fruits, so a large volume of waste is being produced annually. The basic aim of the research work was to evaluate the potential bioactive components especially vitamin C and phenolic contents. The fruit wastes of five species of the citrus family selected for the research. Vitamin C and the Phenolic contents were estimated by High-performance liquid chromatography and Folin Ciocalteau respectively. The Grapefruit showed the highest contents of vitamin C i.e. 114.92 ± 0.36mg/100g and 110.56 ± 0.415mg/100g in pulp and peel respectively. Similarly the peel of oranges showed highest contents of phenolic compounds as compare to the peels of the other members of citrus family i.e. 155.1165 ± 0.1355mg/100g while the pulp of fruiter showed the highest concentration of phenolic compounds i.e. 119.9342 ± 0.194mg/100g as compare to the pulp of other citrus members. Due to the presence of a reasonable amount of Vitamin C and phenolic contents in fruit peel and pulp samples of citrus family, it can be concluded that the result of the present research would be fruitful for the treatment of deficiencies of these bioactive compounds. http://pubs.sciepub.com/jfnr/11/7/1/jfnr-11-7-1.pdf RDA GDP GAE UV-Visible Nutraceutical