Prokopov, Tsvetko, Milena Nicolova, and Donka Taneva. “Improved Carotenoid Extraction from Bulgarian Tomato Peels Using Ultrasonication”. The Annals of the University Dunarea de Jos of Galati. Fascicle VI - Food Technology 41, no. 1 (June 18, 2017): 41-49. Accessed July 3, 2024. https://gup.ugal.ro/ugaljournals/index.php/food/article/view/1317.