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Advisor(s)
Abstract(s)
Food waste is a global and growing problem that is gaining traction due to its environmental, ethical, social, and economic repercussions. Between 2022 and 2027, the worldwide papaya market is expected to have a huge increase, meaning a growth in organic waste, including peels and seeds. Thus, this study evaluated the potential use of peels and seeds of two mature papaya fruits as a source of bioactive compounds, converting these by-products into value-added products. Proximate analysis (AOAC methods), mineral content (ICP-MS), free sugars (HPLC-ELSD), fatty acid composition (GC-FID), vitamin E profile (HPLC-DAD-FLD), and antioxidant activity (DPPH and FRAP assays) were evaluated. Both by-products showed high total protein (20–27%), and dietary fiber (32–38%) contents. Papaya peels presented a high ash content (14–16%), indicating a potential application as a mineral source. 14 fatty acids were detected, with α-linolenic acid (30%) as the most abundant in the peels and oleic acid (74%) in the seeds. Both by-products showed high antioxidant activity. Conclusion: Papaya by-products display great potential for industrial recovery and application, such as formulation of new functional food ingredients.
Description
Keywords
Papaya seeds and peel Nutritional composition Fiber contents Mineral profile Vitamin E Phytochemical composition Antioxidant activity
Citation
Vinha, A. F., Costa, A. S. G., Espírito Santo, L., Ferreira, D. M., Sousa, C., Pinto, E., Almeida, A., & Oliveira, M. B. P. P. (2024). High-value compounds in papaya by-products (Carica papaya L. var. Formosa and Aliança): Potential sustainable use and exploitation. Plants, 13(7), Artigo 7. https://doi.org/10.3390/plants13071009