Nutritional Valorization of Cassava Leaf Byproducts
Summary
Cassava leaves represent a substantial by-product of the global cassava root harvest and are increasingly recognised as a valuable source of protein, vitamins, minerals and bioactive phytochemicals. Although traditionally under-utilised, these leafy residues can be transformed into high-value ingredients through targeted processing to remove inherent cyanogenic glycosides and other anti-nutritional factors. Advances in mechanical extraction, thermal treatment and membrane separation have enabled the production of protein concentrates, nutrient-rich juices and fibrous press cakes suitable for human food, animal feed and functional formulations. By refining detoxification protocols and preserving essential nutrients, researchers are addressing malnutrition in cassava-dependent regions, fostering sustainable waste management and contributing to a circular economy. Practical applications range from fortified flours and vegetable fortifiers to aquafeed supplements and antioxidant-rich extracts, demonstrating the global significance of leaf valorisation for food security, rural livelihoods and agro-industrial innovation.
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Nutritional Valorization of Cassava Leaf Byproducts publication trend
The graph below shows the total number of articles in nutritional valorization of cassava leaf byproducts across all publications each year (not limited to Nature Index journals).
Technical terms
Cyanogenic glycosides: Naturally occurring compounds in cassava leaves that release hydrogen cyanide when hydrolysed.
Bioaccessibility: Proportion of a nutrient released from the food matrix during digestion and available for absorption.
Ultrafiltration: Membrane separation technique that uses pressure to fractionate molecules by size, isolating proteins from smaller solutes.
Press cake: Solid residue remaining after mechanical extraction of juice from processed plant material.
Protein concentrate: Product with elevated protein content obtained by removing non-protein components through processing.
Anti-nutritional factors: Compounds such as tannins or phytates that can reduce nutrient absorption or bioavailability.
References
- Bioaccessibility of Vitamins and Minerals in Processed Tubers and Leaves of Manihot esculenta Crantz Varieties. Journal of Food Quality (2024).
- Partitioning of Proteins and Anti-Nutrients in Cassava (Manihot esculenta Crantz) Leaf Processing Fractions after Mechanical Extraction and Ultrafiltration. Foods (2021).
- Nutrition, Healthcare Benefits and Phytochemical Properties of Cassava (Manihot esculenta) Leaves Sourced from Three Countries (Reunion, Guinea, and Costa Rica). Foods (2022).
- Influence of Temperature and Screw Pressing on the Quality of Cassava Leaf Fractions. Agriculture (2021).
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