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Exploring Camellia oleifera Abel seed cake as sustainable source of protein for food applications: A review
Abel Wend-Soo Zongo1, Chengyu Jin2, Ningxiang Yu3
1College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China; Center for Research in Biological Sciences, Food and Nutrition, Department of Biochemistry and Microbiology, University Joseph Ki-Zerbo, BP 7021 Ouagadougou 03, Burkina Faso.
Abstract:
The demand for sustainable plant-based protein is rising due to concerns over the environmental impact of animal-based protein. One promising yet overlooked protein source is the seed cake generated from Camellia oleifera oil extraction (COSC), which contains 14-20 % crude protein. COSC protein (COSCP) exhibit excellent nutritional and functional properties making it a promising ingredient for innovative food products. However, its adoption remains limited. This review discusses COSCP extraction methods, functional properties, and food applications to promote its broader utilization. It also examined how oil extraction methods influence COSCP functional characteristics and explores modification techniques to enhance its functionality. COSCP has excellent functional properties, making it suitable for use as emulsifier, foaming, and gelling agents in food systems. However, cross-linking of COSCP with saponins and phenolics during seed processing compromise the protein yield, purity, and functionality and need to be addressed to fully unlock the potential of COSCP in food applications.
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