Abstract
This research provides a comprehensive examination of fish oils obtained from different fish species in Cameroon. It meticulously evaluates their nutritional quality indices based on fatty acids profile and scrutinizes the impact of diverse pre-treatment procedures on these indices. The fatty acid profiles and nutritional quality indices of seventeen fish species were reviewed, with a focus on the impact of refrigeration, boiling, and drying. The use of both synthetic and natural antioxidants in preserving oil quality during drying was also examined. The oil from Fontitrygon margarita liver had the highest nutritional quality, followed by oils from the fillets of seven other species. However, oils from certain species were found to have poor nutritional quality due to an unacceptable polyunsaturated fatty acids/saturated fatty acids ratio, atherogenicity index hypocholesterolemic/hypercholesterolemic ratio, and other parameters. Interestingly, boiling was found to enhance the nutritional quality of fish oil, while refrigeration and drying appeared to degrade it. Natural antioxidants, especially aqueous spices extracts, proved to be as effective, if not better than synthetic ones in preserving oil quality. Overall, this research enhances our understanding of the health benefits of fish oils and offers valuable insights into optimal oil extraction and preservation practices.
Published Version
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