Sustainable Green Extraction of Carotenoid Pigments: Innovative Technologies and Bio-Based Solvents

Sustainable Green Extraction of Carotenoid Pigments: Innovative Technologies and Bio-Based Solvents

15 February 2024 | Ángeles Morón-Ortiz, Paula Mapelli-Brahm and Antonio J. Meléndez-Martínez
This review discusses the sustainable green extraction of carotenoid pigments using innovative technologies and bio-based solvents. Carotenoids, found in various food sources, are important for health due to their antioxidant and anti-inflammatory properties. The review highlights the need for greener extraction methods to reduce environmental impact and improve sustainability. It summarizes various extraction technologies, including ultrasound-assisted extraction (UAE), microwave-assisted extraction (MAE), pulsed electric field (PEF), pressurized liquid extraction (PLE), subcritical and supercritical fluid extraction, and enzyme-assisted extraction. Green solvents such as ethyl lactate, 2-methyltetrahydrofuran, natural deep eutectic solvents, and ionic liquids are also discussed as alternatives to traditional solvents. The review emphasizes the importance of life cycle assessment to evaluate the sustainability of these methods. While laboratory results are promising, scaling up to industrial applications remains a challenge. The use of green technologies and solvents is crucial for the sustainable recovery of carotenoids in biorefineries, aligning with the principles of green chemistry and sustainable practices in food science and industry.This review discusses the sustainable green extraction of carotenoid pigments using innovative technologies and bio-based solvents. Carotenoids, found in various food sources, are important for health due to their antioxidant and anti-inflammatory properties. The review highlights the need for greener extraction methods to reduce environmental impact and improve sustainability. It summarizes various extraction technologies, including ultrasound-assisted extraction (UAE), microwave-assisted extraction (MAE), pulsed electric field (PEF), pressurized liquid extraction (PLE), subcritical and supercritical fluid extraction, and enzyme-assisted extraction. Green solvents such as ethyl lactate, 2-methyltetrahydrofuran, natural deep eutectic solvents, and ionic liquids are also discussed as alternatives to traditional solvents. The review emphasizes the importance of life cycle assessment to evaluate the sustainability of these methods. While laboratory results are promising, scaling up to industrial applications remains a challenge. The use of green technologies and solvents is crucial for the sustainable recovery of carotenoids in biorefineries, aligning with the principles of green chemistry and sustainable practices in food science and industry.
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