RT info:eu-repo/semantics/article
T1 Development of a carotenoid-rich microalgae colorant by microencapsulation
A1 Nunes, Ana N.
A1 Monte, Joana
A1 Rodríguez Rojo, Soraya
A1 Nogueira, Isabel D.
A1 Gouveia, Luís F.
A1 Brazinha, Carla
A1 Matias, Ana A.
K1 Pigments
K1 Pigmentos
K1 Microalgae
K1 Microalgas
K1 Carotenoids
K1 Carotenoides
K1 Biotechnology
K1 Microencapsulation
K1 Solubility enhancement
K1 Biomaterials
K1 Biomateriales
K1 Food - Biotechnology
K1 Colorants
K1 Alimentos - Colorantes
K1 3303 Ingeniería y Tecnología Químicas
K1 3308 Ingeniería y Tecnología del Medio Ambiente
K1 3309 Tecnología de Los Alimentos
K1 3390.01 Biotecnología de Microalgas
AB Dunaliella salina has been recognized as an excellent biomass source of carotenoid, which can be used as a natural orange coloring agent for food products. The most eco-friendly approach for extracting carotenoid is through supercritical carbon dioxide extraction, as it yields highly concentrated extracts while preventing pigment thermal degradation. However, there are limitations when a lipophilic extract is considered a food ingredient, in particular very difficult handling and low solubility in water-based products. The aim of this study was to develop a hydrosoluble form of a natural carotenoid-rich extract recovered from algae biomass within a biorefinery concept to be incorporated in aqueous-based food products. A two-step process was developed, starting with the emulsification of the supercritical extract into a mixture of maltodextrin and gum arabic, using soy lecithin as an emulsifier. The emulsification was followed by a spray-drying step. The impact of process variables on the encapsulation yield, efficiency, emulsion properties, and particle characteristics was studied. The resulting particles exhibited an intense orange color and good water dispersibility, facilitating uniform yellow coloring when incorporated into an aqueous-based product. Overall, spray-drying emulsions containing carotenoids derived from Dunaliella salina prove to be a promising strategy for the global market demand for natural colorants.
PB MDPI
SN 2079-6447
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/67285
UL https://uvadoc.uva.es/handle/10324/67285
LA eng
NO Colorants, 2024, Vol. 3, Nº. 1, págs. 39-52
NO Producción Científica
DS UVaDOC
RD 13-sep-2024