RT journal article
T1 Feed Additives Based on N. gaditana and A. platensis Blend Improve Quality Parameters of Aquacultured Gilthead Seabream (Sparus aurata) Fresh Fillets
A1 Sáez, María Isabel
A1 Galafat, Alba
A1 Tapia Paniagua, Silvana Teresa
A1 Martos Sitcha, Juan Antonio
A1 Alarcón López, Francisco Javier
A1 Martínez Moya, Tomás Francisco
A2 Biología
K1 enzyme hydrolysates
K1 feed additives
K1 fillet quality
K1 finishing diets
K1 microalgal biomass
AB The aim of this research is to explore the potential effects of two microalgae-based additives included in finishing feeds on the quality and shelf-life of seabream fillets. In a 41-day feeding trial, seabream specimens were fed with experimental aquafeeds containing 10% of the bioactive supplements. These additives consisted of a blend of Nannochloropsis gaditana and Arthrospira platensis biomass, which was utilized as either raw (LB-CB) or enzymatically hydrolyzed (LB-CBplus). A control group received a microalgae-free diet. The results showed that the functional aquafeeds improved the nutritional profile of seabream fillets, increasing protein and PUFA-n3 contents while reducing the atherogenic index, especially for the LB-CBplus treatment. LB-CBplus also enhanced the texture parameters (hardness and chewiness) of fillets during the initial 5 days under cold storage. Regarding skin pigmentation, fillets showed increased greenish and yellowish coloration compared to control fish, mostly attributed to the inclusion of crude algal biomass (LB-CB). Moreover, diets enriched with microalgae additives effectively delayed muscle lipid oxidation processes under refrigeration for up to 12 days, with LB-CBplus exhibiting higher antioxidant effects. These findings highlight the potential of microalgae-based additives to enhance both the nutritional and organoleptic quality of seabream fillets.
PB MDPI
SN 2410-3888
YR 2024
FD 2024
LK http://hdl.handle.net/10498/35597
UL http://hdl.handle.net/10498/35597
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 13-nov-2026