RT Journal Article
T1 Preservative Effect of Aqueous and Ethanolic Extracts of the Macroalga Bifurcaria bifurcata on the Quality of Chilled Hake (Merluccius merluccius)
A1 Miranda López, José Manuel
A1 Zhang, Bin
A1 Barros Velázquez, Jorge
A1 Aubourg Martínez, Santiago Pedro
K1 Refrigerated hake
K1 Bifurcaria bifurcata
K1 Aqueous and ethanolic extracts
K1 Microbial activity
K1 Lipid damage
K1 Quality enhancement
AB This work addressed the preservative behaviour of different icing media containing extracts from the alga Bifurcaria bifurcata. A comparative study of the antimicrobial and antioxidant effects of aqueous and ethanolic extracts of this macroalga was carried out. Whole hake (Merluccius merluccius) pieces were stored in ice containing either kind of extract and analysed for quality changes throughout a 13-day storage period. A progressive loss of microbial and biochemical quality was detected in all batches as chilling time increased. A significant inhibitory effect (p < 0.05) on microbial activity could be observed as a result of including the aqueous (lowering of psychrotrophic and lipolytic counts and pH value) and ethanolic (lowering of psychrotrophic and lipolytic counts) extracts. Additionally, both kinds of extract led to a substantial inhibition (p < 0.05) in the lipid hydrolysis rate (formation of free fatty acids), greater in the case of the batch containing ethanolic extract. Concerning lipid oxidation, a similar inhibitory effect (p < 0.05) on the formation of secondary compounds (thiobarbituric acid substances) was noticed in fish specimens corresponding to both alga extracts; however, more (p < 0.05) peroxide formation was detected in fish corresponding to the ethanolic extract batch. A preservative effect can be concluded for both kinds of extract; this effect agrees with previous studies reporting the presence of hydrophilic and lipophilic bioactive compounds in B. bifurcata
PB MDPI
YR 2021
FD 2021
LK http://hdl.handle.net/10347/26677
UL http://hdl.handle.net/10347/26677
LA eng
NO Molecules 2021, 26(12), 3774; https://doi.org/10.3390/molecules26123774
NO This research was funded by CONSEJO SUPERIOR DE INVESTIGACIONES CIENTÍFICAS (CSIC, Spain), GRANT NUMBER 2013-70E001
DS Minerva
RD 28 abr 2026