Preservative Effect of Aqueous and Ethanolic Extracts of the Macroalga <i>Bifurcaria bifurcata</i> on the Quality of Chilled Hake (<i>Merluccius merluccius</i>)
This work addressed the preservative behaviour of different icing media containing extracts from the alga <i>Bifurcaria bifurcata</i>. A comparative study of the antimicrobial and antioxidant effects of aqueous and ethanolic extracts of this macroalga was carried out. Whole hake (<i&g...
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| Format: | Article |
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MDPI AG
2021-06-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/26/12/3774 |
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| author | José M. Miranda Bin Zhang Jorge Barros-Velázquez Santiago P. Aubourg |
| author_facet | José M. Miranda Bin Zhang Jorge Barros-Velázquez Santiago P. Aubourg |
| author_sort | José M. Miranda |
| collection | DOAJ |
| description | This work addressed the preservative behaviour of different icing media containing extracts from the alga <i>Bifurcaria bifurcata</i>. A comparative study of the antimicrobial and antioxidant effects of aqueous and ethanolic extracts of this macroalga was carried out. Whole hake (<i>Merluccius merluccius</i>) 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 (<i>p</i> < 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 (<i>p</i> < 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 (<i>p</i> < 0.05) on the formation of secondary compounds (thiobarbituric acid substances) was noticed in fish specimens corresponding to both alga extracts; however, more (<i>p</i> < 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 <i>B. bifurcata</i>. |
| first_indexed | 2024-03-10T10:12:19Z |
| format | Article |
| id | doaj.art-0a7efdaff77940ee84ea54ce87613ab0 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T10:12:19Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-0a7efdaff77940ee84ea54ce87613ab02023-11-22T01:03:52ZengMDPI AGMolecules1420-30492021-06-012612377410.3390/molecules26123774Preservative Effect of Aqueous and Ethanolic Extracts of the Macroalga <i>Bifurcaria bifurcata</i> on the Quality of Chilled Hake (<i>Merluccius merluccius</i>)José M. Miranda0Bin Zhang1Jorge Barros-Velázquez2Santiago P. Aubourg3Department of Analytical Chemistry, Nutrition and Food Science, School of Veterinary Sciences, University of Santiago de Compostela, Avenida Carvallo Calero, s/n, 27002 Lugo, SpainKey Laboratory of Health Risk Factors for Seafood of Zhejiang Province, College of Food Science and Pharmacy, Zhejiang Ocean University, No 1, Haida South Road, 1, Lincheng Changzhi, Zhoushan 316022, ChinaDepartment of Analytical Chemistry, Nutrition and Food Science, School of Veterinary Sciences, University of Santiago de Compostela, Avenida Carvallo Calero, s/n, 27002 Lugo, SpainDepartment of Food Science and Technology, Marine Research Institute (CSIC), c/E. Cabello 6, 36208 Vigo, SpainThis work addressed the preservative behaviour of different icing media containing extracts from the alga <i>Bifurcaria bifurcata</i>. A comparative study of the antimicrobial and antioxidant effects of aqueous and ethanolic extracts of this macroalga was carried out. Whole hake (<i>Merluccius merluccius</i>) 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 (<i>p</i> < 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 (<i>p</i> < 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 (<i>p</i> < 0.05) on the formation of secondary compounds (thiobarbituric acid substances) was noticed in fish specimens corresponding to both alga extracts; however, more (<i>p</i> < 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 <i>B. bifurcata</i>.https://www.mdpi.com/1420-3049/26/12/3774refrigerated hake<i>Bifurcaria bifurcata</i>aqueous and ethanolic extractsmicrobial activitylipid damagequality enhancement |
| spellingShingle | José M. Miranda Bin Zhang Jorge Barros-Velázquez Santiago P. Aubourg Preservative Effect of Aqueous and Ethanolic Extracts of the Macroalga <i>Bifurcaria bifurcata</i> on the Quality of Chilled Hake (<i>Merluccius merluccius</i>) Molecules refrigerated hake <i>Bifurcaria bifurcata</i> aqueous and ethanolic extracts microbial activity lipid damage quality enhancement |
| title | Preservative Effect of Aqueous and Ethanolic Extracts of the Macroalga <i>Bifurcaria bifurcata</i> on the Quality of Chilled Hake (<i>Merluccius merluccius</i>) |
| title_full | Preservative Effect of Aqueous and Ethanolic Extracts of the Macroalga <i>Bifurcaria bifurcata</i> on the Quality of Chilled Hake (<i>Merluccius merluccius</i>) |
| title_fullStr | Preservative Effect of Aqueous and Ethanolic Extracts of the Macroalga <i>Bifurcaria bifurcata</i> on the Quality of Chilled Hake (<i>Merluccius merluccius</i>) |
| title_full_unstemmed | Preservative Effect of Aqueous and Ethanolic Extracts of the Macroalga <i>Bifurcaria bifurcata</i> on the Quality of Chilled Hake (<i>Merluccius merluccius</i>) |
| title_short | Preservative Effect of Aqueous and Ethanolic Extracts of the Macroalga <i>Bifurcaria bifurcata</i> on the Quality of Chilled Hake (<i>Merluccius merluccius</i>) |
| title_sort | preservative effect of aqueous and ethanolic extracts of the macroalga i bifurcaria bifurcata i on the quality of chilled hake i merluccius merluccius i |
| topic | refrigerated hake <i>Bifurcaria bifurcata</i> aqueous and ethanolic extracts microbial activity lipid damage quality enhancement |
| url | https://www.mdpi.com/1420-3049/26/12/3774 |
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