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Antimicrobial and antioxidant activities of cactus polyphenols extract on seafood preservation ArchiMer
Besbes, Nadia; Joffraud, Jean-jacques; Ben Khemis, Ines; Amri, Mohamed; Sadok, Saloua.
The present work investigated the antimicrobial and antioxidant activities of polyphenols extracted from cactus (Opuntia ficus indica) fruit-peels on sardine fillets during refrigerated storage. Biochemical, microbiological and sensorial indicators of treated sardine fillets; were studied comparatively to control lot. Microbial communities were characterized using phenotyping and molecular identification of bacterial isolates; and culture-independent method (PCR-TTGE) for fingerprinting of bacterial DNA extracted from fillets. A principal component analysis (PCA) of all the studied descriptors and variables revealed that discrimination along first principal component (PC1) was mainly correlated positively with peroxidation level and storage time but...
Tipo: Text Palavras-chave: Cactus polyphenols; PCR-TTGE; Biochemical indicators; PCA analysis; Sardine fillets; Sensorial analysis.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00368/47881/47897.pdf
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Connecting organic to mineral: How the physiological state of an ecosystem-engineer is linked to its habitat structure ArchiMer
Curd, Amelia; Pernet, Fabrice; Corporeau, Charlotte; Delisle, Lizenn; Firth, Louise B.; Nunes, Flavia; Dubois, Stanislas.
The honeycomb worm Sabellaria alveolata is capable of building extensive bioconstructions, including what are currently considered Europe’s largest biogenic reefs. The size and volume of these bioconstructions, however, vary greatly, such that not all habitats engineered by S. alveolata may be easily identified as reefs. Given that European environmental legislation protects marine habitats that are classified as “reefs”, it is important to identity a clear set of definition criteria. Furthermore, quantifiable and unequivocal criteria are also needed to evaluate the ecological (health) state of these reefs, in order to best monitor and protect them. Here we propose new terminology to describe the physical appearance of these bioconstructions and attempt to...
Tipo: Text Palavras-chave: Biochemical indicators; Health; Ecological status; Sabellaria alveolata; Biogcnic reef; Engineer species.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00464/57608/60175.pdf
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