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Hydrolysis of raw fish proteins extracts by Carnobacterium maltaromaticum strains isolated from Argentinean freshwater fish.


ABSTRACT: Lactic acid bacteria (LAB) isolated from freshwater fish (hatcheries and captures) from Paraná river (Argentina) were analyzed by using culture-dependent approaches. The species belonging to Carnobacterium (C.) divergens, C. inhibens, C. maltaromaticum, C. viridans and Vagococcus (V.) salmoninarum were identify as predominant by RAPD-PCR and 16 s rRNA gene sequencing. C. maltaromaticum (H-17, S-30, B-42 and S-44) grew in raw fish extract and slightly reduced the medium pH (5.81-5.91). These strains exhibited moderate fish sarcoplasmic protein degradation (? 73 %) releasing small peptides and free amino acids, being alanine, glycine, asparagine and arginine concentrations increased in a higher extent (17.84, 1.47, 1.26 and 0.47 mg/100 mL, respectively) by S-44 strain at 96 h incubation. Interestingly C. maltaromaticum H-17 was able to inhibit Listeria monocytogenes. Results suggest that these strains would contribute to the development of new safe and healthy fishery products with improved nutritional and sensory characteristics.

SUBMITTER: Dallagnol AM 

PROVIDER: S-EPMC7811128 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature

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Hydrolysis of raw fish proteins extracts by <i>Carnobacterium maltaromaticum</i> strains isolated from Argentinean freshwater fish.

Dallagnol Andrea Micaela AM   Pescuma Micaela M   Espínola Natalia Gamarra NG   Vera Mariela M   Vignolo Graciela Margarita GM  

Biotechnology reports (Amsterdam, Netherlands) 20210106


Lactic acid bacteria (LAB) isolated from freshwater fish (hatcheries and captures) from Paraná river (Argentina) were analyzed by using culture-dependent approaches. The species belonging to <i>Carnobacterium</i> (<i>C</i>.) <i>divergens</i>, <i>C</i>. <i>inhibens</i>, <i>C</i>. <i>maltaromaticum</i>, <i>C</i>. <i>viridans</i> and <i>Vagococcus</i> (<i>V</i>.) <i>salmoninarum</i> were identify as predominant by RAPD-PCR and 16 s rRNA gene sequencing. <i>C. maltaromaticum</i> (H-17, S-30, B-42 an  ...[more]

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