Technological Parameters, Anti-Listeria Activity, Biogenic Amines Formation and Degradation Ability of L. plantarum Strains Isolated from Sheep-Fermented Sausage
Articolo
Data di Pubblicazione:
2021
Citazione:
Technological Parameters, Anti-Listeria Activity, Biogenic Amines Formation and Degradation Ability of L. plantarum Strains Isolated from Sheep-Fermented Sausage / Mangia, Nicoletta P.; Cottu, Michele; Mura, Maria E.; Murgia, Marco A.; Blaiotta, Giuseppe. - In: MICROORGANISMS. - ISSN 2076-2607. - 9:9(2021), p. 1895. [10.3390/microorganisms9091895]
Abstract:
The aim of this work was to identify and characterize, from a technological and safety
point of view, the lactic acid bacteria (LAB) isolated from traditional sheep-fermented sausage. First,
LABs were identified then were screened for some technological parameters such as acidifying and
growth ability, proteolytic and lipolytic activity and for antimicrobial activity. Finally, biogenic amine
production and degradation abilities were also evaluated. This research reveals the predominance
of Lactiplantibacillus (L.) plantarum on LAB community. Almost all L. plantarum strains were active
against Listeria monocytogenes strains (inhibition zone diameters > 1 cm). None of the tested strains
were positive in histidine (hdcA), lysine (ldc) and tyrosine (tyrdc) decarboxylase genes and only
one (L. plantarum PT9-2) was positive to the agmatine deiminase (agdi) gene. Furthermore, given
the positive results of the sufl (multi-copper oxidase) gene detection, all strains showed a potential
degradation ability of biogenic amines.
point of view, the lactic acid bacteria (LAB) isolated from traditional sheep-fermented sausage. First,
LABs were identified then were screened for some technological parameters such as acidifying and
growth ability, proteolytic and lipolytic activity and for antimicrobial activity. Finally, biogenic amine
production and degradation abilities were also evaluated. This research reveals the predominance
of Lactiplantibacillus (L.) plantarum on LAB community. Almost all L. plantarum strains were active
against Listeria monocytogenes strains (inhibition zone diameters > 1 cm). None of the tested strains
were positive in histidine (hdcA), lysine (ldc) and tyrosine (tyrdc) decarboxylase genes and only
one (L. plantarum PT9-2) was positive to the agmatine deiminase (agdi) gene. Furthermore, given
the positive results of the sufl (multi-copper oxidase) gene detection, all strains showed a potential
degradation ability of biogenic amines.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
sheep meat; fermented sausage; L. plantarum; technological characterization; Anti-Listeria
activity; biogenic amines; decarboxylase genes; multi-copper oxidase
Elenco autori:
Mangia, Nicoletta P.; Cottu, Michele; Mura, Maria E.; Murgia, Marco A.; Blaiotta, Giuseppe
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