Evaluation of the Physicochemical Properties of Fermented Sausages with Staphylococcus xylosus and Lactobacillus Sakei

2019 ◽  
Vol 18 (11) ◽  
pp. 1068-1074
Author(s):  
Leidys Sarmiento Ortiz ◽  
Leidy Laura Sinning ◽  
Piedad M. Montero Castillo
2015 ◽  
Vol 4 (4) ◽  
Author(s):  
Carmela Amadoro ◽  
Franca Rossi ◽  
Michele Piccirilli ◽  
Giampaolo Colavita

In this study bacterial isolates from <em>Ventricina del Vastese</em> sausage, previously identified as <em>Lactobacillus (L.) sakei</em>, were characterised genotypically, physiologically and on the basis of some technologically relevant traits. A total of 70 <em>L. sakei</em> isolates from sausages manufactured with spontaneous fermentation in the same producing plant were taken into account. Six genotypic groups were distinguished on the basis of Rep-polymerase chain reaction with the GTG<sub>5</sub> primer, some of which were found only in the sausages ripened at temperatures lower than 10°C for the first two months and lower than 16°C for the remaining three months, according to the traditional ripening process. Six strains were selected as representative of the genotypic profiles and further characterised. A high diversity in their fermentation profiles was observed, and different groups were separated on the basis of growth and acidifying capacity in meat extract. None of the strains produced histamine or tyramine <em>in vitro</em>. One strain was able to slightly inhibit <em>Listeria (L.) monocytogenes</em> and <em>L. innocua</em> and all six strains were able to slightly inhibit <em>Enterobacteriaceae</em> isolated from <em>Ventricina del Vastese</em> sausages <em>in vitro</em>. Results showed that most <em>L. sakei</em> strains can have a role in improving the safety of low acidity fermented sausages, even though a limited acidifying capacity was observed in a meat-like substrate, and that <em>L. sakei</em> strains able to produce biogenic amines are unlikely to occur in spontaneously fermented meat products.


2000 ◽  
Vol 63 (11) ◽  
pp. 1556-1562 ◽  
Author(s):  
SARA BOVER-CID ◽  
MARIA IZQUIERDO-PULIDO ◽  
M. CARMEN VIDAL-CAROU

Several combinations of an amine-negative Lactobacillus sakei strain, along with proteolytic Staphylococcus carnosus or Staphylococcus xylosus strains, were used to study the influence of mixed starter cultures on biogenic amine production during the manufacture of dry fermented sausages. Changes in pH, water content, proteolysis, microbial counts, and biogenic amine contents were simultaneously examined in a spontaneously fermented batch and in three mixed starter-mediated batches. A double-controlled microbial charge initially inoculated as mixed starter culture of L. sakei and Staphylococcus spp. (all amine-negative strains) drastically reduced tyramine, cadaverine, and putrescine accumulation. No production of other aromatic amines such as histamine, phenylethylamine, or tryptamine was observed in any batch. The polyamines, spermine and spermidine, were found in raw materials and their levels decreased slightly in the spontaneously fermented batch. No correlation between proteolysis and biogenic amine production was observed. The use of proper technological conditions favoring starter development and the use of the raw materials with good hygienic quality make it possible to produce fermented sausages nearly free of biogenic amines.


2020 ◽  
Vol 8 (5) ◽  
pp. 686
Author(s):  
Igor Dias ◽  
Marta Laranjo ◽  
Maria Eduarda Potes ◽  
Ana Cristina Agulheiro-Santos ◽  
Sara Ricardo-Rodrigues ◽  
...  

Traditional smoked fermented sausages are highly appreciated in Portugal and are mostly manufactured according to traditional procedures. The aim of the present work was to evaluate the effect of autochthonous starter cultures on the safety and quality of a smoked fermented sausage, Painho da Beira Baixa (PBB), preserving its sensory quality. Physicochemical parameters, namely pH and water activity (aW), microbiological parameters, biogenic amines, colour, texture profile and sensory attributes were assessed. Different starters were selected based on our previous work. Staphylococcus equorum S2M7, Staphylococcus xylosus CECT7057, Lactobacillus sakei CV3C2, Lactobacillus sakei CECT7056 and a yeast strain (2RB4) were co-inoculated in meat batters at defined concentrations. Starters had a significant effect on the reduction of pH. Enterobacteria and Listeria monocytogenes were not detected in inoculated end-product sausages. Moreover, sausages inoculated with S. equorum S2M7/L. sakei CV3C2/yeast 2RB4 showed a significant reduction in the total content of biogenic amines. No significant differences between treatments were observed for colour and texture parameters, except for adhesiveness. The studied starters did not compromise the sensory characteristics of PBB. To our knowledge, this is the first comprehensive study on the quality and safety of this type of smoked fermented sausage from the central region of Portugal.


2001 ◽  
Vol 64 (3) ◽  
pp. 367-373 ◽  
Author(s):  
SARA BOVER-CID ◽  
MARIA IZQUIERDO-PULIDO ◽  
M. CARMEN VIDAL-CAROU

The effectiveness of an amine-negative starter culture (Lactobacillus sakei CTC494) in the reduction of biogenic amine production during the ripening of fermented sausages was examined. Four batches were manufactured in parallel:spontaneously fermented and starter-mediated sausages were manufactured from two lots of raw materials of different hygienic quality. Besides the biogenic amine contents, changes in the microbial counts, nitrogenous fractions, pH, and water content were measured at several sampling points during the ripening process. In sausages manufactured from good quality meat, the starter strain of L. sakei reduced and even inhibited biogenic amine accumulation during sausage fermentation, the end products showing extremely low biogenic amine contents (tyramine levels less than 15 mg/kg of dry matter and putrescine and cadaverine levels less than 5 mg/kg of dry matter). Nevertheless, starter-mediated sausages made from poorer-quality raw materials showed much higher amine contents (308, 223, and 36 mg/kg of dry matter of cadaverine, tyramine, and putrescine, respectively), which were only slightly lower than those of the spontaneously fermented sausages made from the same raw materials. The relatively high bacterial numbers of raw materials of poorer-hygienic quality diminished the beneficial effect of the starter strain. Therefore, the effectiveness of the starter was strongly dependent on the hygienic quality of the raw materials used.


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