scholarly journals Detection of Enteric Viruses and Core Microbiome Analysis in Artisanal Colonial Salami-Type Dry-Fermented Sausages from Santa Catarina, Brazil

Foods ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1957
Author(s):  
Roberto Degenhardt ◽  
Doris Sobral Marques Souza ◽  
Leidiane A. Acordi Menezes ◽  
Gilberto Vinícius de Melo Pereira ◽  
David Rodríguez-Lázaro ◽  
...  

Microbial fermentation plays an important role in the manufacturing of artisanal sausages and can have major effects on product quality and safety. We used metagenomics and culture-dependent methods to study the presence of Hepatitis E virus (HEV) and Rotavirus A (RV-A), and fungal and bacterial communities, in artisanal Colonial salami-type dry-fermented sausages in Santa Catarina state, Brazil. Lactic acid bacteria (LAB) and yeast dominated the microbiome. Latilactobacillus sakei and Debaryomyces hansenii were ubiquitous and the most abundant species. The DNA of some foodborne pathogens was found in very low concentrations although viable cells of most of these species were undetectable by cultivation methods. The characteristics of the raw material and hygiene of the artisanal sausage manufacturing process resulted in high loads of beneficial microorganisms and the absence of HEV and RV-A viruses as determined by RT-qPCR assays. In conclusion, high LAB load in sausages was more relevant to preventing pathogen growth than the ripening time and/or physicochemical characteristics. However, the presence of Clostridium spp. and other pathogens in some samples must be taken into account for the development of future preservation methods; appropriate LAB starter cultures and health surveillance are required in the production process to prevent foodborne outbreaks.

Animals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 55 ◽  
Author(s):  
Martin Škrlep ◽  
Marjeta Čandek-Potokar ◽  
Nina Batorek-Lukač ◽  
Urška Tomažin ◽  
Mónica Flores

Dry-fermented sausages were produced in a traditional way, without addition of nitrites and starter cultures, from meat of an autochthonous breed (Krškopolje pig) raised either in a conventional indoor or organic husbandry system. Physicochemical and sensory analyses were performed at the end of processing to characterize their quality. Dry-fermented sausages from organic pork retained more moisture, which resulted in higher water activity and softer texture (instrumental and sensory). They were more oxidized (higher thiobarbituric acid reactive substances (TBARS)), in agreement with more unsaturated fatty acid profile, a higher score for rancid taste, and a higher relative abundance of volatiles from lipid β-oxidation. Overall, dry-fermented sausages from organic pork had lower levels of volatile compounds, particularly, those originating from spices (despite the same quantity added) and lower levels of amino-acid degradation. Sensory analysis showed that dry-fermented sausages from organic pork had less intensive and vivid color, tasted more bitter and sour, and had more off-tastes. The observed differences could be related to initial differences in raw material (differences in meat pH and level of polyunsaturated fatty acids) affecting the process of fermentation.


2007 ◽  
Vol 73 (17) ◽  
pp. 5453-5463 ◽  
Author(s):  
Francesco Villani ◽  
Annalisa Casaburi ◽  
Carmela Pennacchia ◽  
Luisa Filosa ◽  
Federica Russo ◽  
...  

ABSTRACT The microbial ecology of “soppressata of Vallo di Diano,” a traditional dry fermented sausage from southern Italy, was studied by using both culture-dependent and culture-independent approaches. The ripened fermented sausages were characterized by high microbial loads of both staphylococci and lactobacilli. Using PCR-denaturing gradient gel electrophoresis (PCR-DGGE) targeting the variable V3 and V1 regions of the 16S rRNA gene and direct DNA sequencing, it was possible to identify Staphylococcus xylosus, S. succinus, and S. equorum among the staphylococci and Lactobacillus sakei and L. curvatus within the lactobacilli. Moreover, Debaryomyces hansenii was the main yeast species found by targeting the yeast 26S rRNA gene by PCR-DGGE. Selected strains of S. xylosus, L. sakei, and L. curvatus were characterized for their technological properties in the ripening conditions of the fermented sausages so as to select an autochthonous starter formulation. The selection included the determination of nitrate reductase, lipolytic, and antioxidant activity and proteolysis with myofibrillar and sarcoplasmic protein fractions. Such properties were evaluated in both in vitro and in situ assays; the latter were performed by using each strain as a starter in the laboratory-scale manufacture of soppressata of Vallo di Diano and by monitoring the microbiological and chemical changes at the end of ripening. The results show differences between the in vitro and in situ selection results and indicate that in situ evaluation of the technological performance of specific strains is better suited to selecting autochthonous starter cultures for fermented-meat products than in vitro evaluation.


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.


2015 ◽  
Vol 46 ◽  
pp. 114-120 ◽  
Author(s):  
Félix Núñez ◽  
María S. Lara ◽  
Belén Peromingo ◽  
Josué Delgado ◽  
Lourdes Sánchez-Montero ◽  
...  

1998 ◽  
Vol 69 (1) ◽  
pp. 53-61
Author(s):  
Masayuki MIKAMI ◽  
Hisako KAWASIMA ◽  
Mitsuo SEKIKAWA

2014 ◽  
Vol 13 (4) ◽  
pp. 3422 ◽  
Author(s):  
Enver Baris Bingol ◽  
Gurhan Ciftcioglu ◽  
Funda Yilmaz Eker ◽  
Hasret Yardibi ◽  
Osman Yesil ◽  
...  

2008 ◽  
Vol 71 (8) ◽  
pp. 1550-1555 ◽  
Author(s):  
RIINA TOLVANEN ◽  
SANNA HELLSTRÖM ◽  
DIETER ELSSER ◽  
HEIKE MORGENSTERN ◽  
JOHANNA BJÖRKROTH ◽  
...  

The survival of five inoculated Listeria monocytogenes strains (DCS 31, DCS 184, AT3E, HT4E, and HR5E) was studied in dry fermented sausages prepared using two different starter cultures (starter A and B) with or without a protective Lactobacillus plantarum DDEN 2205 strain. L. monocytogenes was detected throughout ripening in every sausage sample in which the L. plantarum DDEN 2205 strain had not been used. The use of either starter A, with a high concentration of protective culture, or starter B, with a low concentration of protective culture, resulted in L. monocytogenes–negative sausages after 17 days of ripening. Differential survival was noted among the L. monocytogenes strains during fermentation. Strains AT3E and DCS 31 survived in sausages with protective cultures more often than did the other strains, whereas HT4E and HR5E were inhibited during ripening by all starter and protective cultures used. Protective cultures such as L. plantarum may be used as part of a hurdle strategy in dry sausage processing, but variations in susceptibility of different L. monocytogenes strains can create problems if other hurdles are not included.


Foods ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 219 ◽  
Author(s):  
Marianthi Sidira ◽  
Gregoria Mitropoulou ◽  
Alex Galanis ◽  
Maria Kanellaki ◽  
Yiannis Kourkoutas

The aim of the present study was to investigate the effect of sugar content (0, 0.30, and 0.60%) on quality attributes and shelf-life of dry-fermented sausages stored for 66 days containing free or immobilized Lactobacillus casei ATCC 393 on wheat. For comparison, dry-fermented sausages with no starter culture were also produced. Physicochemical characteristics ranged within the levels usually observed in fermented sausages, while a drastic decrease was recorded in numbers of enterobacteria, staphylococci, and pseudomonads during ripening in all cases. Noticeably, sugar addition and the probiotic culture resulted in significant increase of shelf-life, whereas levels of L. casei ATCC 393 after 66 days of ripening persisted above 6 log cfu/g. Sugar addition had a positive effect on sensory attributes; although all products were of high quality, the immobilized cells provided a distinctive characteristic aroma and a fine taste.


2016 ◽  
Vol 41 (2) ◽  
pp. e12823 ◽  
Author(s):  
Susana P. Alves ◽  
Maria J. Fernandes ◽  
Maria H. Fernandes ◽  
Rui J.B. Bessa ◽  
Marta Laranjo ◽  
...  

2020 ◽  
Vol 52 (2) ◽  
Author(s):  
Manuela Zadravec ◽  
Tina Lešić ◽  
Irena Perković ◽  
Željko Jakopović ◽  
Nada Vahčić ◽  
...  

During the curing period of dry-fermented sausages, the surface mycoflora changes according to the environmental conditions and intrinsic factors, such as nutrient content, water activity, pH value and the presence of antimicrobial substances (starter cultures). In this study, 25 samples of dry-fermented sausages from Croatian family small holdings were examined, the casings peeled off and examined for mycobiota before and after six months of refrigerated storage in plastic bags, at +4 °C in darkness, at a low humidity and evaporation rate. For mycobiota identification, traditional (macroscopic and microscopic) and molecular (Polymerase Chain Reaction, PCR) methods were combined. At the beginning of the study (after sausage curing), the prevalent isolated species were from the genera Penicillium (74%), Aspergillus 14% and Mucor (12%). After the six month period, a different mould structure was observed, with the dominant isolation of Aspergillus genus (64%), followed by the genera Penicillium (34%) and Mucor (2%). In comparison with the literature data, it can be concluded that the casing mycoflora on dry-fermented sausages stored in the refrigerator changed in the same way as if they not been refrigerated, though the process of mycoflora change was slower with refrigeration.


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