scholarly journals Potential of bacteriocins from lab to improve microbial quality of dry-cured and fermented meat products

2017 ◽  
Vol 16 (2) ◽  
pp. 119-126 ◽  
Author(s):  
Paulina Kęska ◽  
◽  
Joanna Stadnik ◽  
Dorota Zielińska ◽  
Danuta Kołożyn-Krajewska ◽  
...  
2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Paul Attien ◽  
Haziz Sina ◽  
Wardi Moussaoui ◽  
Gaëlle Zimmermann-Meisse ◽  
Thomas Dadié ◽  
...  

The aim of our study was to investigate the microbial quality of meat products and on some clinical samples in Abidjan focused onStaphylococcusgenus and the toxin production profile ofStaphylococcus aureus(S. aureus) isolated. Bacteria were collected from 240 samples of three meat products sold in Abidjan and 180 samples issued from clinical infections. The strains were identified by both microbiological and MALDI-TOF-MS methods. The susceptibility to antibiotics was determined by the disc diffusion method. The production of Panton-Valentine Leukocidin, LukE/D, and epidermolysins was screened using radial gel immunodiffusion. The production of staphylococcal enterotoxins and TSST-1 was screened by a Bio-Plex Assay. We observed that 96/240 of meat samples and 32/180 of clinical samples were contaminated byStaphylococcus. Eleven species were isolated from meats and 4 from clinical samples. Forty-twoS. aureusstrains were isolated from ours samples. Variability of resistance was observed for most of the tested antibiotics but none of the strains displays a resistance to imipenem and quinolones. We observed that 89% of clinicalS. aureuswere resistant to methicillin against 58% for those issued from meat products. AllS. aureusisolates issued from meat products produce epidermolysins whereas none of the clinical strains produced these toxins. The enterotoxins were variably produced by both clinical and meat product samples.


2015 ◽  
Vol 78 (11) ◽  
pp. 1980-1987 ◽  
Author(s):  
CHYER KIM ◽  
ROSLYN A. STEIN ◽  
STEVEN PAO

This study was conducted to evaluate the microbial quality of lamb and goat meat sold through local (Virginia) and Internet (U.S.) retail markets. A total of 134 frozen meat products consisting of locally purchased lamb ground (LLG) and lamb chops and Internet-procured lamb ground, goat ground, lamb chops (ILC), goat chops (IGC), lamb stew, and goat stew were tested. Significantly higher levels of aerobic mesophiles, psychrotrophs, and coliforms were found in the meat locally acquired than in the meat procured from the Internet. Similar average prevalence (27%) of Escherichia coli was observed regardless of market source. Ground meat had significantly high levels and prevalence of mesophiles, psychrotrophs, coliforms, and Listeria spp. One sample of LLG contained Campylobacter, and one sample of IGC contained Salmonella. Listeria spp. were present in 23 to 40% and 17 to 80% of samples from local and Internet markets, respectively. Pulsed-field gel electrophoresis (PFGE) of isolated E. coli strains revealed brand specificity and genomic diversity. No isolate from different brands and market sources had matching PFGE profiles. The average price of Internet meat ($23.4/kg) was about 1.2 times higher than the price of local meat, except for ILC, whose price was 2.7 times higher. This study revealed differences in microbial quality of lamb and goat meat based on market source; thus, meat products should be handled carefully regardless of market source because of the presence of high microbial levels and the high prevalence of pathogens.


2015 ◽  
Vol 45 (5) ◽  
pp. 753-765 ◽  
Author(s):  
Akhilesh Kumar Verma ◽  
Vikas Pathak ◽  
Pramila Umaraw ◽  
Veer Pal Singh

Purpose – The purpose of this study was to explore the possibilities of utilization of chicken meat in the preparation of chicken meat noodles and subsequent storage at ambient temperature. Design/methodology/approach – Chicken meat was incorporated at the levels, viz., 0 and 40 per cent, replacing refined wheat flour in the formulation. Proximate composition, pH, water activity (aw), free fatty acid (FFA), thio-barbituric acid reacting substances (TBARS), water absorption index (WAI), water solubility index (WSI), textural profile analysis (TPA), microbial quality and sensory evaluation were assessed at 10-day interval up to 30 days. Findings – Moisture, aw, TBARS, FFA, WAI, crispiness, total plate count (TPC) and yeast and mould values increased significantly (p < 0.05), whereas, fibre, ash, pH, WSI, hardness, work of shearing and sensory attributes showed significant (p < 0.05) decrease. However, all these parameter, viz., microbial quality, TBRS, FFA and sensory attributes, were within the acceptable limit during the entire storage study. Research limitations/implications – Quality of the products may be improved by the incorporation of some natural antioxidant and antimicrobial agent in chicken meat noodles. Originality/value – Consumption and demand of the noodles is increasing due to its easy preparation and taste; however, it is poor in nutritive quality. Incorporation of the chicken meat in the noodles improves the nutritive values and sensory attributes, which is important for the marketability of the meat products. The keeping quality of chicken meat noodles was comparable to the control noodles at ambient temperature up to 30 days. Noodles industry provides an alternate sector for the utilization of meat and enhancing its overall quality attributes.


2017 ◽  
Vol 16 (2) ◽  
pp. 119-126
Author(s):  
Paulina Kęska ◽  
◽  
Joanna Stadnik ◽  
Dorota Zielińska ◽  
Danuta Kołożyn-Krajewska ◽  
...  

2019 ◽  
Vol 22 (3) ◽  
pp. 93
Author(s):  
Okarini I. A. ◽  
H. Purnomo ◽  
Aulanni'am . ◽  
L. E. Radiati

Antioxidant activity, amino acids profile and microbial quality of raw bebontot of chicken meat of spent laying henwere investigated. The samples were prepared using meat dices (1.5 x 2.0 cm) mixed with fresh ground coriander,garlic, galangal, white pepper, salt, sugar and coconut oil then wrapped in Areca catechu palm dried sheaths andfinally fermented spontaneously by drying under the sun for 5 days. The results showed there was a decreasing inpH value, moisture content and 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity of final products, whileits total phenolic content was increasing. Glutamic acid was the most abundant amino acid in products after 5days fementation, followed by tyrosine, aspartic acid, lysine, leucine and histidine. The total plate count and lacticacid bacteria counts were decreasing to 9.39 log cfu/g and 8.98 log cfu/g; the Micrococcaceae was decreased to5.31 log cfu/g; the yeast and moulds counts were increased to 8.58 log cfu/g and 6.51 log cfu/g at the final stageof fermentation. It can be concluded that bebontot chicken meat in this study is a good source of natural phenolicantioxidant, and the present microorganisms will provide the source for the selection of strains well adapted to theenvironment and able to compete with contaminant bacteria.


1996 ◽  
Vol 61 (6) ◽  
pp. 1239-1242 ◽  
Author(s):  
Y.P. CHEN ◽  
L.S. ANDREWS ◽  
R.M. GRODNER

Author(s):  
Hana Šulcerová ◽  
Radka Burdychová

In this work, the level of microbial contamination of pork and beef meat for processing of heat-untreated fermented meat products was monitored. In company providing samples for this work, meat was kept frozen for period of 6 days (144 hours), which was not effective due to the financialy expensive frozing storages. The relationship between meat freezing period and number of selected technological as well as hygienical significant microorganisms was monitored, with the aim to optimize frozing period to keep microbial quality of meat and meat products. Microbiological analysis of meat samples was performed before freezing of meat and after 48, 72, 96, 120 and 144 hours of freezing. Furthermore, the analysis was carried out after 7 and 21 days of meat products storing period. Total number of microorganisms, total number of psychrotrophic microorganisms, yeast and fungi, co­li­forms, bacteria of the genus Enterococcus and bacteria of the family Enterobacteriaceae were detected. As from results, sufficient period for meat freezing was 72 hours. After this period total count of microorganisms as well as bacteria of the family Enterobacteriaceae, coliforms bacteria and bacteria of the genus Enterococcus reached the level, which at next freezing was not influenced. Number of psychrotrophic microorganisms were growing by next prolonging of freezing period, above 72 hours. Numbers of yeast and moulds became almost unchanged during the whole freezing period.


Author(s):  
Denis Dekugmen Yar ◽  
William Kwajo Jimah Kwenin ◽  
Winfred Kwame Zanu ◽  
Gadafi Iddrisu Balali ◽  
Enos Kwame Adepa ◽  
...  

There is an upsurge in the consumption of chicken meat leading to a high influx of imported frozen chicken parts into the Ghanaian markets with little information on their microbial qualities. This study examined the microbial quality of imported frozen chicken parts from three major import countries (USA, the Netherlands and Brazil) into the Kumasi Metropolis. A total of 45 chicken meat parts of 15 thighs, wings and backs from wholesale cold stores market in the Kumasi Metropolis were randomly sampled for laboratory examinations. A ten-fold serial dilution was performed on each homogenized chicken parts to determine microbiological quality using Plate Count Agar [1], MacConkey Agar (MCA), Mannitol Salt Agar (MSA) and Desoxycholate Citrate Agar (DCA) for the total viable count (TVC), total coliform count (TCC), Staphylococcus and Salmonella spp counts respectively incubated at 37oC for 48 hours. Sabouraud Dextrose Agar (SDA) was used for fungal counts. We identified bacterial and fungal isolates using appropriate laboratory and biochemical tests. Descriptive data analysis was carried using SPSS-IBM version 16. Mean TVCs of 5.93, 5.98 and 6.14 log10cfu/g were recorded for frozen chicken meats from the USA, the Netherlands and Brazil respectively. Means TCCs of 6.14, 5.93 and 5.98 log10cfu/g were obtained for chicken meats from Brazil, USA and the Netherlands respectively. Staphylococcus spp. (G+) (35.4%), E. coli (G-) (26.2%), Salmonella spp. (G-) (24.6%), and Klebsiella spp. (G-) (13.8%) were isolated with Aspergillus spp (33.3%), Rhizopus spp (27.3%), Penicillin spp (24.2%), and Cladosporium spp (15.2%). Chicken thighs, backs and wings recorded 46.2%, 29.2% and 24.6% bacterial contaminants in this order. Bacterial isolates of 49.2%, 28.8% and 22.0% were recorded in frozen chicken meat products from Brazil, the Netherlands USA respectively. The results suggest that imported frozen chicken meats into the Ghanaian market have moderate quality with potential pathogens such as E. coli and Salmonella spp.


2006 ◽  
Vol 2 (1) ◽  
pp. 55-59 ◽  
Author(s):  
P. Selvan . ◽  
R. Narendra Babu . ◽  
S. Sureshkumar . ◽  
V. Venkataramanujam .

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