Bacterial Quality of Informally Marketed Raw Milk in Kenitra City, Morocco

Hadrya, Fatine; Elouardi, Abdelmoula; Doha, Benali; Hami, Hinde; Soulaymani, Abdelmajid; Senouci, Samira

doi:10.3923/pjn.2012.760.767

Cited by 17 publications

(14 citation statements)

References 14 publications

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“…The highest and lowest E.coli counts were recorded 1.20×10 7 cfu/ml and 1.10×10 4 cfu/ml, respectively. These results are similar to faecal coliforms 4.2x10 7 cfu/ml in raw milk expressed by Fatine Hadrya et al (2012). The highest total viable count (1.06×10 9 cfu/ml) and lowest (1.7×10 6 cfu/ml) in blood agar was recorded in raw sample.…”

Section: Discussionsupporting

confidence: 84%

“…The highest total viable count (1.06×10 9 cfu/ml) and lowest (1.7×10 6 cfu/ml) in blood agar was recorded in raw sample. Aaku et al (2004) and Arenas et al (2004) observed that the total numbers of micro-organisms in pooled raw milk were 5.5 x 10 6 cfu/ml and 10 6 to 10 7 cfu/ml, respectively and Fatine Hadrya et al (2012) revealed that the counts of total mesophilic aerobic bacteria was 6.9x10 8 cfu/ml in raw milk were randomly collected from six dairies in different locations in Kenitra City (Morocco) from October 2010 to March 2011. In which these values were almost at the same limit of our experiment results.…”

Section: Discussionmentioning

confidence: 99%

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Prevalence and Antimicrobial Susceptibility of Escherichia Coli O157 Isolated From Raw Milk Marketed in Chittagong, Bangladesh

Alam

Akther

Sarwar

et al. 2017

Turkish JAF Sci.Tech.

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Escherichia coli is an emerging public health concern in most countries of the world. It is an important cause of food-borne human disease. The present study assessed the prevalence and determined the antibiotic resistance patterns of E. coli from raw milk marketed in Chittagong, Bangladesh. Of the raw milk marketed in Chittagong ~33(18%) of the 186 raw milk samples of it contains E. coli, indicator bacteria for any enteric pathogens. The mean viable count of total bacteria was 4.04×10 8 cfu/ml and the mean viable count of E. coli in the contaminated raw milk was 1.88×10 6 cfu/ml. E. coli from only six (18.2%) of the 33 positive samples yielded colourless colonies across the CT-SMAC, suggesting the probable presence of populations belonging to the serotype O157 and rest of the isolates 27 (81.82%) produced coloured colony on CT-SMAC considering the probable presence of populations belonging to the serotype non-O157. Growth of probable E. coli O157, as evidenced by the colourless colonies on CT-SMAC compared to coloured colonies from other bacteria. Confirmed isolates were further subjected to antimicrobial susceptibility test using the Agar disc diffusion technique. Antibiotics susceptibility profile showed that all the isolates in case of E. coli O157, penicillin (100%), tetracycline (100%), amoxicillin (83.33%) and erythromycin (83.33%) were the most resistant whereas ciprofloxacin (66.67%), gentamicin (50.0%), and streptomycin (50.0%) were the most sensitive antibiotics. In case of E.coli non-O157 susceptibility profile showed that chloramphenicol (40.74%), erythromycin (40.74%) and oxacillin (37.04%) were the most resistant whereas ciprofloxacin (70.37%), sulphamethoxazole/trimethoprim (S/T) (59.26%) and gentamycin (55.55%) were the most sensitive antibiotics. The antimicrobial resistance exhibited by E. coli O157and non-O157 strains in this study is an indication of possible antibiotic abuse.

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Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Prevalence and Antimicrobial Susceptibility of Escherichia Coli O157 Isolated From Raw Milk Marketed in Chittagong, Bangladesh

Alam

Akther

Sarwar

et al. 2017

Turkish JAF Sci.Tech.

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“…The mean value was 6.78 log cfu mL -1 which was significantly (p<0.0001) higher than maximum recommended value (5.48 log cfu mL -1 ) by the FAO. However, this value was comparable to value reported by Aaku [22] as 6.74 log cfu mL -1 , higher than that obtained by Torkar and Teger [23] as 4.51 log cfu mL -1 and lower than that determined by Hadrya et al [24], Tassew and Seifu [25] and Tankoano et al [26] as respectively 6.90, 7.58 and 8.95 log cfu mL -1 . Aerobic mesophilic bacteria count is a good indicator of general hygiene, permitting the appreciation of microbial pollution and the general quality of the product.…”

Section: Assessment Of Hygienic Quality Of Raw Milksupporting

confidence: 63%

Evaluation of Microbiological Quality of Raw Milk from Farmers and Dairy Producers in Six Districts of Djibouti

Mohamed¹,

Ae²,

Aa³

et al. 2017

J Food Microbiol Saf Hyg

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Objectives: The present study was carried out to evaluate the microbial quality of raw milk taken at different sampling points from farmers in Ali Sabieh, Arta, Dikhil, Djibouti, Obock and Tadjourah districts of Djibouti. Methods:Two hundred samples of milk extracted from goats, cows and camels were collected and analyzed for the presence and enumeration of microorganisms using standard methods. Total bacterial counts exceeded the national standard in 56% of collected samples and Tadjourah district had higher milk samples (82%) with unacceptable total bacterial count.Results: Key data demonstrated the presence of food-borne microorganisms. The mean value of aerobic mesophilic bacteria (6.78 log cfu mL -1 ), coliform counts (3.91 cfu mL -1 ) and E. coli count (2.58 cfu mL -1 ) was higher than maximum recommended value. The count of yeast and moulds (5.54 log cfu mL -1 ) was also very high. Salmonella spp. (0.10 log cfu mL -1 ) was only detected in the samples from Ali Sabieh district whereas Staphylococcus aureus and spore of Clostridium spp. were below the detection level in all samples. Count of Brucella spp. and Mycobacteria were 0.56 log cfu mL -1 and 0.86 log cfu mL -1 respectively suggesting the existence of mastitic animals. Pearson correlation matrix of microorganism's distribution in raw milk showed highest positive correlation between Yeast and moulds and Streptococci at r=0.929. Analysis in principal components exhibited the variability of microbial groups with 80.797% cumulative values of the variance and Eigen values ranging between 1.553 and 3.622. Conclusion:The data suggested that raw milk samples collected from the six districts were non suitable quality and most of bacteria identified in the milk sampled could be potential food-borne pathogens.

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“…This could be confirmed by the presence of thermoresistant bacteria even at low levels but this indicative of high original bacterial load. When staphylococcus count in raw milk is considered, Beni Mellal region displayed low loads compared to other Moroccan regions notably in the Gharb region (5 x 10 5 UCF / ml; [16]), and in the Rabat region (25 x 10 5 UCF / ml; [17]). The average of staphylococcus load is up to 10 3 UCF / ml and is in equivalent tendency to that reported to Tadla region (encompassing Beni Mellal area) (up to 5 x 10 3 UCF / ml; [6]) and at lesser degree to that reported in Oujda city [4].…”

Section: Discussionmentioning

confidence: 99%

Microbiological Characteristics of Raw Cow Milk in Beni Mellal Area (Morocco)

Ferdous¹,

Hnini²,

Merzouki³

et al. 2017

IJSEA

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Although a great effort has been made in Morocco concerning the produced quantity of raw cow milk, its quality does not meet acceptable quality standards. Theobjective of this study was to evaluate the global milk quality in Moroccan dairy herds (hygienic and pathogenic parameters) and the perspectives on dairy development. For this, we evaluated the variations in the overall quality of raw milk: bacteriological and hygienic characterizations. Thus, samples of raw cow's milk produced in 10-12 farms were selected from different areas in Beni Mellal region. The investigation has concerned different cattle farms with different breeding procedures. Thus, microbiological characterization was evaluated in the samples analyzed for their standard plat count, total coliform and fecal coliform, yeast loads (L), molds (M) and some of pathogenic bacteria (staphylococcus, salmonella, listeria and clostridium). In general, the samples analyzed show a moderate to critical contamination of raw milk during different seasons in all microbial species analyzed, notably for fecal and total coliforms and total mesophilic aerobic flora (TMAF). As the microbiological quality of milk is critical to the health, organoleptic and technological qualities of milk, we assayed pathogenic bacteria and found a positivity only for staphylococcus aureus which exceeds the accepted limit. The most contaminated farms were those located essentially in the irrigated zones. The less contaminated ones belong to modern's farms. It seems that transportation, milking and pre-storage conditions as well as climate constitute the main basic relevant factors for heavy bacterial contamination Taken together these variations reflect essentially differences in practical breeding. When the period effect is investigated, differences between hot periods and cold-warm periods are present for the parameters mentioned above. These results indicate the non-respect of good hygiene practices as well as breeding practices.

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Bacterial Quality of Informally Marketed Raw Milk in Kenitra City, Morocco

Cited by 17 publications

References 14 publications

Prevalence and Antimicrobial Susceptibility of Escherichia Coli O157 Isolated From Raw Milk Marketed in Chittagong, Bangladesh

Prevalence and Antimicrobial Susceptibility of Escherichia Coli O157 Isolated From Raw Milk Marketed in Chittagong, Bangladesh

Evaluation of Microbiological Quality of Raw Milk from Farmers and Dairy Producers in Six Districts of Djibouti

Microbiological Characteristics of Raw Cow Milk in Beni Mellal Area (Morocco)

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