Assessment of Microbiological Quality of Raw Milk Produced at Tizi Ouzou Area (Algeria)

Titouche, Yacine; Hakem, Ahcène; Salmi, Djouza; Yabrir, Benalia; Chenouf, Nadia Safia; Chergui, Achour; Chenouf, Amel; Houali, Karim

doi:10.3923/ajava.2016.854.860

Cited by 10 publications

(4 citation statements)

References 8 publications

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“…In the present study, the MCC was the most contaminated milk type presenting rate contamination of 34.84%. This rate was higher than that recorded in previous studies in Western of Algeria [12] and the central region of our country [13,14] with rates of 26.25%, 18%, and 29.81%, respectively. It is higher than that of recorded in Iran (21%) [15] and is also significantly higher than rates noted in India (6.00%) [16] and in Brazil (7.03%) [17].…”

Section: Discussioncontrasting

confidence: 81%

Staphylococcus aureus isolated from selected dairies of Algeria: Prevalence and susceptibility to antibiotics

et al. 2019

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Aim: The objectives of this study were to assess the prevalence of Staphylococcus aureus in raw milk in Algerian dairies, to study the effect of seasons on the contamination of milk and the susceptibility of isolated strains to antibiotics, and to estimate the risk on the health consumer. Materials and Methods: The ISO method 6888-1 (1) was used for Staphylococcus screening. Antimicrobial susceptibility to the 11most used antibiotics in veterinary medicine was assessed using the disk diffusion assay. Results: The overall prevalence was 31.56% (95/301); 34.84% (85/244) from raw milk collectors cisterns (MCC), 22.73% (5/22) from mixing tank milk before pasteurization, and 14.29% (5/35) from pasteurized tank milk (p<0.05). A significant difference (p<0.001) of contamination on MCC was observed between dairies without season influence (p≥0.05). It was observed that 49.47% of S. aureus isolates were resistant to penicillin, 5.26% to tetracycline, 4.21% to erythromycin, 3.15% to neomycin, 2.10% to cefoxitin, 2.10% to clindamycin, and 1.05% to ofloxacin. No resistance was observed for vancomycin, gentamicin, chloramphenicol, and trimethoprim-sulfamethoxazole. Conclusion: A high prevalence of S. aureus from MCC was observed without significant effect of season. The pasteurization does not ensure the elimination of bacteria in all samples. Half of the isolates were resistant to penicillin. These findings emphasize the importance of S. aureus control in Algerian milk industry at different levels to improve public health.

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Section: Discussioncontrasting

confidence: 81%

Staphylococcus aureus isolated from selected dairies of Algeria: Prevalence and susceptibility to antibiotics

et al. 2019

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“…Concerning Maghreb countries, our findings show also differences with reports in Tunisia and Algeria areas, principally in case of Clostridium and Staphylococcus aureus prevalence that was in the range of 2.87% and 24.71% respectively in Tizi Ouzou region [28]. Moreover, in Oran region (west Algeria), a load of 72.3 x 10 5 , 8.4 x 10 5 , 9.8 x 10 4 and 19.4 x 10 5 UFC/ml was recorded in Sidi Bachir area for Total Mesophelic Aerobic Flora, Fecal coliforms, Clostridium perfringens and Staphylococcus aureus, respectively; whereas a level load of 27.1 x 10 2 , 3.6 x 10 4 , 2.7 x 10 4 and 0 UFC/ml was recorded in Gdyel area for the same germs.…”

Section: Discussioncontrasting

confidence: 89%

Evalution of the Microbiological Quality of Moroccan Cow Raw Milk in Dairy Herds Located in the Beni Mellal Region

Hnini¹,

Ouhida²,

Chigr³

et al. 2018

World Journal of Research and Review

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The main objectives of the present study were to evaluate the microbiological quality of raw cow milk produced in Beni Mellal region, one of the major milk production areas in Morocco located in the North-Centre of Morocco to evaluate the characteristics of the raw milk produced and also to evaluate hygienic conditions effects and breeding factors on milk microbiological aspects. For this, hygienic quality of milk was determined by assessing the analysis of Total Aerobic Flora or Total Bacterial Count, Total Coliforms Count, Fecal Coliforms Count, Pseudomonas sp while germs such as Anaerobic Sulphite-reducing Bacteria, Staphyloccoccus aureus, Listeria monocytogenes and Salmonella sp, were carried out according to international standards. The analysis of the microbiological results found for all the areas investigated in this study revealed that the great majority of milk caw samples studied were contaminated but at diverse levels exceeding in many times the normal threshold. Absence of pathogenic flora mainly Salmonella sp, Clostridium and Listeria was revealed by the present investigations in agreement with numerous studies in Morocco. In order to reduce the strong microbial contamination of the caw milk samples studied, the industries and authorities must made a compensate system for farmers presenting a good hygienic milk criteria on the one hand and a penalties system for those providing a bad hygienic or chemical and physical milk criteria on the one other hand.

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“…In case of S.aureus, their presence in milk is of greater concern as they also produce heat-stable toxin which causes food poisoning [1]. The finding in this study related to S. aureus -almost half of the milk sample (42.86%) had the presence of S. aureus -is comparable to the results of several studies conducted in Nepal [20,21] as well as in the rest of the world [22,23,24]. Statistically, a significant positive correlation (p<0.05) was observed in the distribution pattern of TBC across the culture; it signifies that the microbial load affects the presence of E. coli or S. aureus and vice versa.…”

Section: Discussionsupporting

confidence: 82%

Antibiogram of Escherichia coli and Staphylococcus aureus isolated from milk sold in Kathmandu district

et al. 2020

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The emergence of antibiotic resistance in microorganisms and the presence of such isolates in milk pose a great risk to public health. Therefore, this study aims to determine the antibiotic susceptibility pattern of Escherichia coli and Staphylococcus aureus isolated from milk and assess the microbial quality of milk. For this, a total of 70 milk samples were collected and the total bacterial count (TBC) was determined. E. coli and S. aureus were isolated using their respective selective media while antibiotic susceptibility testing was carried out by Kirby Bauer Disc Diffusion method. The TBC showed that the raw milk samples contained two-fold higher microbial load while the pasteurized milk samples contained four-fold higher microbial loads than the standard guidelines. A total of 62 isolates were identified from culture-positive milk samples of which 32 were E. coli and 30 were S. aureus. A significant correlation was observed between microbial load and the organism isolated (r = 0.339, p<0.01). All S. aureus isolates were susceptible to Chloramphenicol while 40% were resistant to Cefoxitin, indicating the presence of Methicillin resistant S. aureus (MRSA). Also, 12 multidrug resistant (MDR) S. aureus were identified. While for E. coli, all were susceptible to Chloramphenicol but resistant to Ampicillin. Also, 9 MDR E. coli were detected. Higher resistance was observed among isolates from the raw milk samples than the pasteurized milk. It can be concluded that the milk produced by small-scale farms and dairy industries of Kathmandu district are of poor quality. Hence, routine microbial quality assessment and antimicrobial resistance monitoring should be followed to safeguard public health.

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Assessment of Microbiological Quality of Raw Milk Produced at Tizi Ouzou Area (Algeria)

Cited by 10 publications

References 8 publications

Staphylococcus aureus isolated from selected dairies of Algeria: Prevalence and susceptibility to antibiotics

Staphylococcus aureus isolated from selected dairies of Algeria: Prevalence and susceptibility to antibiotics

Evalution of the Microbiological Quality of Moroccan Cow Raw Milk in Dairy Herds Located in the Beni Mellal Region

Antibiogram of Escherichia coli and Staphylococcus aureus isolated from milk sold in Kathmandu district

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