scholarly journals THE MICROBIOLOGICAL STUDY OF MINCED MEAT IN SOME MARKETS IN ALEXANDRIA WITH REFERENCE TO ESCHERICHIA COLI O157 H: 7

2017 ◽  
Vol 5 (9) ◽  
pp. 26-35
Author(s):  
Aiada Daw Mohamed
Keyword(s):  
Microbiological Quality ◽  
Ground Beef ◽  
Total Coliform ◽  
Cross Sectional Study ◽  
Plate Count ◽  
Ground Meat ◽  
Frozen Ground ◽  
Cross Sectional ◽  
E Coli ◽  
Meat Samples

This cross sectional study was carried out during a four months period from December, 2012 to March, 2013. A total of 140 fresh and frozen ground beef samples were purchased from local butchers and supermarkets in Alexandria. Each of the ground beef sample was analyzed for its microbiological quality (Aerobic plate count, total coliform count and E. coli count) as well as for the presence of E. coli O157:H7. Out of the 140 studied ground meat samples, 75(53.6%) proved to be unsatisfactory according to the three tested parameters. None out of 140 examined ground meat samples showed E. coli O157:H7.

A National Survey of the Microbiological Quality of Retail Raw Meats in Australia

2008 ◽  
Vol 71 (6) ◽  
pp. 1232-1236 ◽  
Author(s):  
DAVID PHILLIPS ◽  
DAVID JORDAN ◽  
STEPHEN MORRIS ◽  
IAN JENSON ◽  
JOHN SUMNER
Keyword(s):  
Salmonella Typhimurium ◽  
National Survey ◽  
Microbiological Quality ◽  
Ground Beef ◽  
Plate Count ◽  
E Coli ◽  
Phage Types ◽  
The Mean ◽  
Aerobic Plate Count ◽  
Coagulase Positive Staphylococci

A national survey of the microbiology of meat (ground beef and diced lamb) at the retail level in Australia was undertaken. For ground beef samples (n = 360), the mean aerobic plate count (APC) was 5.79 log CFU/g, and Escherichia coli was detected in 17.8% of samples; the mean population for these positive samples was 1.49 log CFU/g. Enterobacteriaceae were detected in 96.9% of samples (mean for positive samples, 3.01 log CFU/g), and coagulase-positive staphylococci were detected in 28.1% of samples (mean for positive samples, 2.18 log CFU/g). For diced lamb samples (n = 360), the mean APC was 5.71 log CFU/g, and E. coli was detected in 16.7% of samples (mean for positive samples, 1.67 log CFU/g). Enterobacteriaceae were detected in 91.1% of samples (mean for positive samples, 2.85 log CFU/g), and coagulase-positive staphylococci were detected in 22.5% of samples (mean for positive samples, 2.34 log CFU/g). Salmonella was recovered from 4 (1.1%) of the 360 ground beef samples (isolates were Salmonella Typhimurium phage types), and E. coli O157 was recovered from 1 (0.3%) of 357 samples; Campylobacter and Clostridium perfringens were not recovered from any of the 91 and 94 samples tested, respectively. Salmonella was recovered from 2 (0.6%) of the 360 diced lamb samples (serovars were Salmonella Infantis and Salmonella Typhimurium), Campylobacter was recovered from 1 (1.1%) of 95 samples, and C. perfringens was recovered from 1 (1.1%) of 92 samples.

Microbiological quality of high-demand foods from three major cities in Ecuador

2020 ◽  
Author(s):  
Enrique Salazar-Llorente ◽  
Maria Morales ◽  
Ivette Sornoza ◽  
Maria Mariduena-Zavala ◽  
Ganyu Gu ◽  
...  
Keyword(s):  
Microbiological Quality ◽  
Cross Sectional Study ◽  
Fecal Coliforms ◽  
Food Type ◽  
Plate Count ◽  
Rrna Gene ◽  
High Demand ◽  
Cross Sectional ◽  
The Individual

Bacterial foodborne diseases are one of the most important public health issues worldwide but in Ecuador reports on the microbiological quality of foods are scarce. In this cross-sectional study, a total of 450 samples of high-demand Ecuadorian food, including bolon, encebollado, sauces, ceviche, fruits, fruit juices, fruit salads, cheese, raw chicken and ground beef were collected from popular street markets in the cities of Guayaquil, Quito and Cuenca. Populations of total aerobic mesophilic bacteria (TAM), total coliforms (TC), fecal coliforms (FC), Escherichia coli (EC), Salmonella enterica and Listeria monocytogenes were examined on composited samples by plate count following the local regulations (Norma Tecnica Ecuatoriana - INEN) for each kind of food. The individual and interaction effects of the city and food type on the levels of each bacterial group was assessed by two-way ANOVA. Selected colonies from each culture were identified using Biolog OmniLog ID and sequencing of the V3-V4 region on the 16S rRNA gene. Average TAM, TC, FC and EC levels were 5.10 ± 0.12, 2.50 ± 0.16, 1.09 ± 0.12 and 0.83 ± 0.12 log CFU/g or mL, respectively, with significant variations among the cities. The prevalence of Salmonella in chicken and sauces as well as L. monocytogenes in cheese and fruit salad was greater than 20 %.  Opportunistic pathogens including Klebsiella pneumoniae, Staphylococcus sciuri, and Enterococcus spp. were frequently identified in the samples from all three cities. High prevalence of spoilage microorganisms such as Bacillus amyloliquefaciens and biocontrol bacteria such as Lactococcus lactis was also observed. This is the first report on the microbiological quality of food from Ecuador.

Comparison of Conventional Plating Methods and Petrifilm for the Recovery of Microorganisms in a Ground Beef Processing Facility†

1997 ◽  
Vol 60 (9) ◽  
pp. 1084-1088 ◽  
Author(s):  
R. H. LINTON ◽  
W. G. EISEL ◽  
P. M. MURIANA
Keyword(s):  
Ground Beef ◽  
Plate Count ◽  
E Coli ◽  
Plating Technique ◽  
Food Contact ◽  
Beef Processing ◽  
Food Contact Surfaces ◽  
Contact Surfaces ◽  
Aerobic Plate Count ◽  
Meat Samples

The objective of this study was to compare recovery of microorganisms for various beef samples and beef contact surfaces using conventional pour plating techniques and Petrifilm methods. Comparisons for aerobic plate count (APC), coliform count (CC), and Escherichia coli count (ECC) were done for 104 fresh or frozen retail cuts and 56 food surface or food contact surfaces. Samples were taken at a midwestern retail ground beef processing plant during a 12-month project. APC comparisons were made for pour plating using Trypticase soy agar versus Aerobic Plate Count Petrifilm. CC and ECC were compared for pour plating using violet red bile + MUG agar versus E. coli Petrifilm. Overall, paired t tests revealed a significantly higher recovery for APC from fresh and frozen beef samples using the pour plating technique (P ≤ 0.05). No significant differences (P > 0.05) were observed for CC from fresh and frozen meat samples. Recovery of E. coli from many beef samples was better using Petrifilm. Significantly higher ECCs were observed from fresh and frozen meat samples using Petrifilm compared to the pour plating technique (P ≤ 0.05). For food surfaces and food contact surfaces, a comparison between pour plating and Petrifilm was done for aerobic plate count. No significant differences (P > 0.05) in recovery could be found between methods. A comparison between neutralizing buffer and letheen broth for recovery of surface microorganisms was done for both the APC pour plating method and APC Petrifilm. In both cases, recovery when using letheen broth was significantly (P ≤ 0.05) higher than neutralizing buffer. Because it is convenient and gave comparative results, Petrifilm offers a good alternative for environmental microbial testing and red meat product testing.

Microbiological Survey of Frozen Ground Meat and a Proposed Standard

1983 ◽  
Vol 46 (2) ◽  
pp. 87-89 ◽  
Author(s):  
A. MATES
Keyword(s):  
Staphylococcus Aureus ◽  
Ground Beef ◽  
Limiting Distribution ◽  
Plate Count ◽  
Ground Meat ◽  
Frozen Ground ◽  
Streptococcus Faecalis ◽  
Aerobic Plate Count

A microbiological survey of frozen ground meat was conducted during a period of five years, 1975–1980. Five hundred and nineteen samples of frozen ground beef and 172 samples of frozen ground fowl were examined. Bacteriological tests performed included aerobic plate count (APC), Staphylococcus aureus, Streptococcus faecalis and Salmonella. A proposed standard limiting distribution of the various bacteria found in frozen ground meat was proposed. The data indicated that frozen ground fowl was heavily contaminated (33%) with Salmonella, therefore according to our findings, this product should not be processed.

Quality Standards For Retail Meats

1979 ◽  
Vol 42 (8) ◽  
pp. 675-678 ◽  
Author(s):  
GAIL C. HOLLAND
Keyword(s):  
Shelf Life ◽  
Health Hazard ◽  
Microbiological Quality ◽  
Ground Beef ◽  
Quality Standards ◽  
Plate Count ◽  
Potential Hazard ◽  
Processed Meats ◽  
E Coli ◽  
Aerobic Plate Count

To be of public benefit a quality standard for meat at retail must do as it purports to do — i.e. to reduce the public hazard and/or prevent consumer deception. In addition, it must be technically workable for both the industry and the administrative branches of regulatory agencies. With processed meats and ground beef, it has not been demonstrated that they present a potential hazard. In addition, if a health hazard were demonstrated, it would not be reduced by the use of microbiological quality standards such as Aerobic Plate Count or number of Escherichia coli. Use of the bacterial criterion Aerobic Plate Count of 107/g, in place of organoleptic standards could reduce the retail shelf-life of processed meats by 20–66%. An Aerobic Plate Count, 107/g, could remove in excess of 33% of ground beef sold at retail level. In both instances a substantial quantity of wholesome meat would be prematurely removed from the retail market. Chemical standards such as protein, fat, moisture, cereal, are relatively static and do not substantially change over the retail shelf-life of meat. However the bacterial population in meat demonstrates a dynamic growth pattern. Hence the Aerobic Plate Count may indicate product age, but not necessarily product deterioration or potential health hazard. E. coli, although an intestinal bacterium, is capable of growing outside the host intestine, thrive on a variety of substrates and thrive for long periods. Thus the presence of E. coli cannot be correlated with the extent of initial fecal contamination, nor with the presence of pathogens. A program of increased awareness of personal hygiene, temperature control, stock rotation, elimination of areas for potential cross-contamination and a regular sanitation program throughout the meat cycle will guarantee the microbiological quality of meats at retail.

scholarly journals Kualitas Mikrobiologis Dan Higiene Pedagang Lawar Di Kawasan Pariwisata Kabupaten Gianyar

2017 ◽  
Vol 16 (2) ◽  
pp. 56
Author(s):  
Sang Gede Purnama ◽  
Herry Purnama ◽  
I Made Subrata
Keyword(s):  
Microbiological Quality ◽  
Plate Count ◽  
Most Probable Number ◽  
Traditional Food ◽  
Food Handlers ◽  
Cross Sectional ◽  
Probable Number ◽  
E Coli ◽  
Total Plate Count

Latar belakang dan tujuan: Kualitas mikrobiologi makanan masih menjadi masalah pada keamanan pangan. Di Bali banyak terdapat pedagang makanan khas tradisional, salah satunya adalah lawar. Lawar tidak hanya disukai oleh masyarakat lokal, tetapi juga oleh wisatawan mancanegara. Pemeriksaan mikrobiologi terhadap lawar perlu dilakukan agar sesuai dengan standar kualitas makanan yang dapat mencegah terjadinya kasus traveler’s diarrhea. Dalam mempersiapkan makanan khas tradisional sebagai food tourism maka diperlukan kajian mengenai kualitas pangan. Hal ini untuk memenuhi keamanan pangan sehingga mampu bersaing di pasar global.  Penelitian ini bertujuan untuk mengetahui kualitas mikrobiologis dan higiene pedagang lawar di kawasan pariwisata Kabupaten Gianyar, Bali serta proses pengolahan yang baik.Metode:  Penelitian ini merupakan studi analitik cross sectional dengan pendekatan kuantitatif dan kualitatif menggunakan alat ukur pedoman observasi, wawancara dan pemeriksaan laboratorium. Pengambilan sampel menggunakan teknik random sampling dengan jumlah sampel sebanyak 44 penjamah makanan dan 44 sampel lawar. Wawancaara mendalam dilakukan pada 6 orang pedagang lawar untuk mengetahui proses pengelolaan lawar yang baik. Pemeriksaan E.Coli pada sampel lawar dilakukan di Laboratorium Mikrobiologi Fak. Kedokteran dengan Total Plate Count (TPC) dan Most Probable Number (MPN) yaitu perkiraan jumlah kuman yang mendekati per 100 ml air.Hasil: Proporsi sampel lawar dengan E. coli positif dijumpai sebesar 72,7%. Dari hasil observasi dijumpai bahwa higiene penjamah makanan dalam kategori kurang baik sebesar 72,7%, fasilitas sanitasi kurang memadai 59%, kebersihan lingkungan kurang 54,5%. Hasil analisis bivariat menunjukkan bahwa variabel yang bermakna berhubungan dengan kontaminasi E. Coli yaitu: higiene penjamah makanan (p=0,00), fasilitas sanitasi (p=0,00) dan kebersihan lingkungan (p=0,05).Simpulan : Proporsi lawar yang terkontaminasi E. coli masih sangat tinggi dan hal ini berhubungan dengan higiene penjamah makanan, fasilitas sanitasi dan kebersihan lingkungan.  AbstractBackground and aims: Microbiological quality of food is still a problem on food safety. In Bali there are many traditional food traders, one of which is lawar. Lawar are not only preferred by local people, but also by foreign tourists. Microbiological test to lawar needs to be done to comply with the quality standards of food that can prevent cases of traveler's diarrhea. In preparing traditional food as a food tourism will require assessment of the quality of the food. This is to achieve food safety standards so as to compete in the global market. This study aims to determine the microbiological quality and hygiene lawar traders in the tourist area of Gianyar, Bali as well as hygiene and sanitation models of good food.Methods: This was a cross sectional analytical study with a quantitative and qualitative approach, using a measuring instrument observation, interview and laboratory tests. Sampling using random sampling method with a sample size 44 and 44 samples of food handlers lawar. In-depth interviews were conducted on 6 lawar traders to know how to create a good lawar. E. coli in samples lawar examination conducted at the Laboratory of Microbiology, Faculty of Medicine with Total Plate Count (TPC) and the Most Probable Number (MPN), which estimates the number of germs.Results: The proportion of samples positive lawar with E. coli was found at 72.7%. From the observation found that the hygiene of food handlers in the unfavorable category as much as 72.7%, inadequate sanitation facilities 59%, 54.5% less environmental hygiene. Results of bivariate analysis showed that the variables significantly associated with E. Coli contamination namely: hygiene of food handlers (p = 0.00), sanitary facilities (p = 0.00) and sanitation (p = 0.05).Conclusions: The proportion lawar contaminated with E. coli is still very high and this is associated with a food handler hygiene, sanitation and environmental hygiene.

scholarly journals Microbiological Quality and Safety of Retail Chicken and Beef Products in Lebanon

2020 ◽  
Author(s):  
J. Yammine ◽  
L. Karam
Keyword(s):  
Meat Products ◽  
Microbiological Quality ◽  
Ground Beef ◽  
Chicken Liver ◽  
Chicken Breast ◽  
Salmonella Spp ◽  
E Coli ◽  
Beef Meat ◽  
Beef Products ◽  
Meat Samples

Background: Controlling and reducing the food-borne illnesses remain one of the most challenging problems encountered by food authorities worldwide. This study was conducted to assess the microbiological quality of chicken breast, chicken liver, local and imported offal, and ground beef meat products sold in the Lebanese retail market. Methods: Thirty-five chicken breast and liver samples produced by ISO 22000 certified and non-certified companies were purchased from the market. Chicken samples were tested for Total Aerobic Count (TAC), Total Coliforms (TC), Staphylococcus aureus, Salmonella spp., and Listeria monocytogenes. Twenty offal and ground beef meat samples were collected as sold in bulk from the market and were analyzed for Escherichia coli O157:H7. Statistical analysis was performed using SPSS statistical software v. 23.0. Results: The results showed that 20, 100, 20, 80, and 0% of the analyzed chicken breast samples were rejected for TAC, TC, S. aureus, Salmonella spp., and L. monocytogenes, respectively. For chicken liver samples, 100% of the samples were rejected for TC and Salmonella spp., while all the samples were accepted for TAC, S. aureus, and L. monocytogenes. E. coli O157:H7 was absent in all meat samples. Conclusion: Some chicken samples from both certified and non-certified suppliers exceeded the standard upper limits showing hygienic concerns; whereas meat products were safe for consumption regarding the pathogenic E. coli O157:H7.

scholarly journals MUTU MIKROBIOLOGIS BAKSO IKAN YANG DIRENDAM ASAP CAIR, DIKEMAS VAKUM, DIPASTEURISASI DAN DISIMPAN PADA SUHU DINGIN

2015 ◽  
Vol 3 (2) ◽  
Author(s):  
Oktavianus Alexander Poluakan ◽  
Henny Adeleida Dien ◽  
Frans Gruber Ijong
Keyword(s):  
Escherichia Coli ◽  
Microbiological Quality ◽  
Total Coliform ◽  
Plate Count ◽  
High Water Content ◽  
Cold Temperatures ◽  
E Coli ◽  
Liquid Smoke ◽  
Total Plate Count ◽  
Spoilage Bacteria

Fish meatball is a processed fish product and quite popular for the public. The weakness of fish meatball is quickly decayed which is caused by the growth of spoilage bacteria and pathogens during the storage. Liquid smoke has a function as a barrier to the development of bacteria. Pasteurization, vacuum packaging and storage of cold temperatures could inhibit the growth of bacterium. The purpose of these study is to assessment the Total Plate Count, Total Coliform and Escherichia coli, and Total Salmonella for the microbiological quality of fish meatball soaked in liquid-smoked, vacuum packed, pasteurized and stored at cold temperatures. Fish meatball soaked in liquid smoke 0.8% for 30 minutes and pasteurized at temperature of ±88ºC for 30, 60 and 90 minutes, then vacuum packed and stored at cold temperatures. Based on the results of observations, Total Plate Count from fish meatball can last up for 10 days with the highest TPC value of 6.3 x 104 CFU / g according to ISO 7266: 2014. Total Salmonella until a 20th day had a negative value. Also, Total Coliform and E. coli growth does not found in the cold storage for 30 days. Value fish balls high water content and pH are good for bacterial growth. Immersion in liquid-smoked indicates that liquid-smoked is a good antibacterial preservative for use as an additive. Keyword: Fish Meatball, Liquid-Smoked, Pasteurization, Bacteria.   Bakso ikan merupakan produk olahan ikan yang cukup digemari masyarakat. Kelemahan dari bakso ikan yaitu cepat mengalami pembusukan yang diakibatkan oleh pertumbuhan bakteri pembusuk dan patogen selama masa simpan. Asap cair memiliki fungsi sebagai penghambat perkembangan bakteri. Pasteurisasi, Pengemasan secara vakum dan penyimpanan suhu dingin dilakukan untuk menghambat pertumbuhan bakteri. Penelitian ini bertujuan untuk menghitung Angka Lempeng Total, Total Salmonella dan Total Koliform dan Escherichia coli terhadap mutu mikrobiologis bakso ikan yang direndam asap cair, dikemas vakum, dipasteurisasi dan disimpan pada suhu dingin. Bakso direndam pada asap cair 0.8% selama 30 menit dan dipasteurisasi pada suhu ±88ºC selama 30, 60 dan 90 menit, lalu dikemas vakum dan disimpan pada suhu dingin. Berdasarkan nilai hasil pengamatan Angka lempeng Total, bakso ikan dapat bertahan selama 10 hari dengan nilai ALT tertinggi 6.3 x 104 CFU/g dan masih dapat diterima SNI 7266:2014. Total Salmonella sp sampai pada hari ke 20 memiliki nilai negative dan Total Koliform dan E. coli tidak terdeteksi pertumbuhan sampai pada penyimpanan dingin selama 30 hari. Nilai kadar air bakso ikan tinggi dan pH yang baik untuk pertumbuhan bakteri. Perendaman dalam asap cair menunjukkan bahwa asap cair merupakan pengawet antibakteri yang baik untuk digunakan sebagai bahan tambahan. Kata Kunci: Bakso Ikan, Asap Cair, Pasteurisasi, Bakteri.

scholarly journals The Role of Hygiene and Sanitation to the Escherichia coli Contamination in Drinking Water in Depok City, Indonesia

2021 ◽  
Vol 9 (E) ◽  
pp. 641-644
Author(s):  
Bambang Wispriyono ◽  
Lia Arsyina ◽  
Iqbal Ardiansyah ◽  
Laura D. Pratiwi ◽  
Ririn Arminsih ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Drinking Water ◽  
Water Samples ◽  
Human Life ◽  
Cross Sectional Study ◽  
Plate Count ◽  
Cross Sectional ◽  
E Coli ◽  
Household Water ◽  
Water Container

BACKGROUND: Drinking water is a vital aspect in human life. The quality of drinking water should be monitored to ensure public from any health effects caused by contaminated water. Escherichia coli (E. coli) is one of the indicators of fecal contamination should not be present in drinking water (0 cfu/100 ml). However, poor hygiene and sanitation contributes to E. coli contamination in drinking water, particularly in developing countries. AIM: We investigated the household hygiene and sanitation factors and the relationship with E. coli detection in the household drinking water. METHODS: A cross-sectional study design was conducted to collect the data from three districts in the Depok city, that is, Sawangan, Bojongsari, and Cipayung. A total of 300 houses and the corresponding drinking water samples were collected during August–September 2019. E. coli was determined as microbiological indicator using total plate count method. RESULTS: The results showed that E. coli was detected in 174 (58%) of household water samples. The water container condition (OR = 2,60; CI 95%: 1.18–5.71) and the hand washing practice with soap (OR = 1,65; CI 95%: 1.04–2.62) were significantly correlated with the presence of E. coli in the water samples. CONCLUSIONS: The condition of the water container was the most dominant factors which contributed to E. coli content in the household drinking water.

Impact of Raw Materials and Processing Techniques on The Microbiological Quality of Egyptian Domiati Cheese

2020 ◽  
Keyword(s):  
Raw Materials ◽  
Microbiological Quality ◽  
Raw Milk ◽  
Plate Count ◽  
E Coli ◽  
Fresh Cheese ◽  
Processing Techniques ◽  
The Impact ◽  
Total Yeast

Domiati cheese is the most popular brand of cheese ripened in brine in the Middle East in terms of consumed quantities. This study was performed to investigate the impact of the microbiological quality of the used raw materials, the applied traditional processing techniques and ripening period on the quality and safety of the produced cheese. Three hundred random composite samples were collected from three factories at Fayoum Governorate, Egypt. Collected samples represent twenty-five each of: raw milk, table salt, calf rennet, microbial rennet, water, environmental air, whey, fresh cheese, ripened cheese & swabs from: worker hands; cheese molds and utensils; tanks. All samples were examined microbiologically for Standard Plate Count (SPC), coliforms count, Staphylococcus aureus (S. aureus) count, total yeast & mould count, presence of E. coli, Salmonellae and Listeria monocytogenes (L. monocytogenes). The mean value of SPC, coliforms, S. aureus and total yeast & mould counts ranged from (79×102 CFU/m3 for air to 13×108 CFU/g for fresh cheese), (7×102 MPN/ cm2 for tank swabs to 80×106 MPN/ml for raw milk), (9×102 CFU/g for salt to 69×106 CFU/g for fresh cheese) and (2×102 CFU/cm2 for hand swabs to 60×104 CFU/g for fresh cheese), respectively. Whereas, E. coli, Salmonella and L. monocytogenes failed to be detected in all examined samples. There were significant differences in all determined microbiological parameters (p ≤0.05) between fresh and ripened cheese which may be attributed to different adverse conditions such as water activity, pH, salt content and temperature carried out to improve the quality of the product.

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