Quality and Safety Assessment of Bangladeshi Pasteurized Milk

Ahmed, Sumon; Zim, A.F.M.I.U.; Rahman, Shanjida; Ghosh, Suparna; Chhetri, A.; Ali, Sajid

doi:10.18502/jfqhc.6.1.455

Cited by 6 publications

(9 citation statements)

References 6 publications

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“…In Algeria [29,30], rates recorded in recombined milk vary from 0% to 2.17%, respectively. Other reports have found non-compliance rates ranging from 21.4% to 100% [2,26,31,32].…”

Section: Bacterial Diversity Of Hygiene Indicatorsmentioning

confidence: 99%

“…Increased bacterial contamination of treated milk may also lead to inadequate processing procedures, poorly maintained facilities, and staff not trained in hygienic practices. The microbial quality of pasteurized milk is crucially influenced by a high initial concentration of bacteria in raw milk and post-processing contamination [2]. When the initial rate of total flora contamination of the milk tank complies with regulatory requirements, all coliforms are eliminated by pasteurization [33].…”

Section: Bacterial Diversity Of Hygiene Indicatorsmentioning

confidence: 99%

“…Aggad et al [30] observed a non-compliance rate similar to TTC (2.17%) and Silva et al [32] observed a higher rate (57.5%). According to some authors [29,34], the compliance rate could reach 100%, while for another [2], it is the non-compliance rate that can reach 100%. Coliforms do not survive pasteurization but may persist in milk under certain conditions related to pasteurization failures or post-pasteurization recontamination, leading to spoilage or severe foodborne disease [33,35].…”

Section: Bacterial Diversity Of Hygiene Indicatorsmentioning

confidence: 99%

“…The dairy industry in developing countries has significant growth potential that is constantly evolving due to the increasing demand for milk and dairy products [1]. Milk provides the human body with all essential amino acids [2]; however, it is unsterile and still contains several microorganisms, which may be pathogenic, causing foodborne illness, nonpathogenic, causing spoilage of the product [3,4]. In addition, because of their composition, milk and dairy products are an excellent growth medium for microorganisms [4,5].…”

Section: Introductionmentioning

confidence: 99%

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Assessing hygiene indicators in two dairies in Algeria in producing pasteurized milk

2021

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Background and Aim: There is a worldwide controversy about the choice of microbial flora for use as process hygiene indicators. This study aimed to evaluate the pertinence of using either coliforms or Enterobacteriaceae (EB) as process hygiene indicators in the pasteurized milk production line. Two flora families and total flora were used as bacterial indicators in some stages of pasteurized milk production line to identify the origin of post-pasteurization contamination and compare the results obtained for each flora. In addition, the bacteriological profile of isolated coliforms and EB was developed. Materials and Methods: One thousand and two hundred samples of pasteurized cow milk and surfaces (pipes and tank) at various processing stages were taken from two dairies in the northern region of Algeria. The total microbial flora (TF), total coliforms (TC), thermotolerant coliforms, and EB were enumerated, following the recommendations of ISO 4833:2006, ISO 4832:2006, and ISO 21528-2:2017 methods, respectively. The bacteriological profile was determined using the API 20E and 10S tests (bioMérieux, France). Furthermore, the cleaning efficiency and disinfection protocol of surfaces were evaluated using contact agar slides 1 (Liofilchem™, Italy). Results: Enumeration of the different indicators shows that the highest contamination rate is recorded by the total flora in the two units, 3.28 and 3.78 log CFU/mL, respectively. EB (–0.60 log CFU/mL) at post-pasteurization stage in Unit 1 and coliforms (0.44 log CFU/mL) at the pasteurized packaged milk stage in Unit 2 are the least significant germ families. The lowest compliance rates of bacterial contamination were reported for total flora (82-85%) at the three sampled sites in Unit 2. In comparison, the highest was reported in Unit 1 (99.8%) and 2 (98%) by the EB indicator. Assessing the surface cleaning and disinfection protocol compliance shows that the tank records the highest non-compliance rates for EB and TF (4% and 3%) in Unit 2. EB are represented in both units by various species. Acinetobacter baumannii in Unit 1 and Enterobacter cloacae in Unit 2 are the common species of the three indicator families. Acinetobacter and Enterobacter in Unit 1, Escherichia, Citrobacter, Enterobacter, Klebsiella, and Hafnia in Unit 2 are the most time persistent bacterial genera along the production line. Stenotrophomonas, Serratia, Salmonella, Enterobacter, and Escherichia are common genera in both units. Conclusion: The results obtained show no difference in the use of EB or TC as hygiene indicators. However, if the objective is to identify the species of bacterial populations, using EBs are the most appropriate.

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“…In Algeria [29,30], rates recorded in recombined milk vary from 0% to 2.17%, respectively. Other reports have found non-compliance rates ranging from 21.4% to 100% [2,26,31,32].…”

Section: Bacterial Diversity Of Hygiene Indicatorsmentioning

confidence: 99%

Section: Bacterial Diversity Of Hygiene Indicatorsmentioning

confidence: 99%

Section: Bacterial Diversity Of Hygiene Indicatorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessing hygiene indicators in two dairies in Algeria in producing pasteurized milk

2021

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“…886 Milk brand names used in abbreviated forms but not mentioned and reported that the different brands of Bangladeshi pasteurized milk did not maintain the standard and acceptable quality. 883…”

Section: Evaluation Of the Quality Of Raw Milkmentioning

confidence: 99%

A Six-Decade Review: Research on Cattle Production, Management and Dairy Products in Bangladesh

Samad¹

2020

JVMOHR

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Background: Historical changes in the demand of animal protein sources (milk & meat) for human consumption have been largely increased due to increased growth of human population, income and urbanization in Bangladesh. Research on cattle production and management especially cattle breeding, feeds and fodders, milk production and products have contributed to increase potential production and genetic gains of cattle. A comprehensive review on the published inland research reports on cattle production, management and dairy products are lacking in literature which is required for further research for the cattle development and production. Objectives: An attempt to review on the published inland research reports on the advances in science and technology on cattle production, management and dairy products in Bangladesh Materials and Methods: A systematic literature review of research articles on cattle production, management and dairy products published between 1962 and 2020 from Bangladesh has been reviewed. A total of 1185 research articles on cattle production, management and dairy products supported with some international related articles have been reviewed and analyzed. Results: Research data on cattle production, management and dairy products are compiled from 1185 different research reports supported with some international reports. This review covers the status of cattle breeds and varieties with tabulated summary of 21 reports on draught cattle, 83 on fodder production, 97 on nutrition, feeds and feeding, 88 on trials of different feed formulations in non-dairy cattle and 68 on dairy cattle, 5 on the effects of heat stress on health and production, 39 on fattening of cattle, 27 on genetics and breeding, 75 on semen and AI, 20 on factors associated with conception rate (CR), 8 on oocyte and embryo collection, 9 on genotypes of dairy cows, 7 on management of smallholder dairy farms, 48 on milk production status of dairy cattle, 32 on economics of rearing cattle, 99 on productive and reproductive performances of cattle, 7 on estrus and pregnancy diagnosis, 7 problems of dairy farmers, 23 on preservative and adulteration of milk, 20 on constituents and methods of sweet preparation, 11 on cheese preparation, 9 on ice-cream, 56 on yoghurt, 4 on beef cattle production, 34 on birth weight, and 15 on calf rearing including calf milk replacer and calf starter. Conclusions: Data based reports are important for priority setting and targeting with mandate for cattle development and increase production. Currently, one of the biggest gaps in the inland datasets on cattle research and this review addresses this gap by bringing together in a review and highlighting some of the major findings. Cross-breeding remains an attractive option for cattle improvement because of the quick results that can be obtained by its use and the potential benefits it has farmers. This review would serve as an archive of research reports on cattle production, management and dairy products for the concerned academicians, research scientists, organizations and government for future planning for education, research and extension on cattle production. Keywords: Systematic review, Six decades, Cattle, Management, Production, Dairy products, Bangladesh

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Raw Milk in Noakhlai, Bangladesh: Quality Assessment and Antibiotic Resistance of Identified Microorganisms

Akter

Mokbul

Susmita

et al. 2021

Curr Res Nutr Food Sci

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Milk is an ideal food for all age groups. The current study was carried out to identify the microorganisms to assess the raw milk quality and the antibiotic resistance of those identified micro-organisms. Five raw milk samples along with two high treatment (UHT) milk samples from different locations of Noakhali district of Bangladesh were analysed. Bacterial isolation was performed by Nutrient Agar (NA) and MacConkey (MCA), Eiosin Methylene Blue (EMB) and Genital menital salt agar (GMSA). The isolates were then identified by Kliger’s Iron Agar (KIA) test, Motility Indole Urease (MIU) test, Catalase and Oxidase tests. Antibiotics resistance tests were done for 13 different antibiotics. Among all these samples, Maijdee Bazar (S4) contained the highest load as 1.87×106 and the UHT samples contained no bacterial contamination. E. coli covered 47.05% whereas Listeria, Bacillus and Yersinia were in the same percentage as 5.88% among all isolates. Salmonella and Staphylococcus were 23.53% and 11.76%, respectively. Listeria and Salmonella were resistant to five different antibiotics by 46.15% and 38.46% of multiple antibiotic resistance index (MRI), correspondingly. However, E. coli and Yersinia were resistant to three antibiotics namely, Rifampcin (RIF), Cefotaxime (CTX), Amoxycillin (AMX) by about 23% as MRI percentage. Bacillus and Staphylococcus both were resistant to Cefepime (CPM) by 7.69% of MRI. Hence, it can be concluded that Rifampcin and Cefepime were most common antibiotics which were resisted by most of the isolates. Therefore, hygiene aspect of these milk sources needs to be taken into consideration with high priority. Also, the antibiotics which are resisted by different organisms will be detrimental for public health aspects.

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Quality and Safety Assessment of Bangladeshi Pasteurized Milk

Cited by 6 publications

References 6 publications

Assessing hygiene indicators in two dairies in Algeria in producing pasteurized milk

Assessing hygiene indicators in two dairies in Algeria in producing pasteurized milk

A Six-Decade Review: Research on Cattle Production, Management and Dairy Products in Bangladesh

Raw Milk in Noakhlai, Bangladesh: Quality Assessment and Antibiotic Resistance of Identified Microorganisms

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