Public health and research perspectives on the microbial contamination of foods.

1990 ◽  
Vol 68 (3) ◽  
pp. 884 ◽  
Author(s):  
G J Jackson
Keyword(s):  
Public Health ◽  
Microbial Contamination ◽  
Research Perspectives

scholarly journals Public Health Risks Associated with Heavy Metal and Microbial Contamination of Drinking Water in Australia

2019 ◽  
Vol 16 (20) ◽  
pp. 3982
Author(s):  
Paul J Molino ◽  
Richard Bentham ◽  
Michael J Higgins ◽  
Jason Hinds ◽  
Harriet Whiley
Keyword(s):  
Public Health ◽  
Drinking Water ◽  
Health Risks ◽  
Lead Exposure ◽  
Microbial Contamination ◽  
Future Research ◽  
Public Health Burden ◽  
Public Health Risks ◽  
Piping Systems ◽  
The Impact

Recently in Australia concerns have been raised regarding the contamination of municipal drinking water supplies with lead. This is of particular concern to children due to the impact of lead exposure on cognitive development and as such these findings have received much media attention. The response from legislators has been swift, and The Victorian School Building Authority has announced that all new schools and school upgrade works will only use lead-free tapware and piping systems. However, while the immediate replacement of lead-containing brass fittings may seem a logical and obvious response, it does not consider the potential implications on microbial contamination. This is particularly concerning given the increasing public health threat posed by opportunistic premise plumbing pathogens (OPPPs). This commentary explores this public health risk of lead exposure from plumbing materials compared to the potential public health risks from OPPPs. Non-tuberculous mycobacterium was chosen as the example OPPP, and the influence on plumbing material and its public health burden in Australia is explored. This commentary highlights the need for future research into the influence of plumbing material on OPPPs prior to any changes in legislation regarding plumbing material.

scholarly journals Public Health Risk of Cow Milk Microbial Contamination Versus Hygiene Habits Impact Analyses of Cow Milkers

2020 ◽  
Vol 2 (5) ◽  
pp. 51-59
Author(s):  
Benjamin Makimilua Tiimub ◽  
Paul Amihere-Ackah ◽  
Richard Wonnsibe Tiimob ◽  
Enoch Gyan ◽  
Gideon Likida Tiimob ◽  
...  
Keyword(s):  
Public Health ◽  
Health Risk ◽  
Microbial Contamination ◽  
Cow Milk ◽  
Public Health Risk

scholarly journals Biocides Used as Additives to Biodiesels and Their Risks to the Environment and Public Health: A Review

Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2698 ◽  
Author(s):  
Glécia Luz ◽  
Breno Sousa ◽  
Adevilton Guedes ◽  
Cristine Barreto ◽  
Lourdes Brasil
Keyword(s):  
Public Health ◽  
Microbial Contamination ◽  
Diesel Oil ◽  
Biodiesel Production ◽  
Phenolic Antioxidants ◽  
Environment And Public Health ◽  
Potential Growth ◽  
Scientific Databases ◽  
Current Scenario ◽  
Spectrum Activity

One of the advantages of using biodiesel and its blends with diesel oil is the lower levels of emissions of particulate matter, sulfur dioxide, carbon monoxide, among others, making it less harmful to the environment and to humans. However, this biofuel is susceptible to microbial contamination and biodeterioration. In this sense, studies on the use of effective low toxicity biocides are being carried out, and this work aims to present the latest information (2008–2018) available in the scientific databases, on the use of biocides in biodiesel, mainly concerning their toxicity to the environment and public health. The results showed that in relation to the control of microbial contamination, the current scenario is limited, with seven publications, in which the most studied additives were isothiazolinones, oxazolidines, thiocyanates, morpholines, oxaborinanes, thiocarbamates and phenolic antioxidants. Studies regarding direct experiments with humans have not been found, showing the need for more studies in this area, since the potential growth of biodiesel production and consumption in the world is evident. Thus, there are need for more studies on antimicrobial products for use in biodiesel, with good broad-spectrum activity (bactericidal and fungicidal), and further toxicological tests to ensure no or little impact on the environment.

Microbial Contamination of Vegetables Irrigated with Sewage Effluent by the Drip Method

1978 ◽  
Vol 41 (5) ◽  
pp. 336-340 ◽  
Author(s):  
A. Y. SADOVSKI ◽  
B. FATTAL ◽  
D. GOLDBERG
Keyword(s):  
Public Health ◽  
Fresh Water ◽  
Drip Irrigation ◽  
Fecal Coliform ◽  
Bacterial Contamination ◽  
Microbial Contamination ◽  
Sewage Effluent ◽  
Viral Contamination ◽  
Vegetable Samples ◽  
Experimental Plots

The effect of the drip irrigation method on microbial contamination of vegetables irrigated with wastewater was evaluated. The density of microbial contamination on surfaces of cucumbers and eggplants irrigated with sewage effluent was determined, using a controlled washing procedure. The fecal coliform count on vegetables irrigated with wastewater was 38-fold higher than on vegetables irrigated with fresh water. However, agrotechnical manipulations of the drip method, such as sub-irrigation or covering the soil and the drip lines with plastic sheets, reduced bacterial contamination considerably. Similarly, the bacterial contamination on vegetables which were irrigated with sewage effluent during the first stage of growth (up to flowering) and subsequently with fresh water was not different from the contamination on vegetables which were irrigated with fresh water. The viral contamination on 27 vegetable samples which were collected from sewage irrigated experimental plots was below the level of detection. It is proposed that the drip method may be considered for wastewater irrigation of crops in accordance with generally accepted public health criteria.

scholarly journals Escherichia coli Survival on Strawberries and Unpacked Romaine Lettuce Washed Using Contaminated Water

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1390
Author(s):  
Manreet Bhullar ◽  
Bridget Perry ◽  
Ana Monge ◽  
Lillian Nabwiire ◽  
Angela Shaw
Keyword(s):  
Public Health ◽  
Microbial Contamination ◽  
Wash Water ◽  
Contaminated Water ◽  
Initial Population ◽  
Agricultural Water ◽  
Romaine Lettuce ◽  
E Coli ◽  
The Past ◽  
Foodborne Outbreaks

A number of foodborne outbreaks have occurred in the past decade, with higher incidences associated with romaine lettuce and strawberries. Contaminated agricultural water has been reported as the source of microbial contamination in most of these outbreaks. Maintaining the adequate and sanitary quality (0 E. coli/100 mL) of agricultural water can be challenging during post-harvest operations such as washing. The study focused on the attachment of generic E. coli (Rifampicin resistant) onto romaine lettuce and strawberries, mimicking the produce wash step. The produce was washed with contaminated water, air-dried, and stored in display units for 7 days. The produce was sampled randomly each day and analyzed for the surviving E. coli count. The results indicated that E. coli can survive in both lettuce and strawberries over extended periods. A survival population of 2.3 log CFU/cm2 (day 8) was observed on lettuce with an initial population of 2.8 log CFU/cm2 (day 0). On strawberries, the population reduced from 3.0 (day 0) to 1.7 log CFU/cm2 (day 7), with an initial E. coli concentration of approx. 6 log CFU/mL in the wash water. Strawberry leaves had a higher attachment of E. coli than the fruit (p < 0.05). In conclusion, romaine lettuce and strawberries washed with contaminated water can cause an outbreak affecting consumers and public health.

scholarly journals Microbiological quality evaluation of ready-to-eat mixed vegetable salad, food ingredients and some water samples from a restaurant in Accra: A case study

2020 ◽  
Vol 20 (06) ◽  
pp. 16669-16688
Author(s):  
Nii Korley Kortei ◽  
◽  
T Annan ◽  
L Quansah ◽  
G Aboagye ◽  
...  
Keyword(s):  
Public Health ◽  
Water Samples ◽  
Microbial Contamination ◽  
Microbiological Quality ◽  
Food Microbiology ◽  
Plate Count ◽  
Food Ingredients ◽  
Economic Implications ◽  
Microbiological Methods

One serious threat to public health in both developed and developing countries is the microbial contamination of food. This problem poses a great challenge and consequently has economic implications. Causes of microbial contamination are diverse and these may be natural, environmental, or technological. The microbiological quality of most ready-to-eat foods is of great significance to human health because they require minimal or no processing when consumed.The aim of this research was to investigate the microbiological quality of some ready-to-eat mixed vegetable salad foods, ingredients as well as the wash water samples of an urban restaurant located in Accra, Ghana. A total of thirty (30) samples categorized into mixed vegetable salads, foods and water obtained from an urban restaurant in the national capital of Ghana, Accra. They were analyzed at the microbiology laboratory and food microbiology laboratories of School of Allied Health Sciences(UHAS)and Council for Scientific and Industrial Research-Food Research Institute (CSIR-FRI), Ghana,respectively. Standard microbiological methods that are per International Organization for Standardization(ISO) Methods and Nordic Committee on Food Analysis Methods (NMKL) were used in determining the presence and levels of bacteria and fungi.Data obtained were transformed from standard to logarithmic forms and reported as mean+standard deviations. The aerobic plate count samples ranged from 0-4.73 log 10CFU/g. E-coli counts also ranged between 0-2.53 log 10CFU, while Bacillus cereus counts were very low at0-<10log 10CFU/g. Clostridium perfringens and Staphylococcus aureus counts were also very low ranging from0-1.0log10CFU/g.Enterobacteriaceae counts also ranged from 0-1.90 log10CFU/g. Molds and yeasts counts were generally low and ranged from 0-2.48 log 10CFU/g and 0-1.0 log10CFU/g,respectively. None of the samples tested contained Listeria monocytogenes and Salmonella spp. Fungal microbial loads were minimal given the quantities, and were deleterious to the health of consumers. The study revealed that the bacterial loads on mixed vegetable salads, ingredients and water samples used and served by an urban restaurant in Accra were within safe limits according to American Public Health Association (APHA) and International Commission for Microbiological Specifications for Foods (ICMSF) guidelines and,therefore,good for human consumption.

scholarly journals Microorganisms, parasites, and nonbiological contaminants in minimally processed fruit salads sold by street vendors

2020 ◽  
Vol 9 (8) ◽  
pp. e19985234
Author(s):  
Lidiane Pinto de Mendonça ◽  
Elisandra Cibely Cabral de Melo ◽  
Bárbara Camila Firmino Freire ◽  
Tallyson Nogueira Barbosa ◽  
Ana Carla Diógenes Suassuna Bezerra ◽  
...  
Keyword(s):  
Public Health ◽  
Escherichia Coli ◽  
Microbial Contamination ◽  
Processed Foods ◽  
Pathogenic Microorganisms ◽  
Salmonella Spp ◽  
Minimally Processed ◽  
Street Vendors ◽  
Biological Contaminants ◽  
Number Of Microorganisms

Several biological contaminants, such as microorganisms and parasites, can be found in food and affect the health of consumers. The demand for minimally processed foods is increasing, including fruit salads that are sold by street vendors. The objective of this research was to evaluate microorganisms, parasites, and nonbiological contaminants in minimally processed fruit salads sold by street vendors. Fifty fruit salad samples marketed by different street vendors were randomly collected. Presence of Salmonella spp. was found in 2% of the samples. High number of microorganisms of the coliform group was found; Escherichia coli was found in 10% of the samples, growth of coagulase-positive staphylococcus was found in 14% of the samples, and molds and yeasts in the samples ranged from 3.77 to 7.78 log10CFU g-1. No parasites or nonbiological contaminants were found in any sample analyzed. The salad samples presented microbial contamination and represent risks to the health of the consumers due to the possibility of transmitting pathogenic microorganisms of importance to public health.

scholarly journals CEMARAN BAKTERI MESOFILIK AEROBIK PADA CEKER AYAM DALAM SOTO DARI TIGA LOKASI RUMAH MAKAN DI BANDA ACEH (Mesophilic Aerobic Bacteria Contamination of chicken shank in soto from three restaurant locations in Banda Aceh)

2015 ◽  
Vol 9 (2) ◽  
Author(s):  
Teuku Reza Ferasyi ◽  
Razali Razali ◽  
Safarwati Safarwati ◽  
Nurliana Nurliana ◽  
Sulasmi Sulasmi ◽  
...  
Keyword(s):  
Public Health ◽  
Veterinary Medicine ◽  
Key Words ◽  
Microbial Contamination ◽  
Sampling Method ◽  
Aerobic Bacteria ◽  
Contamination Level ◽  
Plastic Bag ◽  
Banda Aceh ◽  
Maximum Limit

This study was aimed to test the level of mesophilic aerobic bacteria contamination on chicken shank in "soto" food from restaurants in three different locations, Inong Balee-Darussalam, Ulee Kareng, and Campus of Unsyiah. A purpossive sampling method was used in this study. The sample of chicken shank in soto were collected in the morning at 10.00 a.m. and in the afternoon at 14.00 p.m. Samples were collected for 3 consecutive days. For each sampling, a total of 25 grams of chicken shank was put into plastic bag and directly transfer to the Veterinary Public Health Laboratory, Faculty of Veterinary Medicine of Syiah Kuala University. The result showed that the chicken shank in the soto food from three locations of restaurant had been contaminated with mesofilic aerobic bacteria with contamination level exceeds the maximum limit of microbial contamination as allowed in SNI - 2000.Key words: soto, shank, restaurants

scholarly journals Water Scarcity & Health in Urban Africa

Daedalus ◽  
2021 ◽  
Vol 150 (4) ◽  
pp. 85-102
Author(s):  
Julie Livingston
Keyword(s):  
Public Health ◽  
Water Scarcity ◽  
Microbial Contamination ◽  
Urban Water ◽  
Rapid Urbanization ◽  
Political Relationships ◽  
Urban Africa ◽  
Significant Public Health ◽  
Water Provision ◽  
The Relationship

Abstract Water is the cornerstone of public health. Yet many people living in Africa's cities face serious challenges obtaining an adequate supply of clean water. This situation, which poses significant public health concerns, promises only to grow in magnitude in the coming years as rapid urbanization and climate change meet head-on to further constrain urban water provision. This essay explores the relationship between water supply and health in urban Africa through the lens of water scarcity and health as political relationships as much as environmental or technical phenomena. By bringing infectious diseases like cholera and chronic ailments like kidney disease into the same frame of analysis, this essay also directs attention beyond the overwhelming public health focus on microbial contamination to emergent forms of water-related illness and injury that proceed unchecked.

Sign in / Sign up

Export Citation Format

Share Document