scholarly journals Analysis of Microbiological Contamination Levels of Cabbage and Fresh-cut Produce on Difference Area toward Climate in Korea

2012 ◽  
Vol 27 (3) ◽  
pp. 209-214 ◽  
Author(s):  
Na-Jung Choi ◽  
Gyung-Jin Bahk ◽  
Sang-Do Ha ◽  
Myung-Sub Chung ◽  
Soon-Ho Lee ◽  
...  
Keyword(s):  
Microbiological Contamination ◽  
Fresh Cut ◽  
Contamination Levels

scholarly journals Assessment of microbiological contamination levels in processed meat products from markets in southern Hue city

2021 ◽  
Vol 4 (1) ◽  
pp. 13-14
Author(s):  
Than Ton That Nhuan ◽  
Tuyet Mai Ngo Thi ◽  
Ngoc Lan Pham Thi ◽  
◽  
◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Food Safety ◽  
Clostridium Perfringens ◽  
Meat Products ◽  
Processed Meat ◽  
Microbiological Contamination ◽  
E Coli ◽  
Current State ◽  
Contamination Levels

Processed meat products are commonplace foods that are becoming increasingly popular in consumers' daily diets. Therefore, it is highly essential to assess the extent of microbiological contamination in the samples of processed meat products from markets in a bid to provide updated data of microbiological contamination to relevant agencies and local consumers as part of the current state of food safety and hygiene in the locality. A survey on microbiological contamination of processed meat products was conducted on samples collected from some markets in Southern Hue city. The 90 samples of three groups of fermented meat, packaged and non-packaged meat were analyzed. The results showed that, 100% of the samples were contaminated with aerobic microorganisms, Coliforms and Escherichia coli, in which 100% of the samples of Coliforms and E. coli did not meet the quality norms set by the Ministry of Health. The total aerobic microorganisms, Coliforms and E. coli ranged from 2.7 × 103 to 2.8 × 109 CFU/g, 1.1 × 104 to 1.5 × 108 MPN/g and 1.1 × 102 to 9.2 × 105 MPN/g, respectively. No presence of Clostridium perfringens or Staphylococcus aureus was detected in the examined samples.

scholarly journals Exposure to Bacterial and Fungal Aerosols: Microorganism Indices in A Waste-Sorting Plant in Poland

2019 ◽  
Vol 16 (18) ◽  
pp. 3308 ◽  
Author(s):  
Ewa Brągoszewska
Keyword(s):  
Air Quality ◽  
Ventilation System ◽  
Average Concentration ◽  
Working Environment ◽  
Microbiological Contamination ◽  
Bacterial Aerosol ◽  
Internal Sources ◽  
Low Efficiency ◽  
Contamination Levels ◽  
Airborne Microorganism

An increased understanding of airborne microorganism populations should enable a better interpretation of bioaerosol exposure found in a working environment. An assessment of the contamination levels of mesophilic bacterial aerosol (MBA) and fungal aerosol (FA) was carried out using two evaluation indices for microbiological pollution—the total index of microbiological contamination per cubic meter (TIMC/m3) and the indoor–outdoor index (IOI). An advantage of selected indices is the inclusion of several co-existing factors that have an impact on the formation of bioaerosol. When properly used, they also highlight the low efficiency of the ventilation system caused by an insufficient air exchange. In this study, the microbial air quality (MAQ) of the working environment was assessed during the spring season at a sorting plant located in Southern Poland. Sampling was undertaken in the plant using an Andersen six-stage impactor which allows the obtainment of information about the size distribution of the air microflora. The value of average concentrations of MBA and the average concentration of FA collected in the preliminary cabin of the sorting plant (PCSP) and the cleaning cabin of the sorting plant (CCSP) were analyzed. The obtained values of MBA were 1.6 times higher indoors, compared to outdoors, while FA was 1.7 times higher outdoors than indoors. The maximum TIMC/m3 value was obtained in PCSP (2626). The calculated IOI in this study suggests that MBA concentrations are influenced by internal sources, as opposed to FA. The purpose of this work was to present the usefulness of using indices in assessing air quality.

scholarly journals Microbiological Contamination Levels in the Processing of Korea Rice Cakes

2012 ◽  
Vol 27 (2) ◽  
pp. 161-168 ◽  
Author(s):  
Se-Hee Jeong ◽  
Song-Yi Choi ◽  
Joon-Il Cho ◽  
Soon-Ho Lee ◽  
In-Gyun Hwang ◽  
...  
Keyword(s):  
Microbiological Contamination ◽  
Contamination Levels ◽  
Rice Cakes

Domestic Kitchen Microbiological Contamination and Self-Reported Food Hygiene Practices of Older Adult Consumers

2019 ◽  
Vol 82 (8) ◽  
pp. 1326-1335 ◽  
Author(s):  
ELLEN W. EVANS ◽  
ELIZABETH C. REDMOND
Keyword(s):  
Older Adults ◽  
Aerobic Bacteria ◽  
Food Hygiene ◽  
Microbiological Contamination ◽  
Negative Attitudes ◽  
Hygiene Practices ◽  
Inadequate Knowledge ◽  
Cleaning Equipment ◽  
Increased Risk ◽  
Contamination Levels

ABSTRACT Because of increased susceptibility, older adults have an increased risk of foodborne infection, and data suggest elevated incidence; therefore, food hygiene is essential to reduce the risk. Research suggests older adults' inadequate knowledge and negative attitudes toward food hygiene may increase implementation of unsafe food practices. Data on microbiological contamination of domestic kitchens of older adults are lacking. Therefore, this study aimed to determine microbiological contamination of domestic kitchens of older adults. Food contact surfaces and equipment (n = 1,292) in domestic kitchens (n = 100) of older adults (≥60 years) were analyzed to isolate aerobic bacteria, Enterobacteriaceae, Staphylococcus aureus, and Listeria spp.; self-reported hygiene practices were also recorded. Highest contamination levels were determined on in-use cleaning equipment (dish brushes, dishcloths, sponges) with aerobic bacteria <9.3 log CFU per item, Enterobacteriaceae <8.8 log CFU per item, and S. aureus <7.0 log CFU per item. Reported usage length of dish brushes was significantly correlated (P < 0.05) with Enterobacteriaceae contamination. Significant correlations (P < 0.05) were determined between contamination and reported cleaning frequency of refrigerators. Contamination of hand towels in single-occupant households was significantly greater (P < 0.05) than in multioccupant households. The study facilitates novel comparison between reported hygiene practices with microbial contamination, suggesting older adults fail to implement adequate and regular hygiene practices that may increase the possibility of cross-contamination in the domestic kitchen and the associated risk of foodborne illness. Data from this study have determined a need for older adults to improve food hygiene practices in the domestic kitchen.

Dai Nippon Printing Co., Ltd Medi·Ca CC for Enumeration of Coliform Bacteria

2015 ◽  
Vol 98 (1) ◽  
pp. 62-70
Author(s):  
Fumihiko Saito ◽  
Mai Shimizu ◽  
Takeo Suzuki ◽  
Chie Hamada ◽  
Tatsuhiko Iwase ◽  
...  
Keyword(s):  
Reference Method ◽  
Coliform Bacteria ◽  
Contamination Level ◽  
Salmon Fillet ◽  
Fresh Cut ◽  
Raw Foods ◽  
Contamination Levels ◽  
Raw Poultry ◽  
Raw Shrimp ◽  
Medium Method

Abstract A ready-made dry medium method for coliform count, the Medi·Ca CC method, was compared to the Violet Red Bile Agar method (BacteriologicalAnalytical Manual, Chapter 4, Enumeration of Escherichia coli and the ColiformBacteria, Section G) for nine raw foods from four food categories: raw ground pork, raw lamb, raw groundchicken, raw tuna fillet, raw salmon fillet, raw shrimp, fresh peeled banana, fresh cut pineapple, and fresh cut apple. The 95% confidence interval for the mean difference between the two methods at each contamination level for seven matrixes from all four categories fell within the range of –0.50 to 0.50, and no statistical difference was observed at allthree contamination levels for four matrixes from three categories. These results demonstrated that the Medi·Ca CC method is a reasonable alternativeto the reference method for raw meat, raw poultry, raw fish, and fresh fruits.

scholarly journals Investigation of enteral nutrition products for Mesophilic Aerobic Bacteria and Cronobacter sakazakii contamination

2021 ◽  
Vol 7 (1) ◽  
pp. 39-44
Author(s):  
Burcu İrem Omurtag Korkmaz
Keyword(s):  
Enteral Nutrition ◽  
Health Risk ◽  
Aerobic Bacteria ◽  
Microbiological Analysis ◽  
Cronobacter Sakazakii ◽  
Microbiological Contamination ◽  
Plate Method ◽  
Ph Values ◽  
Hospital Pharmacies ◽  
Contamination Levels

In this study, it is aimed to analyze for the presence of Mesophilic Aerobic Bacteria (MAB), C.sakazakii, and the pH values of the enteral nutrition products, which are categorized under the special medicinal dietary products in the Turkish Food Codex. 20 enteral nutrition products were obtained from various hospital pharmacies in the province of Istanbul, and the spread plate method was carried out on suitable media. According to the results of microbiological analysis, no MAB and C.sakazakii were found in any of the samples (100%; <1 log cfu/mL). The average pH of the products was found to be 6.68 ±0.09. As a result of the research, it has been seen that all the microbiological contamination levels (100%) of enteral nutrition products are within the values suitable for use and do not pose a health risk.

scholarly journals Comparison between Two Types of Dental Unit Waterlines: How Evaluation of Microbiological Contamination Can Support Risk Containment

2019 ◽  
Vol 16 (3) ◽  
pp. 328 ◽  
Author(s):  
Jessica Lizzadro ◽  
Marta Mazzotta ◽  
Luna Girolamini ◽  
Ada Dormi ◽  
Tiziana Pellati ◽  
...  
Keyword(s):  
Bacterial Species ◽  
Type A ◽  
Healthcare Personnel ◽  
Water Tank ◽  
Type B ◽  
Microbiological Contamination ◽  
Water Safety ◽  
Unit Management ◽  
Microbiological Parameters ◽  
Contamination Levels

Infection risk management in a dental unit waterline (DUWL) involves healthcare personnel and patients and is related to routine exposure to water and aerosols that may contain bacterial species. To improve water safety plans, maintenance, and sanitation procedures, analyses of heterotrophic plate counts (HPCs) at 36 °C, and two other microorganisms frequently associated with biofilms, Pseudomonas aeruginosa and Legionella spp., were performed in order to evaluate differences in microbiological contamination between two types of DUWLs: Type A, provided by a water tank, and Type B, directly connected to municipal water. The data showed that the water supply and water safety plan differentially influenced microbiological contamination: Type A DUWLs were more contaminated than Type B DUWLs for all microbiological parameters tested, with significant changes in the percentage of positive samples and contamination levels that were beyond the limits of standard guidelines. The results obtained show how the storage tank, the absence of anti-retraction valves, and the disinfection procedures performed are the main critical points of Type A DUWLs, which confirms that dental unit management (maintenance/sanitization) is often missed or not correctly applied by stakeholders, with an underestimation of the real risk of infection for patients and operators.

DIP quality influenced by process water quality

TAPPI Journal ◽  
2014 ◽  
Vol 13 (9) ◽  
pp. 51-60
Author(s):  
DENNIS VOSS ◽  
HANS-JOACHIM PUTZ ◽  
SAMUEL SCHABEL
Keyword(s):  
Water Quality ◽  
Surface Tension ◽  
Ph Value ◽  
Water Hardness ◽  
Process Water ◽  
Test Results ◽  
Negative Effects ◽  
Water Parameters ◽  
Effects Of Ph ◽  
Contamination Levels

The need for deinking mills to reduce their fresh water consumption has resulted in higher loads of various contaminants in the process water. Lower recovered paper quality also leads to higher contamination levels in the mills. This higher load has an influence on achievable target brightness. The objective of the work was to determine and explain the main reasons for relatively poor deinked pulp quality or poor deinking potential based on the influence of recovered paper composition and process water quality. The process water parameters significantly affect the deinking potential of recovered paper. The test results showed the negative effects of increased water hardness. For standard recovered paper mixtures, flotation selectivity is higher with increasing flotation pH-value. Good results were realized for standard recovered paper with low hardness, low surface tension, and high pH-value. The results for recovered paper containing flexo newsprint could be slightly improved with low hardness, low surface tension, and low pH-value. The results of the test program using design of experiments showed interacting effects of pH-value and surface tension on luminosity and flotation selectivity.

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