scholarly journals Pathogens Transmitted through Contaminated Rice

2020 ◽  
Author(s):  
Leka Lutpiatina
Keyword(s):  
Staphylococcus Aureus ◽  
Bacillus Cereus ◽  
Pathogenic Bacteria ◽  
Raw Materials ◽  
Food Poisoning ◽  
Personal Hygiene ◽  
Food Handlers ◽  
Modes Of Transmission ◽  
Review Articles ◽  
And Staphylococcus Aureus

Rice can be a source of food poisoning because it can be contaminated with dangerous pathogens. Pathogens that often transmitted through rice are Bacillus cereus and Staphylococcus aureus. This chapter aims to explain the dangers of pathogens transmitted through contaminated rice, modes of transmission, contamination cases, and precautions. The method used in writing is to review articles. It is known that pathogens transmitted through contaminated rice can cause food poisoning, which occurs due to consuming rice containing pathogenic bacteria. Several cases of contamination of Bacillus cereus and Staphylococcus aureus in rice occurred in Indonesia, Pakistan, India, Malaysia, Belgium, America, Australia, Korea, Iran, China, and Nigeria. In general, prevention is by proper handling of raw materials, controlling the temperature of cooking and storing rice, and personal hygiene of food handlers.

scholarly journals Preliminary phytochemical screening and susceptibility of bacteria pathogens to whole extract of evolvulus alsinoides (L.)

1970 ◽  
Vol 18 ◽  
pp. 16-20
Author(s):  
BA Omogbai ◽  
FA Eze
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Bacillus Cereus ◽  
Pathogenic Bacteria ◽  
Volatile Oil ◽  
Salmonella Typhi ◽  
Phytochemical Screening ◽  
Evolvulus Alsinoides ◽  
And Staphylococcus Aureus

Context: Plant based antimicrobial represent a vast untapped source for medicines and further exploration of plant antimicrobial neeto occur. Evolvulus alsinoides (L) (Convolvulaceae) is a perennial herb is used in traditional medicine in East Asia, India, Africa and Philippines to cure fever, cough, cold, venereal diseases, azoospermia, adenitis and dementia.   Objective: The objective of this research was to evaluate the antimicrobial activity of the extracts of E. alsinoides on some clinical microbial isolates.   Materials and Methods: The ed thanolic and aqueous extracts of the whole plant (leaves and twigs) were analysed for alkanoids, tannins, glycosides, steroids, flavonoids, saponins, volatile oil and resins. The determination of antibacterial activity was done using the agar well diffusion technique. Pure cultures of pathogenic bacteria such as Bacillus cereus, Staphylococcus aureus, Micrococcus leutus, Klebsiella Pneumoniae, Pseudomonas aeruginosa, Escherichia coli and Salmonella typhi were used for antibacterial activity assay, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC).   Results: The ethanolic extract of the plant had MIC values ranging from 16 mg/ml to 512.5 mg/ml. The least MIC was 16mg-ml against Salmonella typhi while Bacillus cereus and Staphylococcus aureus showed the highest MIC of 512.5 mg-ml. In the aqueous extract the MIC ranged between 512.5 to >1025 mg/ml. Salmonella typhi, Micrococcus luteus and Staphylococcus aureus were not inhibited by the water extract. Phytochemical result showed ethanol to be a better solvent for the extraction of the bioactive agents in this plant which include: glycosides, alkaloids, saponins, tannins, flavonoids and volatile oil.   Conclusion: In this study the gram-negative organisms had the lowest MICs and MBCs. This suggests their higher susceptibility to the extract of this plant. On the basis of the result obtained in this investigation it can be concluded that ethanol extract of Evolvulus alsinoides had significant in vitro broad spectrum antimicrobial activity.   Keywords: Evolvulus alsinoides; Phytochemical screening; Antibacterial activity. DOI: http://dx.doi.org/10.3329/jbs.v18i0.8769 JBS 2010; 18(0): 16-20

scholarly journals Antimicrobial Activity of Arugula (Eruca Sativa) Leaves on Some Pathogenic Bacteria

2019 ◽  
Vol 11 (3) ◽  
pp. 10 ◽  
Author(s):  
Samar Qaddoumi ◽  
Nasser El-Banna
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Bacillus Cereus ◽  
Pathogenic Bacteria ◽  
Erwinia Amylovora ◽  
Ethyl Acetate Extract ◽  
Water Extract ◽  
Eruca Sativa ◽  
And Staphylococcus Aureus

Arugula (Eruca sativa) is a green leafy vegetable; whose flowers, seed pods and seeds are edible. It’s packed with vital nutrients that can help you step up your health without spending too much money. This study aims to fight pathogenic bacteria whether they affect plants or humans by stopping their growth and work as antibiotics. In the present study, water extract of Arugula leaves was effective against Escherichia coli HAS 11 (19mm) and Staphylococcus aureus HAS 1 (12mm), but no activity was observed against Erwinia amylovora HAS 12 and Bacillus cereus HAS 2. In the case of ethyl acetate extract, no antimicrobial activity against tested microorganisms, Staphylococcus aureus HAS 1, Bacillus cereus HAS 2, Escherichia coli HAS 11 and Erwinia amylovora HAS 12 was seen.

Microbial hazards analysis in commercial processing of prepared and frozen hake fish fingers Análisis de los riesgos microbiológicos durante el proceso de elaboración de varitas de merluza

2000 ◽  
Vol 6 (4) ◽  
pp. 307-314 ◽  
Author(s):  
M.G. Córdoba ◽  
R. Jordano ◽  
J.J. Córdoba
Keyword(s):  
Staphylococcus Aureus ◽  
Clostridium Perfringens ◽  
Manufacturing Process ◽  
Microbial Contamination ◽  
Raw Materials ◽  
Food Handlers ◽  
Effective Reduction ◽  
Commercial Processing ◽  
Microbiological Analyses ◽  
And Staphylococcus Aureus

Microbiological hazards were evaluated during processing of prepared and frozen hake fish fingers. Microbiological analyses of the pre-elaborated product, surfaces of equipment, and food handlers in the different steps of the process were performed. Both raw materials, hake and flour, were the main sources of microbial contamination. During the manufacturing process Clostridium perfringens and Staphylococcus aureus were detected. The frying step followed in the commercial processing, with a duration of 1-2 min at an oil temperature of 180 °C, appeared to be ineffective for removing the microbiological hazards. Increases in oil temperature and time of frying to 200°C and 3 min, respec tively, provoked an effective reduction of previous microbial hazards. This should be considered in the implementation of HACCP programs in the commercial processing of fish fingers.

scholarly journals Schiff bases derivatives: synthesis, identification, and antibacterial activity against pathogenic bacteria isolated from patients infected with wound infection

2020 ◽  
Vol 11 (3) ◽  
pp. 2993-2998
Author(s):  
Hawraa Mohammed Sadiq ◽  
Hutham Mahmood Yousif Al-Labban ◽  
Ahmed Abduljabbar Jaloob Aljanaby
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antibacterial Activity ◽  
Wound Infection ◽  
Schiff Bases ◽  
Pathogenic Bacteria ◽  
Raw Materials ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
And Staphylococcus Aureus

Schiff bases derivatives are one of the most important compounds that have been used in many biological applications such as antimicrobial activity. Pseudomonas aeruginosa and Staphylococcus aureus are two of the most important pathogenic bacteria that cause wound infection in Iraq and many developing countries. This research involves a synthesis of some Schiff bases compounds [A1 – A3] that were prepared from the condensation of [4- chlorobenzaldehyde, 4-bromobenzaldehyde, and 4-hydroxybenzaldehyde] in absolute ethanol. All of these compounds are characterized by [FTIR] spectroscopy. The antibacterial activity test was done according to agar well diffusion method for all derivative compounds with a concentration of 100 mg/ml and 200 mg/ml for each compound. The derivative compound A3 with a concentration of 200 mg/ml had an excellent antibacterial effect against Pseudomonas aeruginosa and Staphylococcus aureus with a diameter of inhibition zone of 18.417 ± 0.54645 and 16.000 ± 0.57735, respectively. Schiff bases derivatives synthesis compounds in this study (A1 and A2) can be considered as suitable antibacterial materials and can be used as raw materials to the synthesis of new ointment.

scholarly journals Antimicrobial Efficacy and Spectrum of Phosphorous-Fluorine Co-Doped TiO2 Nanoparticles on the Foodborne Pathogenic Bacteria Campylobacter jejuni, Salmonella Typhimurium, Enterohaemorrhagic E. coli, Yersinia enterocolitica, Shewanella putrefaciens, Listeria monocytogenes and Staphylococcus aureus

Foods ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1786
Author(s):  
György Schneider ◽  
Bettina Schweitzer ◽  
Anita Steinbach ◽  
Botond Zsombor Pertics ◽  
Alysia Cox ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Campylobacter Jejuni ◽  
Food Industry ◽  
Pathogenic Bacteria ◽  
Antibacterial Activities ◽  
Tio2 Nps ◽  
E Coli ◽  
Foodborne Pathogenic Bacteria ◽  
And Staphylococcus Aureus ◽  
Co Doped

Contamination of meats and meat products with foodborne pathogenic bacteria raises serious safety issues in the food industry. The antibacterial activities of phosphorous-fluorine co-doped TiO2 nanoparticles (PF-TiO2) were investigated against seven foodborne pathogenic bacteria: Campylobacter jejuni, Salmonella Typhimurium, Enterohaemorrhagic E. coli, Yersinia enterocolitica, Shewanella putrefaciens, Listeria monocytogenes and Staphylococcus aureus. PF-TiO2 NPs were synthesized hydrothermally at 250 °C for 1, 3, 6 or 12 h, and then tested at three different concentrations (500 μg/mL, 100 μg/mL, 20 μg/mL) for the inactivation of foodborne bacteria under UVA irradiation, daylight exposure or dark conditions. The antibacterial efficacies were compared after 30 min of exposure to light. Distinct differences in the antibacterial activities of the PF-TiO2 NPs, and the susceptibilities of tested foodborne pathogenic bacterium species were found. PF-TiO2/3 h and PF-TiO2/6 h showed the highest antibacterial activity by decreasing the living bacterial cell number from ~106 by ~5 log (L. monocytogenes), ~4 log (EHEC), ~3 log (Y. enterolcolitca, S. putrefaciens) and ~2.5 log (S. aureus), along with complete eradication of C. jejuni and S. Typhimurium. Efficacy of PF-TiO2/1 h and PF-TiO2/12 h NPs was lower, typically causing a ~2–4 log decrease in colony forming units depending on the tested bacterium while the effect of PF-TiO2/0 h was comparable to P25 TiO2, a commercial TiO2 with high photocatalytic activity. Our results show that PF-co-doping of TiO2 NPs enhanced the antibacterial action against foodborne pathogenic bacteria and are potential candidates for use in the food industry as active surface components, potentially contributing to the production of meats that are safe for consumption.

scholarly journals Incidence and characterisation of Bacillus cereus bacteriophages from Thua Nao, a Thai fermented soybean product

2021 ◽  
Vol 12 (1) ◽  
pp. 85-93
Author(s):  
Wallapat Phongtang ◽  
Ekachai Chukeatirote
Keyword(s):  
Bacillus Cereus ◽  
Food Industry ◽  
Pathogenic Bacteria ◽  
Morphological Analysis ◽  
Food Poisoning ◽  
Fermented Soybean ◽  
Foodborne Pathogenic Bacteria ◽  
Ph Range ◽  
Potential Use

Abstract Bacillus cereus is considered to be an important food poisoning agent causing diarrhea and vomiting. In this study, the occurrence of B. cereus bacteriophages in Thai fermented soybean products (Thua Nao) was studied using five B. cereus sensu lato indicator strains (four B. cereus strains and one B. thuringiensis strain). In a total of 26 Thua Nao samples, there were only two bacteriophages namely BaceFT01 and BaceCM02 exhibiting lytic activity against B. cereus. Morphological analysis revealed that these two bacteriophages belonged to the Myoviridae. Both phages were specific to B. cereus and not able to lyse other tested bacteria including B. licheniformis and B. subtilis. The two phages were able to survive in a pH range between 5 and 12. However, both phages were inactive either by treatment of 50°C for 2 h or exposure of UV for 2 h. It should be noted that both phages were chloroform-insensitive, however. This is the first report describing the presence of bacteriophages in Thua Nao products. The characterization of these two phages is expected to be useful in the food industry for an alternative strategy including the potential use of the phages as a biocontrol candidate against foodborne pathogenic bacteria.

scholarly journals Food Safety and Food Waste in One Portuguese Public Hospital

Proceedings ◽  
2020 ◽  
Vol 70 (1) ◽  
pp. 36
Author(s):  
Carla Gonçalves ◽  
Ana Gomes ◽  
Alexandra Esteves ◽  
José António Silva ◽  
Cristina Maria Saraiva
Keyword(s):  
Staphylococcus Aureus ◽  
Food Safety ◽  
Bacillus Cereus ◽  
Food Waste ◽  
Estimation Method ◽  
Physical Method ◽  
Salmonella Spp ◽  
Hospital Units ◽  
Development Goals ◽  
And Staphylococcus Aureus

The present study aims to contribute to sustainable development goals by increasing knowledge of food safety and food waste of meals produced by the cook–chill system in hospital units. The food waste (FW) of meals served at lunch was evaluated for all new hospitalized patients with light diet (n = 17) and soft texture diet (n = 10), during their hospital stay, using the physical method by weighing for dish and the visual estimation method for the soup. Samples of each diet (light, n = 3; soft texture, n = 3) were also collected in four different moments (after cooked, after cold transportation, after refrigerated storage and after hot regeneration) for detection and enumeration of Listeria monocytogenes, Salmonella spp. and Staphylococcus aureus and enumeration of Escherichia coli, Clostridium spp., Bacillus cereus, Enterobacteriaceae, total viable counts (TVC) at 30 °C, as well as pH, water activity, moisture, ashes and protein. The FW (%) of the light diet (n = 64) was 39.8 ± 6.3 in dish and 14.9 ± 5.4 in soup, and of the soft texture diet (n = 51) was 65.1 ± 9.0 in dish and 39.0 ± 5.8 in soup. Regarding the percentage of protein per meal, both light (8.73%) and soft (3.33%) diets presented on average values lower than those recommended by the WHO (10–15% protein). The value of different microorganisms varied along the production moments; however, the final products in the light diet (after hot regeneration) presented 1.34–1.73 log cfu/g of TVC. Counts of Bacillus cereus and Staphylococcus aureus were also obtained at low levels (less than 1 log cfu/g). Besides these results, the risk of foodborne diseases should be considered. The implementation of effective measures to increase food safety and reduce FW in hospital is crucial.

Potent antimicrobial target in Staphylococcus aureus by bioinformatics analysis

2019 ◽  
Author(s):  
Mina Mahmoudi ◽  
Maryam Mohamadian ◽  
abbas maleki ◽  
nourkhoda Sadeghifard ◽  
sobhan ghafourian
Keyword(s):  
Staphylococcus Aureus ◽  
Experimental Study ◽  
Atopic Dermatitis ◽  
Antimicrobial Therapy ◽  
Toxic Shock Syndrome ◽  
Pathogenic Bacteria ◽  
Bioinformatics Analysis ◽  
Food Poisoning ◽  
Toxic Shock ◽  
Colonization Ability

Abstract Objectives: Staphylococcus aureus could be considerable pathogenic bacterium because it can be changed from a microbiome to a lethal pathogen. Another remarkable ability of this bacterium is its colonization ability, which has been cloned in one-third of the world's population. Also, one of the most important issue in S. aureus is its severe resistance to antibiotics, which can lead to failure in antimicrobial therapy in many diseases such as abscesses, sinusitis, food poisoning, toxic shock syndrome, atopic dermatitis as well as it is one of the five major causes of nosocomial infections, especially post- surgical ulcers. therefore, find a novel antimicrobial target for S. aureus is crucial. Some studies demonstrated that toxin antitoxin systems can be the regulon for controlling the pathogenic bacteria. To identify the reliable antimicrobial targets, bioinformatics analysis before any experimental study could be helpful. Results: we evaluate the potent TA loci of 36 S. aureus strains by bioinformatics analysis. As regards, this analysis was performed with Rasta data base, toxin antitoxin systems distributions were seen in all scores and the htx-xre has the preponderance total frequency, which we hope will be beneficial for further researches.

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