scholarly journals Inactivation of Airborne Viruses using Newly Designed Emitron

2022 ◽  
Vol 1 (3) ◽  
pp. 1-4
Author(s):  
Ramakrishna K ◽  
◽  
Chaya K ◽  
Rohit S Mane ◽  
◽  
...  

The objective of the current research is to validate the microbiological quality of Emitron against MS2 phage, Corona virus, bacteria, yeast, and molds. Unimech healthcare designed PMEE based Emitron which is mostly used to reduce the microbial count and virus count in an area. To perform microbiological testing of the Emitron, environmental monitoring was performed for MS2 phage, Corona virus, bacteria, yeast, and molds before and after treatment by settle plate method. Petri plates of sterilized Phage agar, SCDA and PDA media were prepared and exposed for environment monitoring before and after treatment by settle plate method. The phage agar and SCDA plates were incubated at 37°C for 72 hours and PDA plates incubated at 25°C for 5 days. Total of 99% reduction was reported in microbiology lab with respect to the microorganisms after installing Emitron. We can conclude that the Unimech healthcare’s Emitron is virus attenuation device so one can use it to purify the air and kill the viruses, bacteria, fungi, and other microbes.

Author(s):  
Ramakrishna K ◽  
◽  
Chaya K ◽  
Rohit S Mane ◽  
◽  
...  

The objective of the current research is to validate the microbiological quality of Emitron against MS2 phage, Corona virus, bacteria, yeast, and molds. Unimech healthcare designed PMEE based Emitron which is mostly used to reduce the microbial count and virus count in an area. To perform microbiological testing of the Emitron, environmental monitoring was performed for MS2 phage, Corona virus, bacteria, yeast, and molds before and after treatment by settle plate method. Petri plates of sterilized Phage agar, SCDA and PDA media were prepared and exposed for environment monitoring before and after treatment by settle plate method. The phage agar and SCDA plates were incubated at 37°C for 72 hours and PDA plates incubated at 25°C for 5 days. Total of 99% reduction was reported in microbiology lab with respect to the microorganisms after installing Emitron. We can conclude that the Unimech healthcare’s Emitron is virus attenuation device so one can use it to purify the air and kill the viruses, bacteria, fungi, and other microbes.


Author(s):  
Katarzyna Kazimierska ◽  
Wioletta Biel ◽  
Robert Witkowicz ◽  
Jolanta Karakulska ◽  
Xymena Stachurska

AbstractIn addition to properly balancing nutritional value in accordance with the needs of a dog, estimating the microbiological quality of dog food is crucial in providing healthy and safe foods. The aim of this study was to examine the quality of dry food for adult dogs, with particular reference to: (1) evaluating the nutritional value and compliance with nutritional guidelines for dogs, (2) comparing the nutritional value of dog foods, with particular emphasis on the division into cereal and cereal-free foods, and (3) evaluating their microbiological safety. All thirty-six evaluated dry dog foods met the minimum European Pet Food Industry FEDIAF requirement for total protein and fat content. The total aerobic microbial count in the analyzed dry dog foods ranged from 2.7 × 102 to above 3.0 × 107 cfu/g. In five (14%) dog foods the presence of staphylococci was detected; however, coagulase positive Staphylococcus (CPS) was not found. Mold presence was reported in one cereal-free dog food and in six cereal foods. In none of the analyzed foods Enterobacteriaceae were found, including coliforms, Escherichia coli and Salmonella spp. Bacteria of the genus Listeria and Clostridium as well as yeasts were also not detected. In conclusion, the evaluated dry dog foods had varied microbiological quality. The detected number of microorganisms may have some implications for long-term consumption of contaminated food. The lack of European Commission standards regarding the permissible amounts of microorganisms in pet food may result in insufficient quality control of these products.


2020 ◽  
Vol 22 (1) ◽  
pp. 17-26
Author(s):  
A.O. Oyedele ◽  
O.A. Igbeneghu ◽  
T.I. Alade ◽  
O.O. Akinmusire

Natural shea butter (NSB), extracted by traditional methods resulting in its poor quality, is nevertheless widely traded within Africa and beyond due to its several useful applications. This study examined effects of simulated laboratory/domestic heat treatments on quality of the commodity obtained from a cross section of Nigerian markets. Physicochemical and microbiological qualities of NSB samples procured from four selected  markets located across three Nigerian states were evaluated by standard methods before and after graduated thermal stress treatments from 50 through 120 °C over 5, 15, or 30 min durations, respectively, and filtration at 60 °C. Mean physicochemical quality values of NSB samples determined, namely: specific gravity at 29 °C (0.90-0.94); softening, melting temperatures (33-36, 36-39 °C; respectively); acid, iodine, and saponification values (10.5- 29.3, 46.4-59.1, 110-470; respectively), were not adversely or significantly altered by the thermal treatment types and stresses. Whereas all untreated NSB samples demonstrated microbial contamination (total viable counts: 3 6 10 -10 cfu/g) with Pseudomonas, Klebsiella, Staphylococcus, Bacillus, Aspergillus, or Candida species, the graduated heat treatments produced varied sanitizing effects. Higher temperatures (100, 120 °C) gave greater and more rapid cleansing action than the lower temperatures (50, 75 °C), both intensity-ranges being aided by length of holding time. Hot filtration eliminated all the NSB contaminants. In conclusion, while untreated NSB is found grossly contaminated by microbes, unhygienic and unsafe for human use, this study has demonstrated efficient contaminants-cleansing action of heat treatments (³100 °C × ³ 30 min) on NSB, and the total sanitizing effect of hot filtration process. Key words: Natural shea butter, Physicochemical quality, Microbiological quality, Heat treatment, Hot filtration.


Author(s):  
Saad Hikmat Haji ◽  
Amira B. Sallow

Air pollution, water pollution, and radiation pollution are significant environmental factors that need to be addressed. Proper monitoring is crucial with the goal that by preserving a healthy society, the planet can achieve sustainable development. With advancements in the internet of things (IoT) and the improvement of modern sensors, environmental monitoring has evolved into a smart environment monitoring (SEM) system in recent years. This article aims to have a critical overview of significant contributions and SEM research, which include monitoring the quality of air , water pollution, radiation pollution, and agricultural systems. The review is divided based on the objectives of applying SEM methods, analyzing each objective about the sensors used, machine learning, and classification methods. Moreover, the authors have thoroughly examined how advancements in sensor technology, the Internet of Things, and machine learning methods have made environmental monitoring into a truly smart monitoring system.


2014 ◽  
Vol 63 (2) ◽  
pp. 237-243 ◽  
Author(s):  
ROWAIDA KHALIL ◽  
MOHAMED GOMAA

This is a pioneer study in Egypt that provides some assessment of the microbiological quality of conventional and organic leafy green vegetables that constitute an essential component of the Egyptians' daily diet. A total of 380 samples of unpackaged whole conventional and 84 packaged whole organic leafy greens were collected from retail markets in Alexandria, and analyzed for total aerobic mesophilic count (AMC) and total E. coli count (ECC) using the standard spread plate method. Mean AMC values for organic samples were statistically less (p < 0.05) than those of the corresponding conventional samples. Conventional radish and organic parsley samples had the highest AMC of 7.17 and 7.68 log CFU/g respectively, while conventional green cabbage and organic basil had the lowest AMC of 3.63 and 3.23 log CFU/g respectively. The presence of E. coli in 100% of the studied leafy greens was indicative of potential fecal contamination, in view of open and unhygienic environmental and unsanitary handling conditions, as leafy green items are available for sale by street-vendors. Unsatisfactory AMC and ECC levels encountered in the studied samples, warrant future investigations to determine the potential prevalence of foodborne pathogens, and to identify sources of dominating microorganisms, which could make a contribution to the field of food safety.


1997 ◽  
Vol 60 (7) ◽  
pp. 795-798 ◽  
Author(s):  
R. K. PRASAI ◽  
C. L. KASTNER ◽  
P. B. KENNEY ◽  
D. H. KROPF ◽  
D. Y. C. FUNG ◽  
...  

Beef strip loins were sprayed with 1.5% (vol/vol) lactic acid before and/or after 14, 28, 56, 84, and 126 days of vacuum-packaged storage at −1.1 or 2°C to assess the effects on bacteria. Five different treatment combinations including a control (no spray treatment) and one treatment with prestorage acid spray followed by poststorage water spray (A/W) were evaluated. Compared to the controls, 97% of all acid-treated loins had lower microbial counts throughout the storage period. Prestorage acid spray (A/0) was more effective than poststorage acid spray (0/A)with the greatest effects (P &lt; 0.05) being observed on day 28, where the bacterial population was reduced by 1.9 and 1.5 log CFU/cm2 for loins stored at −1.1 and 2°C, respectively. Microbial counts for loins with A/A(acid spray both before and after vacuum storage) or A/W treatments were lower than but not significantly different from A/0 (P &gt; 0.05). Poststorage washing resulted in a minimal decontaminating effect, irrespective of the washing agent used. In addition, single spray treatment immediately after fabrication seems more effective and practical than a double spray. Temperature main effects showed that colder temperature (−1.1 versus 2°C) reduced (P &lt; 0.03) microbial growth throughout the storage period. Salmonella contamination was not detected in any samples; however, 28% of the control and 4% of the spray-treated loins were positive for Listeria spp. Appropriate time of acid application in combination with colder storage temperature improved the microbiological quality of meat for at least four weeks.


Author(s):  
Jadwiga Stankiewicz ◽  
Beata Wieczorkiewicz

The aim of the research was to evaluate selected microbiological features of apple juice available on the Tri-City market. The test material consisted of 30 samples of unpasteurized, one-day apple juices. In the research material coming from various commercial establishments, the total number of mesophilic aerobic bacteria and the number of filamentous fungi and yeast populations was determined. Microbiological tests were carried using the traditional plate method according to the current methodological standards, on the day of purchase and after 24 hours of refrigerated storage of the product. A higher number of mesophilic aerobic bacteria populations were characterized by apple juices produced for retail chains, both on the day of product purchase and after 24 hour storage in refrigeration conditions in relation to private brand juices.


1970 ◽  
Vol 24 (2) ◽  
pp. 166
Author(s):  
M Abdul Basar ◽  
Sabita Rezwana Rahman

The present study was performed to evaluate the microbiological quality of industrially processed packed juices such as mango, orange and lemon of five different local companies. Aerobic plate count (APC) in juice samples was nil when measured before and after neutralization of pH. However, after enrichment of couple of samples growth of bacteria was observed on nutrient agar and MacConkey agar media. Sample A showed 120 cfu/ml after 3 h on nutrient agar and 20 cfu/ml after 5 h on MacConkey agar medium. These findings indicate that manufacturers might use high amount of preservatives that had bacteriostatic effect on microbes. It can be suggested that processed juices should be prepared under hygienic condition without use of high amount of preservatives that might cause health hazard.Keywords: Fruit juice, Bacterial count, Preservatives, EnrichmentDOI: http://dx.doi.org/10.3329/bjm.v24i2.1267


2020 ◽  
Vol 5 (4) ◽  
Author(s):  
Yulianti Pratama ◽  
Nadya Almira Rachman

Food sanitation is one of the methods used to protect food from contamination, maintain quality, and prevent potential bacterial transmission. This research was conducted to observe potential diseases caused by the microbiological quality of clean water for household use. MPN method was used to compare the quality of clean water based on the Peraturan Menteri Kesehatan Nomor 416 Tahun 1990. Swab method was implemented to observe the hygiene level of the cutlery to compare with the Peraturan Menteri Kesehatan Nomor 1098 Tahun 2003. 79/100 ml of total coliform found in tenant 1 and tenant 2 which means it did not meet the standards. Escherichia coli were found absent in both clean water sources. The same result comes from 2 samples of plates and spoons before and after the first usage and second usage. In tenant 2, Escherichia coli were found in plate sample no.1 before usage and the clerk’s hands before serving the food. Hence, it did not meet the standards. Based on the interviews and observations, the sanitation hygiene of the clerks and the physical hygiene of tenant 1 and tenant 2 had only fulfilled 61.9% and 57.1% of proper hygiene, so it needed to be improved.


2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Solomon Opoku ◽  
Isaac Nyanor

Infants and children under five years generally have high susceptibility to pathogenic and opportunistic infections due to immaturity and inexperience of their immune responses. The lives of these young children are threatened when they consume pharmaceutical preparations of poor microbiological quality. Considering the widespread use of artemether-lumefantrine dry powder and paracetamol syrup among the general population in Ghana, there is a need to investigate the microbiological quality and safety of these paediatric pharmaceutical preparations. The study investigated the microbiological quality of 180 samples comprising 90 artemether-lumefantrine dry powders and 90 paracetamol syrups. The samples were tested for presence of specified indicator pathogens, Total Aerobic Microbial Count (TAMC), and Total Yeasts and Moulds Count (TYMC) using compendial procedures. Results from the study indicated that 16 (17.78%) of the paracetamol syrup samples showed bioburden levels above United States Pharmacopeia (USP) maximum acceptable limit, but none of the artemether-lumefantrine dry powder samples recorded microbial load above the limit of USP. Four samples of paracetamol syrup and 4 samples of artemether-lumefantrine dry powder showed presence of P. aeruginosa, whereas 5 samples of paracetamol syrup were found to be contaminated with Salmonella spp. Overall, 4.44% of the artemether-lumefantrine dry powders and 25.56% of the paracetamol syrups were found to be noncompliant with USP specifications for nonsterile pharmaceutical preparations for oral use. This study has revealed the existence of substandard paediatric pharmaceutical products in the Ghanaian market, hence the need for regulatory bodies to intensify monitoring and postmarketing surveillance programmes to help get rid of these products from the market.


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