scholarly journals Edukasi Cemaran Mikroba Kosmetik Kelompok PKK RW 09 Kelurahan Klegen Kecamatan Kartoharjo Perumahan Bumi Antariksa Madiun

2020 ◽  
Vol 5 (1) ◽  
pp. 7-11
Author(s):  
Erlien Dwi Cahyani ◽  
Agus Purwanto
Keyword(s):  
Microbial Growth ◽  
Microbial Contamination ◽  
Cosmetic Products ◽  
Educational Activities ◽  
Increasing Knowledge ◽  
Keywords Education ◽  
And Storage ◽  
Partner Knowledge

The wider community, especially mothers and adolescents, have not been aware of the importance of using hygienic cosmetic products. Microbial contamination in cosmetics can occur due to the use of unhygienic applicators and the exchange of cosmetics between users. In addition, improper cosmetics storage in warm and humid places triggers microbial growth. Based on this, it is necessary to educate cosmetic microbial contamination of PKK RW 09 Bumi Antariksa Residence Madiun. The activities carried out through lectures, interactive discussions, consultations and assistance related to the use of cosmetics material and storage are good to minimize microbial contamination. Educational activities have succeeded in increasing partner knowledge about the correct handling of cosmetics including the use, the expiration of cosmetics and its storage and increasing knowledge concerning the prevention of microbial contamination in cosmetics including the correct handling of applicators and the use of cosmetics together. Keywords—: education; microbial contamination; cosmetics; bumi antariksa.

scholarly journals Microbial contamination of stored hydrocarbon fuels and its control

1999 ◽  
Vol 30 (1) ◽  
pp. 01-10 ◽  
Author(s):  
Christine C. Gaylarde ◽  
Fátima M. Bento ◽  
Joan Kelley
Keyword(s):  
Microbial Growth ◽  
Microbial Contamination ◽  
Petroleum Refining ◽  
Hydrocarbon Fuel ◽  
Storage Tanks ◽  
End User ◽  
Heavy Petroleum ◽  
Petroleum Fractions ◽  
The Many ◽  
And Storage

The major microbial problem in the petroleum refining industry is contamination of stored products, which can lead to loss of product quality, formation of sludge and deterioration of pipework and storage tanks, both in the refinery and at the end-user. Three major classes of fuel are discussed in this article - gasoline, aviation kerosene and diesel, corresponding to increasingly heavy petroleum fractions. The fuel that presents the most serious microbiological problems is diesel. The many microorganisms that have been isolated from hydrocarbon fuel systems are listed. The conditions required for microbial growth and the methods used to monitor and to control this activity are discussed. The effects of various fuel additives, including biocides, are considered.

scholarly journals Postharvest Supply Chain with Microbial Travelers: a Farm-to-Retail Microbial Simulation and Visualization Framework

2018 ◽  
Vol 84 (17) ◽  
Author(s):  
Claire Zoellner ◽  
Mohammad Abdullah Al-Mamun ◽  
Yrjo Grohn ◽  
Peter Jackson ◽  
Randy Worobo
Keyword(s):  
Supply Chain ◽  
Foodborne Pathogens ◽  
Empirical Data ◽  
Microbial Growth ◽  
Microbial Contamination ◽  
Fresh Produce ◽  
The United States ◽  
Plate Count ◽  
Modeling Tool ◽  
Parameter Ranges

ABSTRACTFresh produce supply chains present variable and diverse conditions that are relevant to food quality and safety because they may favor microbial growth and survival following contamination. This study presents the development of a simulation and visualization framework to model microbial dynamics on fresh produce moving through postharvest supply chain processes. The postharvest supply chain with microbial travelers (PSCMT) tool provides a modular process modeling approach and graphical user interface to visualize microbial populations and evaluate practices specific to any fresh produce supply chain. The resulting modeling tool was validated with empirical data from an observed tomato supply chain from Mexico to the United States, including the packinghouse, distribution center, and supermarket locations, as an illustrative case study. Due to data limitations, a model-fitting exercise was conducted to demonstrate the calibration of model parameter ranges for microbial indicator populations, i.e., mesophilic aerobic microorganisms (quantified by aerobic plate count and here termed APC) and total coliforms (TC). Exploration and analysis of the parameter space refined appropriate parameter ranges and revealed influential parameters for supermarket indicator microorganism levels on tomatoes. Partial rank correlation coefficient analysis determined that APC levels in supermarkets were most influenced by removal due to spray water washing and microbial growth on the tomato surface at postharvest locations, while TC levels were most influenced by growth on the tomato surface at postharvest locations. Overall, this detailed mechanistic dynamic model of microbial behavior is a unique modeling tool that complements empirical data and visualizes how postharvest supply chain practices influence the fate of microbial contamination on fresh produce.IMPORTANCEPreventing the contamination of fresh produce with foodborne pathogens present in the environment during production and postharvest handling is an important food safety goal. Since studying foodborne pathogens in the environment is a complex and costly endeavor, computer simulation models can help to understand and visualize microorganism behavior resulting from supply chain activities. The postharvest supply chain with microbial travelers (PSCMT) model, presented here, provides a unique tool for postharvest supply chain simulations to evaluate microbial contamination. The tool was validated through modeling an observed tomato supply chain. Visualization of dynamic contamination levels from harvest to the supermarket and analysis of the model parameters highlighted critical points where intervention may prevent microbial levels sufficient to cause foodborne illness. The PSCMT model framework and simulation results support ongoing postharvest research and interventions to improve understanding and control of fresh produce contamination.

Household greywater use practices in Melbourne, Australia

2013 ◽  
Vol 13 (2) ◽  
pp. 294-301 ◽  
Author(s):  
M. Sinclair ◽  
J. O'Toole ◽  
M. Malawaraarachchi ◽  
K. Leder
Keyword(s):  
Urban Areas ◽  
Microbial Contamination ◽  
Tap Water ◽  
Severe Drought ◽  
Urban Water ◽  
Housing Developments ◽  
End Use ◽  
Volume Estimates ◽  
And Storage ◽  
Greywater Reuse

Research on the potential of greywater reuse to reduce urban tap water demand has focused mainly on permanently installed greywater treatment or irrigation systems. These may be readily implemented in new housing developments, but experience in Australia shows their uptake by established households in urban areas is low. The majority of households employ simple and temporary methods for greywater collection and use, but their behaviour has not been well documented. We characterised the greywater use practices of over 1,000 Melbourne households during a 5-year period (2007 to 2011) which included 3 years of severe drought with stringent restrictions on outdoor tap water use. Greywater was most frequently collected from the laundry and bathroom, and generally used within 24 hours. Garden watering was the most common end use, and treatment of greywater to reduce microbial contamination was very rare. Volume estimates by householders suggest that on average around 10% of tap water used in the home was being collected for reuse. When drought conditions and water restrictions eased, over 40% of user households discontinued greywater use. Widespread adoption of permanent greywater collection, treatment and storage systems by households would be required to achieve a lasting effect on urban water consumption.

Risk Assessment of Cosmetic Preservatives Using QSAR

2020 ◽  
Vol 5 (1) ◽  
pp. 44-62
Author(s):  
Monika Bhardwaj ◽  
Neeraj Masand ◽  
Jagannath Sahoo ◽  
Vaishali M. Patil
Keyword(s):  
Microbial Contamination ◽  
Antimicrobial Agents ◽  
Quantitative Structure Activity Relationship ◽  
Toxicity Assessment ◽  
Cosmetic Products ◽  
Toxicity Prediction ◽  
Safety And Efficacy ◽  
Regulatory Aspects ◽  
Structure Activity ◽  
Consumer Safety

Cosmetic manufacturers need to demonstrate the safety and efficacy of the products against microbial contamination to assure consumer safety and to improve shelf-life. The preservation strategies include chemical, physical, or physiological strategies. The most common is the use of antimicrobial agents. The toxicity assessment of preservatives used in cosmetic products is essential. It can be done by computational methods such as quantitative structure-activity relationship (QSAR) using several software such as ADME-Tox, TOPKAT, Dragon, T.E.S.T., and ECOSAR. The present manuscript elaborates a detailed view on cosmetic preservatives, regulatory aspects and application of computational strategies for toxicity prediction.

Effects of Temperature, Light and Storage Time on the Microflora of Vacuum- or Nitrogen-Packed Frankfurters

1983 ◽  
Vol 46 (3) ◽  
pp. 199-205 ◽  
Author(s):  
R. E. SIMARD ◽  
B. H. LEE ◽  
C. L. LALEYE ◽  
R. A. HOLLEY
Keyword(s):  
Storage Time ◽  
Microbial Growth ◽  
Initial Level ◽  
Anaerobic Bacteria ◽  
Nitrogen Gas ◽  
Storage Duration ◽  
Effects Of Temperature ◽  
Mold And Yeast ◽  
Spoilage Microflora ◽  
And Storage

Frankfurters were vacuum- or nitrogen- packaged and stored at −4, 0, 3 and 7°C for 49 d under light or dark display conditions. Effects of temperature, light and storage duration on microflora in vacuum- and nitrogen-packed sausages were then examined. Differences in number of lactobacilli, psychrotrophic and anaerobic bacteria in vacuum- or nitrogen-packed samples were not statistically significant during storage tests. Lactobacillus development was slightly higher in nitrogen gas compared to vacuum packages, but was also not significantly different. The effectiveness of nitrogen packaging on yeast and mold inhibition was significant, particularly at higher temperatures (3 and 7°C). Nitrogen gas packaging thus offers little advantage over vacuum to promote lactobacillus development, but it is particularly effective against growth of mold and yeast. Initially, the dominant flora of both package samples consisted of Pseudomonas and Microbacterium sp. but Lactobacillus sp. became the predominant psychrotrophs (85.2–96.3%) after 49 d of storage, regardless of different treatments. Temperature was the most important factor which influenced growth of the microflora on frankfurters; freezing temperatures of −4 and 0°C were an effective insurance against development of spoilage microflora in frankfurters for up to 49 d, regardless of packaging atmosphere. With an initial level of 10 to 103 coliforms per gram, there was no significant change in the number of coliforms during storage. Light had no important influence on microbial growth in frankfurters, irrespective of packaging atmosphere.

scholarly journals Decontamination and Validation of Isolators for Sterility Testing

2016 ◽  
Vol 50 (s3) ◽  
pp. 27-33
Author(s):  
Maria Luisa Bernuzzi
Keyword(s):  
Hydrogen Peroxide ◽  
Microbial Growth ◽  
Microbial Contamination ◽  
Operative Procedure ◽  
False Negatives ◽  
Typical Application ◽  
Sterility Testing ◽  
Integrity Verification ◽  
Sterility Test ◽  
Good Laboratory

Abstract Decontamination with hydrogen peroxide is a technology widely used to reduce microbial contamination. A typical application of this technology is in the decontamination of sterility test isolators. This article describes how to decontaminate sterility test isolators and validate the process in order to demonstrate that the microbiological target has been achieved and that the risk of false negatives due to residuals of hydrogen peroxide is excluded. Hydrogen peroxide can adversely affect some materials, resulting in inhibition of microbial growth. A package integrity verification, focused on the risk of penetration of decontaminating agent into different product containers and through different materials, is one of the main topics. Several case studies let readers understand the most critical items, choose their materials correctly, and validate the process itself. Hydrogen peroxide measurements on the surface of several materials, inside the primary packaging container, and inside aqueous solutions are part of this article. Validation of the decontamination cycle as well as validation of the operative procedure are key elements for a good laboratory practices approach.

Microorganisms as a Replacement for Metal Working Fluids

2014 ◽  
Vol 966-967 ◽  
pp. 357-364 ◽  
Author(s):  
Marvin Redetzky ◽  
Andreas Rabenstein ◽  
B. Palmowski ◽  
Ekkard Brinksmeier
Keyword(s):  
Paradigm Shift ◽  
Microbial Growth ◽  
Microbial Contamination ◽  
Mineral Oil ◽  
Metal Working ◽  
Technical Performance ◽  
Cell Counts ◽  
Metalworking Fluid ◽  
Water Based ◽  
Lubrication Properties

Most of the several billion liters of metalworking fluid (MWF) used worldwide and annually are water-based and thus prone to a microbial contamination. The microbial growth leads to a deterioration and therefore to a loss of quality and technical performance. In most cases, biocides, which pose a potential risk to health and environment, are used to reduce the microbial load. To avoid these limitations, the paradigm shift of using microorganisms in a positive way in a manufacturing process as a lubricant is investigated in this paper. Some microorganisms are able to synthesize equivalent MWF components like e.g. fatty acids or sulfur compounds. Due to this fact, it is possible to create a regenerative system on a microbiological basis for the substitution of mineral oil containing MWF components. To demonstrate the lubrication potential of bacteria, preliminary investigations were conducted on a Brugger-tribotester. Against this background, the approach presented here intends to investigate the lubrication properties of special microorganisms and the influence of the microbial cell counts on the lubrication behavior respectively. The results of the tribological tests show that the microbial-suspensions exhibit Brugger-values as high as highly concentrated conventional MWF and indicate the potential to replace these respective components.

Effects of soil drying and storage on subsequent microbial growth

1979 ◽  
Vol 11 (3) ◽  
pp. 317-319 ◽  
Author(s):  
G.P. Sparling ◽  
M.V. Cheshire
Keyword(s):  
Microbial Growth ◽  
Soil Drying ◽  
And Storage

scholarly journals PENGARUH KONSENTRASI PEKTIN DALAM SUHU DAN WAKTU PENYIMPANAN BERBEDA TERHADAP KARAKTERISTIK PELEMBAB KULIT

2017 ◽  
Vol 4 (2) ◽  
pp. 187
Author(s):  
Herlina Eva Fitriani ◽  
Supriyono Eko Wardoyo ◽  
Amry Syawaalz
Keyword(s):  
Specific Gravity ◽  
Storage Time ◽  
Microbial Contamination ◽  
Emulsion Stability ◽  
Ph Value ◽  
Optimum Concentration ◽  
Synthetic Material ◽  
Characteristic Appearance ◽  
And Storage

Effect of Concentration of Pectin in Different Temperature and Storage Time on Characteristics of Skin Moisturizing        The use of pectin as a substituent a synthetic material in the manufacture of skin moisturizers can support the reuse of natural ingredients for skin care . This study aimed to obtain optimum concentrations in the preparation of skin moisturizers and to see the characteristics of skin moisturizer with the addition of the pectin concentration . The result showed the optimum concentration of pectin in the preparation of moisturizing the skin with a concentration of 0.05 % with a characteristic appearance ( viscosity ) was most preferably , the pH value of 7.08 ; a specific gravity of 0.98 g / ml ; viscosity of 2229 cP , emulsion stability of 100 % , and there was no microbial contamination in accordance with the standard of quality of skin moisturizersKeyword:. Pectin, concentration, characteristics, skin moisturizing ABSTRAK         Penggunaan pektin sebagai pensubstitusi bahan sintetik dalam pembuatan pelembab kulit dapat mendukung penggunaan kembali bahan-bahan alami untuk perawatan kulit. Penelitian ini bertujuan untuk mendapatkan konsentrasi optimum dalam sediaan pelembab kulit dan mempelajari karakteristik pelembab kulit dengan penambahan konsentrasi pektin.  Hasil penelitian didapatkan konsentrasi optimum pektin dalam sediaan pelembab kulit dengan konsentrasi 0,05 % dengan karakteristik penampakan (kekentalan) yang paling disukai, nilai pH 7,08; bobot jenis 0,98 g/ml; viskositas 2229 cP, stabilitas emulsi 100 %, dan tidak terdapat cemaran mikroba sesuai dengan syarat mutu pelembab kulit..Kata kunci: Pektin, konsentrasi, karakteristik, pelembab kulit

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