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1. Interlaboratory study comparing two fuel microbiology standard test methods

Author:
Passman, F.J.; Kelley, J.; Whalen, P.
Source:
International biodeterioration & biodegradation 2019 v.141 pp. 17-23
ISSN:
0964-8305
Subject:
microbial contamination,   etc   ; adenosine triphosphate; antigens; fuels;     Show all 4 Subjects
Abstract:
... Two ASTM standard test methods for determining microbial contamination in fuels and fuel-associated water were compared in a joint interlaboratory study. One method measured cellular adenosine triphosphate (cATP) and the other detected specific microbial antigens. The latter was a lateral flow device (LFD). The results illustrate the degree of agreement between the two methods. Representatives of ...
DOI:
10.1016/j.ibiod.2018.07.005

2. ATP bioluminescence method: tool for rapid screening of organic and microbial contaminants on deteriorated mural paintings

Author:
Unković, Nikola; Ljaljević Grbić, Milica; Stupar, Miloš; Vukojević, Jelena; Subakov-Simić, Gordana; Jelikić, Aleksa; Stanojević, Dragan
Source:
Natural product research 2019 v.33 no.7 pp. 1061-1069
ISSN:
1478-6427
Subject:
microbial contamination,   etc   ; adenosine triphosphate; bioluminescence; biomarkers; rapid methods; Ascension; Serbia;     Show all 7 Subjects
Abstract:
... The extent of the microbial contamination of the seventeenth-century wall paintings in the nave of the old Church of the Holy Ascension (Veliki Krčimir, Serbia) was evaluated via newly implemented ATP bioluminescence method, and traditional cultivation-based method, utilising commercially available dip slides. To assess the validity of ATP, as a biomarker for rapid detection of mural surface conta ...
DOI:
10.1080/14786419.2015.1108975

3. Furukawa Agar – A novel bacteriological agar designed to inhibit fungal contamination when sampling organic compost

Author:
Furukawa, Maika; Stirling, Jonathan; Misawa, Naoaki; Moore, John E.
Source:
Journal of microbiological methods 2018 v.144 pp. 88-90
ISSN:
0167-7012
Subject:
microbial contamination,   etc   ; agar; bacteria; composts; fungi;     Show all 5 Subjects
Abstract:
... A novel bacteriological agar, named Furukawa Agar, has been specifically designed to inhibit the growth of filamentous fungi during microbiological examination of bacteria from organic compost, thereby allowing complete analysis of the resulting bacterial organisms, without the overgrowth with filamentous fungi. ...
DOI:
10.1016/j.mimet.2017.10.012

4. Bugs à la carte: Microbial contamination of electronic menus

Author:
Bottari, Benedetta; Ghidini, Sergio; Neviani, Erasmo
Source:
Trends in food science & technology 2019 v.90 pp. 158-159
ISSN:
0924-2244
Subject:
microbial contamination,   etc   ; cleaning; computers; consumers (people); control methods; disease transmission; menu planning; pathogens; restaurants; virulent strains;     Show all 10 Subjects
Abstract:
... The use of electronic menus has become frequent, with numerous advantages for customers and the restaurateur. As a result, mobile technological devices including tablet computers are increasingly used to replace the classic paper menu. This trend raises questions about control measures to avoid the transmission of pathogens through this new technology as it has been shown that tablet computers can ...
DOI:
10.1016/j.tifs.2019.06.002

5. Evaluation of microbial contamination of canine plasma eyedropper bottles following clinical use in canine patients

Author:
Strauss, Rachel A.; Genschel, Ulrike; Allbaugh, Rachel A.; Sebbag, Lionel; Ben‐Shlomo, Gil
Source:
Veterinary ophthalmology 2019 v.22 no.3 pp. 222-228
ISSN:
1463-5216
Subject:
microbial contamination,   etc   ; bacterial culture; bacterial growth; bottles; cornea; dogs; fungal culture; keratitis; ophthalmology; patients;     Show all 10 Subjects
Abstract:
... OBJECTIVE: To investigate microbial contamination of canine plasma eye drops when used clinically and to compare the effect of two different eyedropper bottles on contamination rate. METHODS: Forty‐six bottles containing plasma were randomly dispensed for use on 42 dogs with ulcerative keratitis. Of these, 23 were standard eyedropper bottles and 23 were Novelia® bottles designed to prevent contami ...
DOI:
10.1111/vop.12580

6. Factors Affecting the Growth of Pseudokirchneriella subcapitata in Single‐Species Tests: Lessons for the Experimental Design and the Reproducibility of a Multitrophic Laboratory Microcosm

Author:
Riedl, Verena; Agatz, Annika; Benstead, Rachel; Ashauer, Roman
Source:
Environmental toxicology and chemistry 2019 v.38 no.5 pp. 1120-1131
ISSN:
0730-7268
Subject:
microbial contamination,   etc   ; Ceriodaphnia dubia; Hydra; Selenastrum capricornutum; aeration; algae; experimental design; light intensity; risk assessment;     Show all 9 Subjects
Abstract:
... The need for an integrated risk assessment at an ecologically relevant scale (e.g., at the population/community levels) has been acknowledged. Multispecies systems with increased ecological complexity, however, are difficult if not impossible to reproduce. The laboratory‐scale microcosm TriCosm (Pseudokirchneriella subcapitata, Ceriodaphnia dubia, Hydra viridissima) of intermediate complexity was ...
DOI:
10.1002/etc.4393

7. In situ microscopy as online tool for detecting microbial contaminations in cell culture

Author:
Gustavsson, R.; Mandenius, C.F.; Löfgren, S.; Scheper, T.; Lindner, P.
Source:
Journal of biotechnology 2019 v.296 pp. 53-60
ISSN:
0168-1656
Subject:
microbial contamination,   etc   ; Candida utilis; Scheffersomyces stipitis; cell culture; computer software; hybridomas; mammals; microscopy;     Show all 8 Subjects
Abstract:
... Microbial contamination in mammalian cell cultures causing rejected batches is costly and highly unwanted. Most methods for detecting a contamination are time-consuming and require extensive off-line sampling. To circumvent these efforts and provide a more convenient alternative, we used an online in situ microscope to estimate the cell diameter of the cellular species in the culture to distinguis ...
DOI:
10.1016/j.jbiotec.2019.03.011

8. Acidic cultivation of Haematococcus pluvialis for improved astaxanthin production in the presence of a lethal fungus

Author:
Hwang, Sung-Won; Choi, Hong Il; Sim, Sang Jun
Source:
Bioresource technology 2019 v.278 pp. 138-144
ISSN:
0960-8524
Subject:
microbial contamination,   etc   ; Haematococcus pluvialis; astaxanthin; control methods; denaturation; irradiation; nitrogen; pH; poisonous fungi; surface proteins;     Show all 10 Subjects
Abstract:
... An acidic cultivation strategy was developed to prevent contamination of a lethal fungus Paraphysoderma sedebokerensis in Haematococcus pluvialis culture for astaxanthin production. Instead of generally used neutral pH, an acidic condition (pH 4) was applied to the cultivation, resulting in a significant inhibition of the fungal contamination. This could be ascribed to the acidity-associated denat ...
DOI:
10.1016/j.biortech.2019.01.080

9. Perspectives and Trends in the Application of Photodynamic Inactivation for Microbiological Food Safety

Author:
Ghate, Vinayak S.; Zhou, Weibiao; Yuk, Hyun‐Gyun
Source:
Comprehensive reviews in food science and food safety 2019 v.18 no.2 pp. 402-424
ISSN:
1541-4337
Subject:
microbial contamination,   etc   ; bacteria; cytotoxicity; food safety; fresh produce; fruits; fungi; photosensitizing agents; poultry; seafoods; viruses; wavelengths;     Show all 12 Subjects
Abstract:
... Photodynamic inactivation is a phenomenon that has the potential to cause microbial inactivation using visible light. It works on the principle that photosensitizers within the microbial cell can be activated using specific wavelengths to trigger a series of cytotoxic reactions. In the last few years, efforts to apply this intervention technology for food safety have been on the rise. This review ...
DOI:
10.1111/1541-4337.12418

10. State-of-the-art in terahertz sensing for food and water security – A comprehensive review

Author:
Ren, Aifeng; Zahid, Adnan; Fan, Dou; Yang, Xiaodong; Imran, Muhammad Ali; Alomainy, Akram; Abbasi, Qammer H.
Source:
Trends in food science & technology 2019 v.85 pp. 241-251
ISSN:
0924-2244
Subject:
microbial contamination,   etc   ; food contamination; food inspection; health services; monitoring; water pollution; water security;     Show all 7 Subjects
Abstract:
... Recently, there has been a dramatic change in the field of terahertz (THz) technology. The recent advancements in the THz radiation sector considering generation, manipulation and detection have brought revolution in this field, which enable the integration of THz sensing systems into real-world. The THz technology presents detection techniques and various issues, while providing significant oppor ...
DOI:
10.1016/j.tifs.2019.01.019

11. Agricultural water pollution: key knowledge gaps and research needs

Author:
Evans, Alexandra EV; Mateo-Sagasta, Javier; Qadir, Manzoor; Boelee, Eline; Ippolito, Alessio
Source:
Current opinion in environmental sustainability 2019 v.36 pp. 20-27
ISSN:
1877-3435
Subject:
microbial contamination,   etc   ; economic costs; models; source attribution; water pollution; water quality;     Show all 6 Subjects
Abstract:
... While water pollution is starting to receive the attention it deserves, the contribution of agriculture requires greater consideration as current agricultural practices have an unprecedented impact on water quality. This paper reviews knowledge in selected areas of agricultural water pollution (AWP) and identifies future research needs. These include source attribution, emerging contaminants, cost ...
DOI:
10.1016/j.cosust.2018.10.003

12. Molecular Enrichment for Qualitative Molecular Pathogen Detection in Food

Author:
Mester, Patrick; Wagner, Martin; Rossmanith, Peter
Source:
Food analytical methods 2018 v.11 no.5 pp. 1251-1256
ISSN:
1936-9751
Subject:
microbial contamination,   etc   ; analytical methods; food production; microbial detection;     Show all 4 Subjects
Abstract:
... Reliable detection of low levels of pathogenic microbial contaminants is one of the most important prerequisites to guarantee safe food production. In this work, the use of molecular enrichment (ME) subsequent to the sample preparation method Matrix-Lysis was evaluated solely for qualitative molecular pathogen detection from complex matrices. It could be successfully shown that the LOD of an all-m ...
DOI:
10.1007/s12161-017-1103-z

13. Food integrity in China: Insights from the national food spot check data in 2016

Author:
Liu, Aiping; Shen, Li; Tan, Yuxi; Zeng, Zhenghai; Liu, Yuntao; Li, Cheng
Source:
Food control 2018 v.84 pp. 403-407
ISSN:
0956-7135
Subject:
microbial contamination,   etc   ; food additives; food industry; food quality; markets; China;     Show all 6 Subjects
Abstract:
... Food integrity is a major global public issue. China's food industry has demonstrated a sustained growth trend since the 1980s; however, the years between 1980 and 2012 witnessed a worrisome food integrity situation. Thankfully, in recent years, the situation is improving after the Chinese government's implementation of food safety regulations. In order to understand the current status of food int ...
DOI:
10.1016/j.foodcont.2017.08.033

14. Conical twin-screw extrusion is an effective inactivation process for Salmonella in low-moisture foods at temperatures above 65 °C

Author:
Verma, Tushar; Subbiah, Jeyamkondan
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2019 v.114 pp. 108369
ISSN:
0023-6438
Subject:
microbial contamination,   etc   ; Salmonella; detection limit; equations; extrusion; food safety; lipid content; low moisture foods; oat flour; temperature; water content;     Show all 11 Subjects
Abstract:
... Single-screw extrusion is an effective tool in reducing microbial contamination, however, limited data exists on the efficacy of twin-screw extrusion for microbial inactivation. The purpose of this study was to evaluate the effect of fat (5–15%), moisture content (14–26%), temperature (55–85 °C), and screw speed (75–225 rpm) on Salmonella inactivation during the twin-screw extrusion of oat flour. ...
DOI:
10.1016/j.lwt.2019.108369

15. Poly(piperizinamide) with copper ion composite membranes: Application for mitigation of Hexaconazole from water and combat microbial contamination

Author:
Mehta, Romil; Brahmbhatt, H.; Bhojani, Gopal; Mukherjee, M.; Bhattacharya, A.
Source:
Journal of hazardous materials 2019 v.376 pp. 102-111
ISSN:
0304-3894
Subject:
microbial contamination,   etc   ; Bacillus subtilis; antibacterial properties; asymmetric membranes; copper; disaccharides; filtration; hexaconazole; hydrophobicity; polymerization; roughness; salts; tap water;     Show all 13 Subjects
Abstract:
... Thin film Poly(piperazine-amide) composite membranes using sequential interfacial polymerization with tuning by Cu2+ have brought significant findings in it. The hydrophobicity is relatively enhanced for the copper containing membranes. The membrane in which copper solution is applied prior to piperizine (Memb-III) exhibits higher hydrophobicity where as membrane (Memb-II) in which copper solution ...
DOI:
10.1016/j.jhazmat.2019.05.026

16. Quorum sensing inhibition as a promising method to control biofilm growth in metalworking fluids

Author:
Özcan, Safiye Selen; Dieser, Markus; Parker, Albert E.; Balasubramanian, Narayanaganesh; Foreman, Christine M.
Source:
Journal of industrial microbiology & biotechnology 2019 v.46 no.8 pp. 1103-1111
ISSN:
1367-5435
Subject:
microbial contamination,   etc   ; Pseudomonas aeruginosa; alpha-amylase; biofilm; cleaning; homoserine; lactones; lubricants; microbial communities; models; patulin; plankton; polymers; quinoline; quorum sensing;     Show all 15 Subjects
Abstract:
... Microbial contamination in metalworking systems is a critical problem. This study determined the microbial communities in metalworking fluids (MWFs) from two machining shops and investigated the effect of quorum sensing inhibition (QSI) on biofilm growth. In both operations, biofilm-associated and planktonic microbial communities were dominated by Pseudomonadales (60.2–99.7%). Rapid recolonization ...
DOI:
10.1007/s10295-019-02181-7

17. Surfactants as fungal parasite control agents in oleaginous microalga, Graesiella sp. WBG-1, mass culture

Author:
Ding, Yi; Wen, Xiaobin; Peng, Xinan; Zhang, Aoqi; Wang, Zhongjie; Geng, Yahong; Li, Yeguang
Source:
Algal research 2019 v.41 pp. 101539
ISSN:
2211-9264
Subject:
microbial contamination,   etc   ; biodiesel; biomass; coconuts; economic sustainability; fatty acid composition; fuel production; fungi; microalgae; parasites; ponds; sodium dodecylbenzenesulfonate; surfactants;     Show all 13 Subjects
Abstract:
... Microbial contamination is a devastating threat to the success of oleaginous microalgae mass cultivation. Fungal parasites are likely to infect cultivated microalgae, greatly reducing algal biomass to extremely low levels. In the present study, four surfactants were used to control fungal parasites in the culture of the oleaginous microalga, Graesiella sp. WBG-1, for the first time. In lab-scale e ...
DOI:
10.1016/j.algal.2019.101539

18. Deep tubewell microbial water quality and access in arsenic mitigation programs in rural Bangladesh

Author:
Goel, V.; Islam, M.S.; Yunus, M.; Ali, M.T.; Khan, A.F.; Alam, N.; Faruque, A.S.G.; Bell, G.; Sobsey, M.; Emch, M.
Source:
The Science of the total environment 2019 v.659 pp. 1577-1584
ISSN:
0048-9697
Subject:
microbial contamination,   etc   ; arsenic; bins (containers); cross-sectional studies; drinking water; households; microbiological quality; ownership; risk; storage time; water quality; Bangladesh;     Show all 12 Subjects
Abstract:
... The objective of this paper is to determine whether deep tubewells installed through arsenic mitigation efforts in rural Bangladesh provide better drinking water microbial quality compared to shallow tubewells. We conducted a stratified random cross-sectional survey of 484 households to assess microbial contamination of deep tubewell water at source and at point of use (POU) compared to shallow tu ...
DOI:
10.1016/j.scitotenv.2018.12.341

19. Head-space gas chromatography coupled to mass spectrometry for the assessment of the contamination of mayonnaise by yeasts

Author:
Arroyo-Manzanares, N.; Markiv, B.; Hernández, J.D.; López-García, I.; Guillén, I.; Vizcaíno, P.; Hernández-Córdoba, M.; Viñas, P.
Source:
Food chemistry 2019
ISSN:
0308-8146
Subject:
microbial contamination,   etc   ; Candida; Zygosaccharomyces bailii; chemometrics; food preservation; food spoilage; gas chromatography-mass spectrometry; headspace analysis; mayonnaise; models; yeasts;     Show all 11 Subjects
Abstract:
... Head-space (HS) gas chromatography (GC) coupled to mass spectrometry (MS) is proposed for the assessment of the contamination of mayonnaise as an alternative to plate counting, which is the technique commonly used for evaluating microbial contamination. More specifically, this method was applied in the detection of Candida metapsilosis and Zygosaccharomyces bailii, both of great importance in term ...
DOI:
10.1016/j.foodchem.2019.03.083

20. Incidence of spoilage fungi in the air of bakeries with different hygienic status

Author:
Valle Garcia, Marcelo; Sonnenstrahl Bregão, Andressa; Parussolo, Gilson; Olivier Bernardi, Angélica; Stefanello, Andrieli; Venturini Copetti, Marina
Source:
International journal of food microbiology 2019 v.290 pp. 254-261
ISSN:
0168-1605
Subject:
microbial contamination,   etc   ; air; airborne microorganisms; baked goods; cooling; fungi; good manufacturing practices; laws and regulations; microbiological quality; sampling; spoilage fungi;     Show all 11 Subjects
Abstract:
... This study aimed to determine the level of adequacy of bakeries to the requirements of good manufacturing practices (GMP) and the fungal contamination of the environmental air of these places, verifying the existence of a correlation between both. The checklist present in Ordinance No 78/2009 of good practices based on the current legislation was used to evaluate GMP adequacy and the contamination ...
DOI:
10.1016/j.ijfoodmicro.2018.10.022