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1. The influence of agar brands and micronutrients in the growth optimization of Granulicella sp. (Acidobacteriota)

Author:
Costa, Ohana Y.A.; Kuramae, Eiko E.
Source:
Journal of microbiological methods 2021 v.181 pp. 106148
ISSN:
0167-7012
Subject:
microbial growth,   etc   ; agar; culture media;     Show all 3 Subjects
Abstract:
... Acidobacteriota are highly abundant in soils, however, few cultured representatives are available. The purity of the reagents can influence microbial growth in laboratory conditions and successful isolation. Here we investigated the impact of different agar brands in culture medium and advocate that agar origin should be carefully considered for Acidobacteriota strains growth and microbial isolati ...
DOI:
10.1016/j.mimet.2021.106148

2. A framework based on fundamental biochemical principles to engineer microbial community dynamics

Author:
González-Cabaleiro, Rebeca; Martinez-Rabert, Eloi; Argiz, Lucia; van Kessel, Maartje AHJ; Smith, Cindy J
Source:
Current opinion in biotechnology 2021 v.67 pp. 111-118
ISSN:
0958-1669
Subject:
microbial growth,   etc   ; biotechnology; energy metabolism; microbial communities;     Show all 4 Subjects
Abstract:
... Microbial communities are complex but there are basic principles we can apply to constrain the assumed stochasticity of their activity. By understanding the trade-offs behind the kinetic parameters that define microbial growth, we can explain how local interspecies dependencies arise and shape the emerging properties of a community. If we integrate these theoretical descriptions with experimental ...
DOI:
10.1016/j.copbio.2021.01.001

3. Biofilm growth on buoyant microplastics leads to changes in settling rates: Implications for microplastic retention in the Great Lakes

Author:
Semcesen, Patricia O.; Wells, Mathew G.
Source:
Marine pollution bulletin 2021 v.170 pp. 112573
ISSN:
0025-326X
Subject:
microbial growth,   etc   ; biofilm; freshwater; lakes; marine pollution; microplastics; polypropylenes;     Show all 7 Subjects
Abstract:
... Buoyant microplastic pollution disperses widely from sources via strong wind-driven water currents in lakes and oceans. This ability for dispersal depends critically upon the particle's density, which can change over time due to microbial growth (biofilm). This study quantifies biofilm-induced sinking rates of irregularly-shaped polypropylene granules (~125–2000 μm) via ex-situ experiments emulati ...
DOI:
10.1016/j.marpolbul.2021.112573

4. Bioremediation of polycyclic aromatic hydrocarbons in contaminated mangroves: Understanding the historical and key parameter profiles

Author:
de Almeida, Felipe Filgueiras; Freitas, Danúbia; Motteran, Fabrício; Fernandes, Bruna Soares; Gavazza, Sávia
Source:
Marine pollution bulletin 2021 v.169 pp. 112553
ISSN:
0025-326X
Subject:
microbial growth,   etc   ; bioremediation; environmental impact; marine pollution; oils; petroleum;     Show all 6 Subjects
Abstract:
... Sensitive biomes, such as coastal ecosystems, have become increasingly susceptible to environmental impacts caused by oil logistics and storing, which, although more efficient nowadays, still cause spills. Thus, bioremediation techniques attract attention owing to their low impact on the environment. Among petroleum-based compounds, polycyclic aromatic hydrocarbons (PAHs) are known for their poten ...
DOI:
10.1016/j.marpolbul.2021.112553

5. Robotics for enzyme technology: innovations and technological perspectives

Author:
Dixit, Mandeep; Panchal, Kusum; Pandey, Dharini; Labrou, Nikolaos E.; Shukla, Pratyoosh
Source:
Applied microbiology and biotechnology 2021 v.105 no.10 pp. 4089-4097
ISSN:
0175-7598
Subject:
microbial growth,   etc   ; biotechnology; drugs; enzymes; fuel production; robots;     Show all 6 Subjects
Abstract:
... The use of robotics in the life science sector has created a considerable and significant impact on a wide range of research areas, including enzyme technology due to their immense applications in enzyme and microbial engineering as an indispensable tool in high-throughput screening applications. Scientists are experiencing the advanced applications of various biological robots (nanobots), fabrica ...
DOI:
10.1007/s00253-021-11302-1

6. The fouling layer development on MD membrane for water treatments: An especial focus on the biofouling progress

Author:
Chen, Lin; Wang, Yuchen; Chen, Zaiyu; Cai, Zongting
Source:
Chemosphere 2021 v.264 pp. 128458
ISSN:
0045-6535
Subject:
microbial growth,   etc   ; Meiothermus; Tepidimonas; biofouling; distillation; lakes; pollution; polymers; rivers;     Show all 9 Subjects
Abstract:
... This study evaluated the fouling development of membrane distillation (MD) when treating different feed waters were taken from three local water bodies: Xuanwu Lake, Nan Lake and Qinhuai River. Trends of flux decline could be divided into three phases including a similar rapid decline in first phase, a slow decline in phase II, while significant difference was observed in the last phase. It could ...
DOI:
10.1016/j.chemosphere.2020.128458

7. Kinetic characterization of microalgal-bacterial systems: Contributions of microalgae and heterotrophic bacteria to the oxygen balance in wastewater treatment

Author:
Flores-Salgado, Gratia; Thalasso, Frédéric; Buitrón, Germán; Vital-Jácome, Miguel; Quijano, Guillermo
Source:
Biochemical engineering journal 2021 v.165 pp. 107819
ISSN:
1369-703X
Subject:
microbial growth,   etc   ; microalgae; oxygen; photosynthesis; stoichiometry; wastewater treatment;     Show all 6 Subjects
Abstract:
... Metabolic activities of microalgae and heterotrophic bacteria were characterized in terms of dissolved O₂ uptake and production rates under dark and light conditions, assessing the contribution of both microbial groups to the O₂ balance during wastewater treatment. Up to 13 kinetic and stoichiometric parameters were determined, allowing a quantitative description of the O₂ production and uptake dy ...
DOI:
10.1016/j.bej.2020.107819

8. Sweet-and-sour sauce of assai and unconventional food plants with functional properties: An innovation in fruit sauces

Author:
da Silva, Mauriane M.; Lemos, Tatiana de O.; Rodrigues, Maria do Carmo P.; de Araújo, Ana Maria S.; Gomes, Anida Maria M.; Pereira, Ana Lúcia F.; Abreu, Virginia Kelly G.; Araújo, Elder dos S.; Andrade, Daniel de S.
Source:
International journal of gastronomy and food science 2021 v.25 pp. 100372
ISSN:
1878-450X
Subject:
microbial growth,   etc   ; antioxidant activity; fruits; gastronomy; ketchup; pH; response surface methodology; titratable acidity;     Show all 8 Subjects
Abstract:
... The fruit sauces importance is increasing as a result of the impact of these ingredients that enhance the functional properties of foods. Thus, the study aimed to produce a sweet-and-sour sauce with assai and unconventional food plants (UFP), as a healthy alternative in promoting the consumption of fruits and vegetables. Thus, 14 sauce prototypes were produced. A first-order orthogonal central com ...
DOI:
10.1016/j.ijgfs.2021.100372

9. Research advances in the fabrication of biosafety and functional leather: A way-forward for effective management of COVID-19 outbreak

Author:
Renganath Rao, Ramesh; Sathish, Murali; Raghava Rao, Jonnalagadda
Source:
Journal of cleaner production 2021 v.310 pp. 127464
ISSN:
0959-6526
Subject:
microbial growth,   etc   ; COVID-19 infection; antiviral properties; biosafety; electronics; hydrophobicity; leather; leather industry; pandemic; photocatalysis; toxicity;     Show all 11 Subjects
Abstract:
... With the recent events following the pandemic COVID-19, global awareness about the use of biosafety materials has been in raise. Leather industry being a major commodity-driven sector, its role in addressing the issues concerning the safe use of leather products has become inevitable for the sustainability of the industry. A significant number of researches have been conducted to fabricate bio-saf ...
DOI:
10.1016/j.jclepro.2021.127464

10. Insights into the current evidence on the effects of essential oils toward beneficial microorganisms in foods with a special emphasis to lactic acid bacteria – A review

Author:
Leite de Souza, Evandro
Source:
Trends in food science & technology 2021 v.114 pp. 333-341
ISSN:
0924-2244
Subject:
microbial growth,   etc   ; anti-infective agents; fermentation; food science; lactic acid; meat; probiotics; spoilage;     Show all 8 Subjects
Abstract:
... The use of essential oils (EO) as natural antimicrobials to control spoilage and pathogenic microorganisms in foods has been research focus. However, few studies have investigated the impacts of EO on microorganisms acting as technological tools or capable of exerting beneficial properties on host health. Substances capable of impacting the physiological functions, metabolic capacities and growth/ ...
DOI:
10.1016/j.tifs.2021.06.011

11. Automated antimicrobial susceptibility testing of slow-growing Pseudomonas aeruginosa strains in the presence of tetrazolium salt WST-1

Author:
Datar, Rucha; Perrin, Guillaume; Chalansonnet, Valérie; Perry, Audrey; Perry, John D.; van Belkum, Alex; Orenga, Sylvain
Source:
Journal of microbiological methods 2021 v.186 pp. 106252
ISSN:
0167-7012
Subject:
microbial growth,   etc   ; Pseudomonas aeruginosa; absorbance; antibiotic resistance; automation; cystic fibrosis; menadione; tetrazolium; water solubility;     Show all 9 Subjects
Abstract:
... Slow growing, mucoid isolates of Pseudomonas aeruginosa require adaptation of the protocol used for automated antimicrobial susceptibility testing (AST). In the present study we used a water soluble tetrazolium salt WST-1 (4-[3-(4-iodophenyl)-2-(4-nitrophenyl)-2H-5-tetrazolio]-1,3-benzene disulfonate) in combination with menadione for possibly improving AST of slow growing and biofilm-forming P. a ...
DOI:
10.1016/j.mimet.2021.106252

12. Bioweathering of Zn–Pb-bearing rocks: Experimental exposure to water, microorganisms, and root exudates

Author:
Swęd, Maciej; Potysz, Anna; Duczmal-Czernikiewicz, Agata; Siepak, Marcin; Bartz, Wojciech
Source:
Applied geochemistry 2021 v.130 pp. 104966
ISSN:
0883-2927
Subject:
microbial growth,   etc   ; Acidithiobacillus thiooxidans; geochemistry; goethite; quartz; risk; smithsonite; soil; soil solution; Poland;     Show all 10 Subjects
Abstract:
... Zn–Pb-bearing rocks from mining sites in Olkusz, southern Poland may continue to represent a risk to the environment through the mobilization of metals. This study experimentally simulated the exposure of calamine-type rocks and goethite crusts to various weathering conditions and then compared the behavior of these mineralogically diverse samples. Study conditions included sample exposures to and ...
DOI:
10.1016/j.apgeochem.2021.104966

13. Inhibitory activity of Co-microencapsulation of cell free supernatant from Lactobacillus plantarum with propolis extracts towards fish spoilage bacteria

Author:
Kuley, Esmeray; Kuscu, Metanet Muhammet; Durmus, Mustafa; Ucar, Yilmaz
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2021 v.146 pp. 111433
ISSN:
0023-6438
Subject:
microbial growth,   etc   ; Lactobacillus plantarum; Proteus mirabilis; acetic acid; alcohols; antibacterial properties; fish; maltol; microencapsulation; propolis; spoilage;     Show all 11 Subjects
Abstract:
... Antibacterial properties of microencapsulated Lactobacillus plantarum cell-free supernatant (CFS) in combinations with aqueous or ethanolic propolis extract at doses of 1% against fish spoilage bacteria were investigated. Microencapsulated samples contained more than 17 compounds, of which furyl alcohol, acetic acid, maltol, and 2(5H) furanon were identified as common compounds. The effects of mic ...
DOI:
10.1016/j.lwt.2021.111433

14. Population dynamics of coliforms in a commercial Cheddar cheese production facility

Author:
Selover, Brandon; Johnson, Jared; Waite-Cusic, Joy G.
Source:
Journal of dairy science 2021 v.104 no.7 pp. 7480-7488
ISSN:
0022-0302
Subject:
microbial growth,   etc   ; Cheddar cheese; cheesemaking; coliform bacteria; heat treatment; milk; population dynamics; sanitation; whey;     Show all 9 Subjects
Abstract:
... The detection of coliforms in young cheese is a potential indication of undesirable microbial growth within the processing environment. The aim of this study was to investigate sources and conditions that lead to the intermittent detection of coliforms (1–3 log cfu/g) in young Cheddar cheese at a single commercial facility. Analysis of historical production data, in combination with iterative inve ...
DOI:
10.3168/jds.2020-19808

15. Ca and Mg Concentrations in Spices and Growth of Commonly Sporulated and Non-Sporulated Food-Borne Microorganisms According to Marketing Systems

Author:
García-Galdeano, José María; Villalón-Mir, Marina; Medina-Martínez, José; Fonseca-Moor-Davie, Sofía María; Zamora-Bustillos, Jessandra Gabriela; Vázquez-Foronda, Lydia María; Agil, Ahmad; Navarro-Alarcón, Miguel
Source:
Foods 2021 v.10 no.5
ISSN:
2304-8158
Subject:
microbial growth,   etc   ; Bacillus cereus; Clostridium perfringens; Listeria monocytogenes; basil; glass; microbial contamination; microbial culture; polyethylene terephthalates;     Show all 9 Subjects
Abstract:
... Ca and Mg levels were determined in five spices according to marketing system (in bulk or commercialized in glass or polyethylene terephthalate (PET) containers) and correlated with microbial growth of commonly sporulated (Clostridium perfringens and Bacillus cereus) and non-sporulated (Listeria monocytogenes, psychrophilic and mesophilic bacteria, and yeasts and molds) food-borne pathogens presen ...
DOI:
10.3390/foods10051122

16. Investigation of the Factors Affecting the Treatment Performance of a Stormwater Horizontal Subsurface Flow Constructed Wetland Treating Road and Parking Lot Runoff

Author:
Choi, Hyeseon; Geronimo, Franz Kevin F.; Jeon, Minsu; Kim, Lee-Hyung
Source:
Water 2021 v.13 no.9
ISSN:
2073-4441
Subject:
microbial growth,   etc   ; Acidobacteria; Actinobacteria; Proteobacteria; filtration; gravel; pollutants; sand; stormwater; subsurface flow; vegetation; wood;     Show all 12 Subjects
Abstract:
... This study assessed the factors affecting the growth and survival of microorganisms in a small horizontal subsurface flow constructed wetland (HSSF CW) treating stormwater runoff from highly impervious road and parking lot through long-term monitoring from 2010 until present. The HSSF CW facility consisted of sedimentation or pre-treatment zone, vegetation zone, and effluent zone, and employed fil ...
DOI:
10.3390/w13091242

17. High-throughput live imaging of microcolonies to measure heterogeneity in growth and gene expression

Author:
Sartori, Federica M. O.; Buzby, Cassandra; Plavskin, Yevgeniy; Siegal, Mark L.
Source:
Journal of visualized experiments 2021 no.170 pp. e62038
ISSN:
1940-087X
Subject:
microbial growth,   etc   ; Saccharomyces cerevisiae; computer software; fluorescence; gene expression; image analysis; pathogenicity; stress tolerance; yeasts;     Show all 9 Subjects
Abstract:
... Precise measurements of between- and within-strain heterogeneity in microbial growth rates are essential for understanding genetic and environmental inputs into stress tolerance, pathogenicity, and other key components of fitness. This manuscript describes a microscope-based assay that tracks approximately 105 Saccharomyces cerevisiae microcolonies per experiment. After automated time-lapse imagin ...
DOI:
10.3791/62038

18. A review of quorum sensing improving partial nitritation-anammox process: Functions, mechanisms and prospects

Author:
Zhao, Zhi-Cheng; Xie, Guo-Jun; Liu, Bing-Feng; Xing, De-Feng; Ding, Jie; Han, Hong-Jun; Ren, Nan-Qi
Source:
The Science of the total environment 2021 v.765 pp. 142703
ISSN:
0048-9697
Subject:
microbial growth,   etc   ; anaerobic ammonium oxidation; cell communication; energy efficiency; environment; lactones; metabolism; nitrogen; secretion;     Show all 9 Subjects
Abstract:
... Partial nitritation-anammox (PNA) is a promising and energy-efficient process for the sustainable nitrogen removal. However, its wide applications are still limited by the long start-up period and instability of long-term operation. Quorum sensing (QS), as a way of cell-to-cell communication generally regulating various microbial behaviors, has been increasingly investigated in PNA process, becaus ...
DOI:
10.1016/j.scitotenv.2020.142703

19. Effect of Humidity-Controlled Dehydration on Microbial Growth and Quality Characteristics of Fresh Wet Noodles

Author:
Xing, Jun-Jie; Jiang, Dong-Hui; Yang, Zhen; Guo, Xiao-Na; Zhu, Ke-Xue
Source:
Foods 2021 v.10 no.4
ISSN:
2304-8158
Subject:
microbial growth,   etc   ; microbial load; noodles; plate count; refrigeration; relative humidity; shelf life; stickiness; temperature; texture;     Show all 10 Subjects
Abstract:
... Humidity-controlled dehydration (HCD) was innovatively applied in this paper to control the growth of microorganisms in fresh wet noodles (FWN). Effects of HCD treatment with different temperatures (40, 60 or 80 °C), relative humidity (RH, 50%, 70% or 90%) and treatment time (5–32 min) on the total plate count (TPC), the shelf-life, and qualities of FWN were investigated. The results showed that H ...
DOI:
10.3390/foods10040844

20. A Review into the Effectiveness of Ozone Technology for Improving the Safety and Preserving the Quality of Fresh-Cut Fruits and Vegetables

Author:
Botondi, Rinaldo; Barone, Marco; Grasso, Claudia
Source:
Foods 2021 v.10 no.4
ISSN:
2304-8158
Subject:
microbial growth,   etc   ; cross contamination; food preparation; fresh-cut produce; ozonation; ozone; plant tissues; risk; shelf life;     Show all 9 Subjects
Abstract:
... In recent years, consumers have become increasingly aware of the nutritional benefits brought by the regular consumption of fresh fruits and vegetables, which reduces the risk of health problems and disease. High-quality raw materials are essential since minimally processed produce is highly perishable and susceptible to quality deterioration. The cutting, peeling, cleaning and packaging processes ...
DOI:
10.3390/foods10040748