journal
MENU ▼
Read by QxMD icon Read
search

Advances in Applied Microbiology

journal
https://www.readbyqxmd.com/read/28732554/microbial-ecology-and-process-technology-of-sourdough-fermentation
#1
Luc De Vuyst, Simon Van Kerrebroeck, Frédéric Leroy
From a microbiological perspective, sourdough is to be considered as a specific and stressful ecosystem, harboring yeasts and lactic acid bacteria (LAB), that is used for the production of baked goods. With respect to the metabolic impact of the sourdough microbiota, acidification (LAB), flavor formation (LAB and yeasts), and leavening (yeasts and heterofermentative LAB species) are most noticeable. Three distinct types of sourdough fermentation processes can be discerned based on the inocula applied, namely backslopped ones (type 1), those initiated with starter cultures (type 2), and those initiated with a starter culture followed by backslopping (type 3)...
2017: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/28732553/diversity-application-and-synthetic-biology-of-industrially-important-aspergillus-fungi
#2
Hee-Soo Park, Sang-Cheol Jun, Kap-Hoon Han, Seung-Beom Hong, Jae-Hyuk Yu
The filamentous fungal genus Aspergillus consists of over 340 officially recognized species. A handful of these Aspergillus fungi are predominantly used for food fermentation and large-scale production of enzymes, organic acids, and bioactive compounds. These industrially important Aspergilli primarily belong to the two major Aspergillus sections, Nigri and Flavi. Aspergillus oryzae (section Flavi) is the most commonly used mold for the fermentation of soybeans, rice, grains, and potatoes. Aspergillus niger (section Nigri) is used in the industrial production of various enzymes and organic acids, including 99% (1...
2017: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/28732552/current-interventions-for-controlling-pathogenic-escherichia-coli
#3
Nam Hee Kim, Tae Jin Cho, Min Suk Rhee
This review examined scientific reports and articles published from 2007 to 2016 regarding the major environmental sources of pathogenic Escherichia coli and the routes by which they enter the human gastrointestinal tract. The literature describes novel techniques used to combat pathogenic E. coli transmitted to humans from livestock and agricultural products, food-contact surfaces in processing environments, and food products themselves. Although prevention before contamination is always the best "intervention," many studies aim to identify novel chemical, physical, and biological techniques that inactivate or eliminate pathogenic E...
2017: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/28438269/stone-eating-fungi-mechanisms-in-bioweathering-and-the-potential-role-of-laccases-in-black-slate-degradation-with-the-basidiomycete-schizophyllum-commune
#4
Julia Kirtzel, Daniela Siegel, Katrin Krause, Erika Kothe
Many enzymes, such as laccases, are involved in the saprotrophic lifestyle of fungi and the effects of those may be linked to enhanced bioweathering on stone surfaces. To test this hypothesis, we studied the decomposition of kerogen-enriched lithologies, especially with black slate containing up to 20% of Corg. Indeed, a formation of ditches with attached hyphal material could be observed. To address enzymes involved, proteomics was performed and one group of enzymes, the multicopper oxidase family members of laccases, was specifically investigated...
2017: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/28438268/fungal-biorecovery-of-gold-from-e-waste
#5
Saskia Bindschedler, Thi Quynh Trang Vu Bouquet, Daniel Job, Edith Joseph, Pilar Junier
Waste electric and electronic devices (e-waste) represent a source of valuable raw materials of great interest, and in the case of metals, e-waste might become a prized alternative source. Regarding gold, natural ores are difficult to mine due to their refractory nature and the richest ores have almost all been exploited. Additionally, some gold mining areas are present in geopolitically unstable regions. Finally, the gold mining industry produces toxic compounds, such as cyanides. As a result, the gold present in e-waste represents a nonnegligible resource (urban mining)...
2017: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/28438267/the-arsenic-detoxification-system-in-corynebacteria-basis-and-application-for-bioremediation-and-redox-control
#6
Luis M Mateos, Almudena F Villadangos, Alfonso G de la Rubia, Alvaro Mourenza, Laura Marcos-Pascual, Michal Letek, Brandán Pedre, Joris Messens, Jose A Gil
Arsenic (As) is widespread in the environment and highly toxic. It has been released by volcanic and anthropogenic activities and causes serious health problems worldwide. To survive arsenic-rich environments, soil and saprophytic microorganisms have developed molecular detoxification mechanisms to survive arsenic-rich environments, mainly by the enzymatic conversion of inorganic arsenate (As(V)) to arsenite (As(III)) by arsenate reductases, which is then extruded by arsenite permeases. One of these Gram-positive bacteria, Corynebacterium glutamicum, the workhorse of biotechnological research, is also resistant to arsenic...
2017: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/28438266/physiological-role-of-two-component-signal-transduction-systems-in-food-associated-lactic-acid-bacteria
#7
Vicente Monedero, Ainhoa Revilla-Guarinos, Manuel Zúñiga
Two-component systems (TCSs) are widespread signal transduction pathways mainly found in bacteria where they play a major role in adaptation to changing environmental conditions. TCSs generally consist of sensor histidine kinases that autophosphorylate in response to a specific stimulus and subsequently transfer the phosphate group to their cognate response regulators thus modulating their activity, usually as transcriptional regulators. In this review we present the current knowledge on the physiological role of TCSs in species of the families Lactobacillaceae and Leuconostocaceae of the group of lactic acid bacteria (LAB)...
2017: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/28189156/microbial-phosphite-oxidation-and-its-potential-role-in-the-global-phosphorus-and-carbon-cycles
#8
REVIEW
I A Figueroa, J D Coates
Phosphite [Formula: see text] is a highly soluble, reduced phosphorus compound that is often overlooked in biogeochemical analyses. Although the oxidation of phosphite to phosphate is a highly exergonic process (E(o)(')=-650mV), phosphite is kinetically stable and can account for 10-30% of the total dissolved P in various environments. There is also evidence that phosphite was more prevalent under the reducing conditions of the Archean period and may have been involved in the development of early life. Its role as a phosphorus source for a variety of extant microorganisms has been known since the 1950s, and the pathways involved in assimilatory phosphite oxidation have been well characterized...
2017: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/28189155/contamination-control-for-scientific-drilling-operations
#9
REVIEW
J Kallmeyer
Drilling is an integral part of subsurface exploration. Because almost all drilling operations require the use of a drill fluid, contamination by infiltration of drill fluid into the recovered core material cannot be avoided. Because it is impossible to maintain sterile conditions during drilling the drill fluid will contain surface microbes and other contaminants. As contamination cannot be avoided, it has to be tracked to identify those parts of the drill core that were not infiltrated by the drill fluid...
2017: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/28189154/iron-and-fungal-physiology-a-review-of-biotechnological-opportunities
#10
REVIEW
L Comensoli, S Bindschedler, P Junier, E Joseph
Iron is an essential inorganic micronutrient. Because of its low toxicity only a few studies have dealt with the importance of iron in fungal physiology. Most of the studies published so far focus on iron sequestration by animal fungal pathogens, iron uptake by mycorrhizal fungi, or iron redox activities by fungal wood degraders. However, a general overview on the relationship between fungal physiology and iron is still lacking. In this review we present a summary of the types of physiological activities that participate in iron homeostasis in fungi and how these activities can be used for the development of original biotechnological applications in relationship to iron-containing matrices...
2017: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/28189153/antivirulence-properties-of-probiotics-in-combating-microbial-pathogenesis
#11
REVIEW
M Surendran Nair, M A Amalaradjou, K Venkitanarayanan
Probiotics are nonpathogenic microorganisms that confer a health benefit on the host when administered in adequate amounts. Ample evidence is documented to support the potential application of probiotics for the prevention and treatment of infections. Health benefits of probiotics include prevention of diarrhea, including antibiotic-associated diarrhea and traveler's diarrhea, atopic eczema, dental carries, colorectal cancers, and treatment of inflammatory bowel disease. The cumulative body of scientific evidence that demonstrates the beneficial effects of probiotics on health and disease prevention has made probiotics increasingly important as a part of human nutrition and led to a surge in the demand for probiotics in clinical applications and as functional foods...
2017: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/27926432/pathogen-and-particle-associations-in-wastewater-significance-and-implications-for-treatment-and-disinfection-processes
#12
REVIEW
C Chahal, B van den Akker, F Young, C Franco, J Blackbeard, P Monis
Disinfection guidelines exist for pathogen inactivation in potable water and recycled water, but wastewater with high numbers of particles can be more difficult to disinfect, making compliance with the guidelines problematic. Disinfection guidelines specify that drinking water with turbidity ≥1 Nephelometric Turbidity Units (NTU) is not suitable for disinfection and therefore not fit for purpose. Treated wastewater typically has higher concentrations of particles (1-10NTU for secondary treated effluent). Two processes widely used for disinfecting wastewater are chlorination and ultraviolet radiation...
2016: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/27926431/the-oral-microbiome-in-health-and-its-implication-in-oral-and-systemic-diseases
#13
REVIEW
B Sampaio-Maia, I M Caldas, M L Pereira, D Pérez-Mongiovi, R Araujo
The oral microbiome can alter the balance between health and disease, locally and systemically. Within the oral cavity, bacteria, archaea, fungi, protozoa, and viruses may all be found, each having a particular role, but strongly interacting with each other and with the host, in sickness or in health. A description on how colonization occurs and how the oral microbiome dynamically evolves throughout the host's life is given. In this chapter the authors also address oral and nonoral conditions in which oral microorganisms may play a role in the etiology and progression, presenting the up-to-date knowledge on oral dysbiosis as well as the known underlying pathophysiologic mechanisms involving oral microorganisms in each condition...
2016: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/27926430/insights-in-waste-management-bioprocesses-using-genomic-tools
#14
REVIEW
H J Purohit, A Kapley, A Khardenavis, A Qureshi, N A Dafale
Microbial capacities drive waste stabilization and resource recovery in environmental friendly processes. Depending on the composition of waste, a stress-mediated selection process ensures a scenario that generates a specific enrichment of microbial community. These communities dynamically change over a period of time while keeping the performance through the required utilization capacities. Depending on the environmental conditions, these communities select the appropriate partners so as to maintain the desired functional capacities...
2016: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/27926429/biologically-produced-methane-as-a-renewable-energy-source
#15
REVIEW
D E Holmes, J A Smith
Methanogens are a unique group of strictly anaerobic archaea that are more metabolically diverse than previously thought. Traditionally, it was thought that methanogens could only generate methane by coupling the oxidation of products formed by fermentative bacteria with the reduction of CO2. However, it has recently been observed that many methanogens can also use electrons extruded from metal-respiring bacteria, biocathodes, or insoluble electron shuttles as energy sources. Methanogens are found in both human-made and natural environments and are responsible for the production of ∼71% of the global atmospheric methane...
2016: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/27565581/the-role-of-the-gut-microbiome-on-chronic-kidney-disease
#16
REVIEW
B Sampaio-Maia, L Simões-Silva, M Pestana, R Araujo, I J Soares-Silva
Chronic kidney disease (CKD) is estimated to affect nearly 500 million people worldwide and cardiovascular (CV) disease is a major cause of death in this population. However, therapeutic interventions targeting traditional CV risks are not effective at lowering the incidence of CV events or at delaying the progression of the disease in CKD patients. In recent years, disturbances of normal gut microbiome were recognized in the pathogenesis of diverse chronic diseases. Gut dysbiosis is being unraveled in CKD and pointed as a nontraditional risk factor for CV risk and CKD progression...
2016: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/27565580/in-sickness-and-in-health-the-relationships-between-bacteria-and-bile-in-the-human-gut
#17
REVIEW
A J Hay, J Zhu
Colonization of a human host with a commensal microbiota has a complex interaction in which bacterial communities provide numerous health benefits to the host. An equilibrium between host and microbiota is kept in check with the help of biliary secretions by the host. Bile, composed primarily of bile salts, promotes digestion. It also provides a barrier between host and bacteria. After bile salts are synthesized in the liver, they are stored in the gallbladder to be released after food intake. The set of host-secreted bile salts is modified by the resident bacteria...
2016: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/27565579/staphylococcus-aureus-aggregation-and-coagulation-mechanisms-and-their-function-in-host-pathogen-interactions
#18
REVIEW
H A Crosby, J Kwiecinski, A R Horswill
The human commensal bacterium Staphylococcus aureus can cause a wide range of infections ranging from skin and soft tissue infections to invasive diseases like septicemia, endocarditis, and pneumonia. Muticellular organization almost certainly contributes to S. aureus pathogenesis mechanisms. While there has been considerable focus on biofilm formation and its role in colonizing prosthetic joints and indwelling devices, less attention has been paid to nonsurface-attached group behavior like aggregation and clumping...
2016: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/27261784/the-impact-of-oxygen-on-bacterial-enteric-pathogens
#19
REVIEW
N Wallace, A Zani, E Abrams, Y Sun
Bacterial enteric pathogens are responsible for a tremendous amount of foodborne illnesses every year through the consumption of contaminated food products. During their transit from contaminated food sources to the host gastrointestinal tract, these pathogens are exposed and must adapt to fluctuating oxygen levels to successfully colonize the host and cause diseases. However, the majority of enteric infection research has been conducted under aerobic conditions. To raise awareness of the importance in understanding the impact of oxygen, or lack of oxygen, on enteric pathogenesis, we describe in this review the metabolic and physiological responses of nine bacterial enteric pathogens exposed to environments with different oxygen levels...
2016: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/27261783/analysis-of-low-biomass-microbial%C3%A2-communities-in-the%C3%A2-deep-biosphere
#20
REVIEW
Y Morono, F Inagaki
Over the past few decades, the subseafloor biosphere has been explored by scientific ocean drilling to depths of about 2.5km below the seafloor. Although organic-rich anaerobic sedimentary habitats in the ocean margins harbor large numbers of microbial cells, microbial populations in ultraoligotrophic aerobic sedimentary habitats in the open ocean gyres are several orders of magnitude less abundant. Despite advances in cultivation-independent molecular ecological techniques, exploring the low-biomass environment remains technologically challenging, especially in the deep subseafloor biosphere...
2016: Advances in Applied Microbiology
journal
journal
23264
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"