Read by QxMD icon Read

Microorganism quality

Jialiang Xu, Huijun Wu, Zhiwei Wang, Fuping Zheng, Xin Lu, Zhenpeng Li, Qing Ren
Chinese rice wine (CRW) is the oldest kind of wine in China and is mainly fermented by wheat Qu and yeast with rice, millet, etc. This gives CRW a unique quality, but the flavor components are complex. Its formation is related to microorganisms, but the link between CRW and microorganisms is poorly understood. Here, we used two kinds of sorghum (JZ22 and JB3, of which JZ22 has a higher tannin content) as the raw materials to brew and determined the structural and functional dynamics of the microbiota by metagenomics and flavor analyses...
March 15, 2018: Scientific Reports
Heejung Kim, Dugin Kaown, Bernhard Mayer, Jin-Yong Lee, Kang-Kun Lee
Hyporheic zones are considered hot spots for numerically vast and phylogenetically diverse microbial communities. However, biogeochemical effects of hyporheic zones have rarely been investigated in detail because of the difficulty in accurately measuring denitrification in these zones. To date, little is known about the hydroecology of hyporheic zones. The effect of changes in hydraulic conditions on the community variations of indigenous microorganisms and water quality was examined based on the depth of the hyporheic zone...
March 12, 2018: Science of the Total Environment
Ina Willemsen, Jan Kluytmans
Background: Infection control needs user-friendly standardized instruments to measure the compliance to guidelines and to implement targeted improvement actions. This abstract describes a tool to measure the quality of infection control and antimicrobial use, the Infection Risk Scan (IRIS). It has been applied in a hospital, several nursing homes and a rehabilitation clinic in the Netherlands. Method: The IRIS consists of a set of objective reproducible measurements, combining patient- and healthcare related variables, such as: hand hygiene compliance, environmental contamination using ATP measurements, prevalence of resistant microorganisms by active screening, availability of infection control preconditions, personal hygiene of healthcare workers, appropriate use of indwelling medical devices and appropriate use of antimicrobials...
2018: Antimicrobial Resistance and Infection Control
Daeho Kim, Sanghyun Hong, Hongjun Na, Jihwan Chun, Robin B Guevarra, You-Tae Kim, Sangryeol Ryu, Hyeun Bum Kim, Ju-Hoon Lee
Bellflower root ( Platycodon grandiflorum ), which belongs to the Campanulaceae family, is a perennial grass that grows naturally in Korea, northeastern China, and Japan. Bellflower is widely consumed as both food and medicine due to its high nutritional value and potential therapeutic effects. Since foodborne disease outbreaks often come from vegetables, understanding the public health risk of microorganisms on fresh vegetables is pivotal to predict and prevent foodborne disease outbreaks.We investigated the microbial communities on the bellflower root (n=10)...
March 15, 2018: Journal of Microbiology and Biotechnology
Mahmoud Alagawany, Mohamed E Abd El-Hack, Mayada R Farag, Swati Sachan, Kumaragurubaran Karthik, Kuldeep Dhama
Antibiotics as growth promoters in poultry have been used for long time for improving feed efficiency and performance. Due to their various side-effects such as antibiotic resistance, destruction of beneficial bacteria in the gut, and dysbiosis, it is required to think about some alternatives. Probiotics are one of the options in this regard for improving poultry production. Probiotics are defined as "live microorganisms that, when administered in adequate amounts, confer a health benefit on the host." They are available in various forms for use as feed additives...
March 12, 2018: Environmental Science and Pollution Research International
Alex J Sposito, Aditya Kurdekar, Jiangqin Zhao, Indira Hewlett
Rapid detection and identification of pathogenic microorganisms is fundamental to minimizing the spread of infectious disease, and informing clinicians on patient treatment strategies. This need has led to the development of enhanced biosensors that utilize state of the art nanomaterials and nanotechnology, and represent the next generation of diagnostics. A primer on nanoscale biorecognition elements such as, nucleic acids, antibodies, and their synthetic analogs (molecular imprinted polymers), will be presented first...
March 12, 2018: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
Antonio Alfonzo, Raimondo Gaglio, Alessandro Miceli, Nicola Francesca, Rosalia Di Gerlando, Giancarlo Moschetti, Luca Settanni
Microbiological, chemical and physical parameters of minimally processed red chicory (Cichorium intybus L.) subjected to two different transformation processes were investigated. A classic ready-to-eat (RTE) process (P1) and a production without cutting (P2) were monitored during refrigerated (4 °C) storage (15 d). Total mesophilic microorganisms, total psychrotrophic microorganisms and pseudomonads were detected at the highest cell densities in all samples. Presumptive Pseudomonas population dominated the cultivable microbial community of RTE red chicory and were characterized genetically...
August 2018: Food Microbiology
Wiesława Grzesińska, Marzena Tomaszewska, Beata Bilska, Joanna Trafiałek, Michał Dziadek
Background: Providing safe food products to the consumer depends on the material and technology used and adherence to hygienic practices, throughout the production process. The degree of microbial contamination of a surface is an important indicator of equipment cleanliness and effectiveness of cleaning and disinfection. Used material, construction solutions and quality of the applied devices also have an effect on hygienic status. Objective: The objective of the present study was to evaluate the influence of the design and construction material of selected food storage racks, available on the Polish market, on their hygienic status...
2018: Roczniki Państwowego Zakładu Higieny
Santo Fabio Corsino, Daniele Di Trapani, Michele Torregrossa, Gaspare Viviani
In the present paper, the feasibility of citrus wastewater treatment with aerobic granular sludge sequencing batch reactors (AGSBR) was investigated. Two AGSBRs (named R1 and R2, respectively) were operated for 90 days under different organic loading rates (OLR) and pH in two experimental periods. The OLR ranged approximately between 3.0 kg TCOD m-3 d-1 and 7 kg TCOD m-3 d-1 during Period I, whereas between 7 kg TCOD m-3 d-1 and 15 kg TCOD m-3 d-1 during Period II. pH was maintained at 7.0 and 5.5 in R1 and R2, respectively...
March 5, 2018: Journal of Environmental Management
Eleuza R Machado, Iriani R Maldonade, Roberta F R Riquette, Vinícios S Mendes, Rodrigo Gurgel-Gonçalves, Veronica C Ginani
The consumption of raw vegetables is related to health benefits. However, these foods might be source of foodborne diseases. The objective of the present study was to perform a microbiological and parasitological evaluation of the leafy vegetables commercially sold in five regions of Brazil at public wholesale markets. The 12 types of leafy vegetables (144 samples) were curly lettuce, looseleaf lettuce, red lettuce, chives, coriander, kale, basil, arugula, parsley, iceberg lettuce, chicory, and bean sprouts...
April 2018: Journal of Food Protection
Youqiang Xu, Yuefeng Jiang, Xiuting Li, Baoguo Sun, Chao Teng, Ran Yang, Ke Xiong, Guangsen Fan, Wenhua Wang
Bacillus subtilis is an important microorganism for brewing of Chinese Baijiu, which contributes to the formation of flavour chemicals including acetoin and its derivative ligustrazine. The first stage of Baijiu brewing process is under the micro-oxygen condition; however, there are few studies about B. subtilis metabolism under this condition. Effects of various factors on acetoin and ligustrazine metabolism were investigated under this condition including key genes and fermentation conditions. Mutation of bdhA (encoding acetoin reductase) or overexpression of glcU (encoding glucose uptake protein) increased acetoin concentration...
March 7, 2018: Journal of Agricultural and Food Chemistry
Suelen Goettems Kuntzler, Ana Claudia Araujo de Almeida, Jorge Alberto Vieira Costa, Michele Greque de Morais
Polymer nanofibers produced by electrospinning are promising for use in food packaging because of their nanometric diameter, which provides a barrier to external conditions above the possible incorporation of the active compounds. The microalga Spirulina sp. LEB 18 synthesizes bioproducts, such as polyhydroxybutyrate (PHB), which is biodegradable and has similar mechanical and thermal properties to polymers of petrochemical origin. Moreover, phenolic compounds of microalgae have antibacterial, antifungal, and antioxidant activities, which is a differential for the development of packaging...
March 2, 2018: International Journal of Biological Macromolecules
Alessandro Presentato, Elena Piacenza, Ali Darbandi, Max Anikovskiy, Martina Cappelletti, Davide Zannoni, Raymond J Turner
Tellurite (TeO3 2- ) is a hazardous and toxic oxyanion for living organisms. However, several microorganisms can bioconvert TeO3 2- into the less toxic form of elemental tellurium (Te0 ). Here, Rhodococcus aetherivorans BCP1 resting (non-growing) cells showed the proficiency to produce tellurium-based nanoparticles (NPs) and nanorods (NRs) through the bioconversion of TeO3 2- , depending on the oxyanion initial concentration and time of cellular incubation. Te-nanostructures initially appeared in the cytoplasm of BCP1 cells as spherical NPs, which, as the exposure time increased, were converted into NRs...
March 2, 2018: Scientific Reports
Jean O'Dwyer, Paul D Hynds, Kenneth A Byrne, Michael P Ryan, Catherine C Adley
Private groundwater sources in the Republic of Ireland provide drinking water to an estimated 750,000 people or 16% of the national population. Consumers of untreated groundwater are at increased risk of infection from pathogenic microorganisms. However, given the volume of private wells in operation, remediation or even quantification of public risk is both costly and time consuming. In this study, a hierarchical logistic regression model was developed to 'predict' contamination with E. coli based on the results of groundwater quality analyses of private wells (n = 132) during the period of September 2011 to November 2012...
February 27, 2018: Environmental Pollution
Haixia Zhang, Xuan Liu, Ting Chen, Yazhen Ji, Kun Shi, Lin Wang, Xiaodong Zheng, Jin Kong
Synthetic melatonin ( N -acetyl-5-methoxytryptamine, MT) is popular in the US and Asian markets as a health supplement. Here, we identified a naturally occurring melatonin source in apple juice. Melatonin was present in all 18 apple cultivars tested. The highest melatonin level of the edible part of apple was detected in the apple peel. The melatonin content in 'Fuji' apple juice is comparable to the level of its flesh. Melatonin was consumed during the process of juicing due to its interaction with the oxidants...
February 27, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
L Angiolillo, A Conte, M A Del Nobile
In this work a bio-preservation technique was applied to sea bass fillets in order to preserve their quality. The preservation consisted in the application of two kinds of active coatings on the product surface differing in the fermentation time of alginate solution by L. reuteri plus glycerol (24 and 48 h). This technological strategy was chosen because it has been demonstrated that L. reuteri produces the reuterin as an intermediate metabolite during the anaerobic fermentation of glycerol. To assess the antimicrobial effects of sodium alginate with L...
January 10, 2018: International Journal of Food Microbiology
Dalila Y Martínez, Kristien Verdonck, Paul M Kaye, Vanessa Adaui, Katja Polman, Alejandro Llanos-Cuentas, Jean-Claude Dujardin, Marleen Boelaert
BACKGROUND: Tegumentary leishmaniasis (TL) is a disease of skin and/or mucosal tissues caused by Leishmania parasites. TL patients may concurrently carry other pathogens, which may influence the clinical outcome of TL. METHODOLOGY AND PRINCIPAL FINDINGS: This review focuses on the frequency of TL coinfections in human populations, interactions between Leishmania and other pathogens in animal models and human subjects, and implications of TL coinfections for clinical practice...
March 2018: PLoS Neglected Tropical Diseases
Silvia Forni, Giulio Toccafondi, Bruno Viaggi, Maddalena Grazzini, Sara D'Arienzo, Fabrizio Gemmi, Andrea Vannucci, Giorgio Tulli
Antimicrobial resistance is a global threat caused by the rapid spread of multiresistant microorganisms. Antimicrobial stewardship (AS) is a coordinated intervention designed to improve the appropriate use of antimicrobials by promoting the selection of the optimal drug regimen, dose, duration of therapy and route of administration. AS programs have proved effective in reducing antimicrobial resistance, inappropriate antimicrobial use and in improving patient outcomes. Recently developed rapid diagnostic technologies in microbiology (RDTM) allows a faster and etiological diagnosis of infection and a reduction in the use of unnecessary empirical therapies...
February 2018: Recenti Progressi in Medicina
Zaixing Huang, Fangjing Liu, Michael A Urynowicz, Franco Basile, Hongguang Guo, Liwei Chen, Paul H Fallgren, Song Jin
Coalbed methane (CBM) is an important unconventional energy source and accounts for a substantial portion of the overall natural gas production in the USA. The extraction of CBM generates significant amounts of produced water, where the withdrawal of groundwater may disturb the subsurface environment and aquifers. The release of toxic recalcitrant compounds from the coal seam is of great concern for those who use groundwater for irrigation and potable water sources. Experiments were conducted that determined a small fraction of coal carbon can be extracted and solubilized in water during the CBM formation and production...
March 1, 2018: Environmental Geochemistry and Health
Greg S Bezanson, Timothy C Ells, Lihua Fan, Charles F Forney, Denyse I LeBlanc
Recent bacterial illnesses and outbreaks associated with the consumption of fresh and fresh-cut fruit and vegetables emphasize the need to supply produce that is microbiologically safe while retaining its quality and nutrient value. We assessed the capacity of aerated steam to reduce initial levels and control the posttreatment proliferation of a 4-strain mixture of Listeria innocua, a surrogate for L. monocytogenes, and microflora native to the rind of whole cantaloupes. Studies were conducted at the pilot-scale level by passing deliberately contaminated melons through a prototype stainless-steel, continuous-feed heating device...
February 28, 2018: Journal of Food Science
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"