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https://www.readbyqxmd.com/read/29136910/low-cost-approach-to-increase-the-analysis-throughput-of-bar-adsorptive-microextraction-ba%C3%A2%C2%B5e-combined-with-environmentally-friendly-renewable-sorbent-phase-of-recycled-diatomaceous-earth
#1
Gabriela Mafra, Anderson Luiz Oenning, Adriana Neves Dias, Josias Merib, Dilma Budziak, Cristian Berto da Silveira, Eduardo Carasek
In this study, a novel apparatus for bar adsorptive microextraction (BAµE) using a voltage regulator was proposed as an alternative tool to improve the analysis throughput. In addition, recycled diatomaceous earth obtained as a brewery residue was employed as a biosorbent coating for the determination of methyl paraben, ethyl paraben, benzophenone and triclocarban in water samples by high-performance liquid chromatography-diode array detection (HPLC-DAD). The use of the extraction devices, comprised of floating adsorptive bars of 7...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29101483/resveratrol-suppresses-ethanol-stress-in-winery-and-bottom-brewery-yeast-by-affecting-superoxide-dismutase-lipid-peroxidation-and-fatty-acid-profile
#2
Lucia Gharwalova, Karel Sigler, Jana Dolezalova, Jan Masak, Tomas Rezanka, Irena Kolouchova
Mid-exponential cultures of two traditional biotechnological yeast species, winery Saccharomyces cerevisiae and the less ethanol tolerant bottom-fermenting brewery Saccharomyces pastorianus, were exposed to different concentrations of added ethanol (3, 5 and 8%) The degree of ethanol-induced cell stress was assessed by measuring the cellular activity of superoxide dismutase (SOD), level of lipid peroxidation products, changes in cell lipid content and fatty acid profile. The resveratrol as an antioxidant was found to decrease the ethanol-induced rise of SOD activity and suppress the ethanol-induced decrease in cell lipids...
November 3, 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/29091853/hydrolytic-pre-treatment-methods-for-enhanced-biobutanol-production-from-agro-industrial-wastes
#3
Sampa Maiti, Gorka Gallastegui, Gayatri Suresh, Saurabh Jyoti Sarma, Satinder Kaur Brar, Patrick Drogui, Yann LeBihan, Gerardo Buelna, Mausam Verma, Carlos Ricardo Soccol
Brewery industry liquid waste (BLW), brewery spent grain (BSG), apple pomace solid wastes (APS), apple pomace ultrafiltration sludge (APUS) and starch industry wastewater (SIW) have been considered as substrates to produce biobutanol. Efficiency of hydrolysis techniques tested to produce fermentable sugars depended on nature of agro-industrial wastes and process conditions. Acid-catalysed hydrolysis of BLW and BSG gave a total reducing sugar yield of 0.433 g/g and 0.468 g/g respectively. Reducing sugar yield from microwave assisted hydrothermal method was 0...
October 5, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29073558/balancing-carbon-nitrogen-ratio-to-improve-nutrients-removal-and-algal-biomass-production-in-piggery-and-brewery-wastewaters
#4
Hongli Zheng, Mingzhi Liu, Qian Lu, Xiaodan Wu, Yiwei Ma, Yanling Cheng, Min Addy, Yuhuan Liu, Roger Ruan
To improve nutrients removal from wastewaters and enhance algal biomass production, piggery wastewater was mixed with brewery wastewaters. The results showed that it was a promising way to cultivate microalga in piggery and brewery wastewaters by balancing the carbon/nitrogen ratio. The optimal treatment condition for the mixed piggery-brewery wastewater using microalga was piggery wastewater mixed with brewery packaging wastewater by 1:5 at pH 7.0, resulting in carbon/nitrogen ratio of 7.9, with the biomass concentration of 2...
October 16, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29065128/a-statistically-rigorous-sampling-design-to-integrate-avian-monitoring-and-management-within-bird-conservation-regions
#5
David C Pavlacky, Paul M Lukacs, Jennifer A Blakesley, Robert C Skorkowsky, David S Klute, Beth A Hahn, Victoria J Dreitz, T Luke George, David J Hanni
Monitoring is an essential component of wildlife management and conservation. However, the usefulness of monitoring data is often undermined by the lack of 1) coordination across organizations and regions, 2) meaningful management and conservation objectives, and 3) rigorous sampling designs. Although many improvements to avian monitoring have been discussed, the recommendations have been slow to emerge in large-scale programs. We introduce the Integrated Monitoring in Bird Conservation Regions (IMBCR) program designed to overcome the above limitations...
2017: PloS One
https://www.readbyqxmd.com/read/29053588/yeast-killer-toxin-k28-biology-and-unique-strategy-of-host-cell-intoxication-and-killing
#6
REVIEW
Björn Becker, Manfred J Schmitt
The initial discovery of killer toxin-secreting brewery strains of Saccharomyces cerevisiae (S. cerevisiae) in the mid-sixties of the last century marked the beginning of intensive research in the yeast virology field. So far, four different S. cerevisiae killer toxins (K28, K1, K2, and Klus), encoded by cytoplasmic inherited double-stranded RNA viruses (dsRNA) of the Totiviridae family, have been identified. Among these, K28 represents the unique example of a yeast viral killer toxin that enters a sensitive cell by receptor-mediated endocytosis to reach its intracellular target(s)...
October 20, 2017: Toxins
https://www.readbyqxmd.com/read/28991800/pretreatment-of-brewery-effluent-to-cultivate-spirulina-sp-for-nutrients-removal-and-biomass-production
#7
Qian Lu, Hui Liu, Wen Liu, Yuming Zhong, Caibing Ming, Wei Qian, Qin Wang, Jianliang Liu
Due to the low concentration of nitrate and high contents of organics, brewery effluent was not suitable for the cultivation of Spirulina sp. This work changed the nutrient profile of brewery effluent effectively by dilution, addition of nitrate, and anaerobic digestion. The result showed that the optimum dilution rate and NaNO3 addition for brewery effluent were 20% and 0.5 g/L, respectively. Spirulina sp. grown in pretreated brewery effluent produced 1.562 mg/L biomass and reduced concentrations of nutrients to reach the permissible dischargeable limits...
October 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28986374/chromosomal-aneuploidy-improves-brewing-characteristics-of-sake-yeast
#8
Masafumi Kadowaki, Yuki Fujimaru, Seiga Taguchi, Jannatul Ferdouse, Kazutaka Sawada, Yuta Kimura, Yohei Terasawa, Gennaro Agrimi, Toyoaki Anai, Hideki Noguchi, Atsushi Toyoda, Asao Fujiyama, Takeshi Akao, Hiroshi Kitagaki
The effect of chromosomal aneuploidy on the brewing characteristics in brewery yeasts has not been studied. Here, we report that chromosomal aneuploidy in sake brewery yeast (Saccharomyces cerevisiae) leads to the development of favorable brewing characteristics. We found that pyruvate-underproducing sake yeast, which produces less off-flavor diacetyl, is aneuploid and trisomic for chromosomes XI and XIV. To confirm that this phenotype is due to aneuploidy, we obtained 45 haploids with various chromosomal additions and investigated their brewing profiles...
October 6, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28985995/aerobic-granular-sludge-technology-mechanisms-of-granulation-and-biotechnological-applications
#9
REVIEW
Y V Nancharaiah, G Kiran Kumar Reddy
Aerobic granular sludge (AGS) is a novel microbial community which allows simultaneous removal of carbon, nitrogen, phosphorus and other pollutants in a single sludge system. AGS is distinct from activated sludge in physical, chemical and microbiological properties and offers compact and cost-effective treatment for removing oxidized and reduced contaminants from wastewater. AGS sequencing batch reactors have shown their utility in the treatment of abattoir, live-stock, rubber, landfill leachate, dairy, brewery, textile and other effluents...
September 21, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28982162/mycotoxin-profiling-of-1000-beer-samples-with-a-special-focus-on-craft-beer
#10
Jeroen Peters, Ruud van Dam, Ronald van Doorn, David Katerere, Franz Berthiller, Willem Haasnoot, Michel W F Nielen
Currently beer is booming, mainly due to the steady rise of craft breweries worldwide. Previous surveys for occurrence of mycotoxins in beer, were mainly focussed on industrial produced beer. The present survey reports the presence of mycotoxins in craft beer and how this compares to industrial produced beer. More than 1000 beers were collected from 47 countries, of which 60% were craft beers. A selection of 1000 samples were screened for the presence of aflatoxin B1, ochratoxin A (OTA), zearalenone (ZEN), fumonisins (FBs), T-2 and HT-2 toxins (T-2 and HT-2) and deoxynivalenol (DON) using a mycotoxin 6-plex immunoassay...
2017: PloS One
https://www.readbyqxmd.com/read/28977764/comparative-genomic-and-plasmid-analysis-of-beer-spoiling-and-non-beer-spoiling-lactobacillus-brevis-isolates
#11
Jordyn Bergsveinson, Barry Ziola
Beer-spoilage-related lactic acid bacteria (BSR LAB) belong to multiple genera and species; however, beer-spoilage capacity is isolate-specific and partially acquired via horizontal gene transfer within the brewing environment. Thus, the extent to which genus-, species-, or environment- (i.e., brewery-) level genetic variability influences beer-spoilage phenotype is unknown. Publicly available Lactobacillus brevis genomes were analyzed via BlAst Diagnostic Gene findEr (BADGE) for BSR genes and assessed for pangenomic relationships...
October 4, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28946000/songbird-response-to-rest-rotation-and-season-long-cattle-grazing-in-a-grassland-sagebrush-ecosystem
#12
Jessie D Golding, Victoria J Dreitz
Grazing on natural rangelands, which are areas dominated by native vegetation that are used for livestock grazing, can achieve desired vegetation outcomes, preserve native habitat, and economically benefit multiple stakeholders. It is a powerful tool that can be manipulated to reduce wildlife declines and benefit ecosystems. However, the benefits of conservation grazing systems on many wildlife communities remain relatively unexplored. We compared songbird communities between two grazing systems in eastern Montana: rest-rotation, which is a conservation grazing system, and season-long...
December 15, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28939514/characterization-of-%C3%AE-glucan-formation-by-lactobacillus-brevis-tmw-1-2112-isolated-from-slimy-spoiled-beer
#13
Marion E Fraunhofer, Andreas J Geissler, Daniel Wefers, Mirko Bunzel, Frank Jakob, Rudi F Vogel
Despite several hurdles, which hinder bacterial growth in beer, certain bacteria are still able to spoil beer. One type of spoilage is characterized by an increased viscosity and slimy texture caused by exopolysaccharide (EPS) formation of lactic acid bacteria (LAB). In this study, we characterize for the first time EPS production in a beer-spoiling strain (TMW 1.2112) of Lactobacillus brevis, a species commonly involved in beer spoilage. The strain's growth dynamics were assessed and we found an increased viscosity or ropiness in liquid or on solid media, respectively...
September 20, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28918347/anaerobic-digestion-of-brewery-spent-grains-trace-elements-addition-requirement
#14
Claire Bougrier, Delphine Dognin, Cécile Laroche, Valérie Gonzalez, Dalel Benali-Raclot, Jesús Andrés Cacho Rivero
The current study evaluates and compares the stability of anaerobic digestion of Brewery Spent Grains (BSG) with and without addition of nutrients. Based on the composition of the BSG two levels of nutrients addition were defined. Control reactor, without addition of nutrients, showed signs of instability after 3months of operation and collapsed. On the contrary, supplemented reactors led to a COD removal rate of 60% and a methane production of 280NLCH4.kg(-1) VSadded. According to these results, it was possible to define an additive solution adapted to BSG degradation...
September 2, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28910550/overview-of-craft-brewing-specificities-and-potentially-associated-microbiota
#15
Lindsey Rodhouse, Franck Carbonero
The brewing process differs slightly in craft breweries as compared to industrial breweries, as there are fewer control points. This affects the microbiota of the final product. Beer contains several antimicrobial properties that protect it from pathogens, such as low pH, low oxygen and high carbon dioxide content, and the addition of hops. However, these hurdles have limited power controlling spoilage organisms. Contamination by these organisms can originate in the raw materials, persist in the environment, and be introduced by using flavoring ingredients later in the process...
September 14, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28905226/identification-and-characterization-of-phospholipids-with-very-long-chain-fatty-acids-in-brewer-s-yeast
#16
Tomáš Řezanka, Irena Kolouchová, Lucia Gharwalová, Andrea Palyzová, Karel Sigler
Yeast lipids and fatty acids (FA) were analyzed in Saccharomyces pastorianus from seven breweries and in the dietary yeast supplement Pangamin. GC-MS identified more than 30 FA, half of which were very-long chain fatty acids (VLCFA) with hydrocarbon chain lengths of ≥22 C atoms. Positional isomers ω-9 and ω-7 were identified in FA with C18-C28 even-numbered alkyl chains. The most abundant ω-7 isomer was cis-vaccenic acid. The structure of monounsaturated FA was proved by dimethyl disulfide adducts (position of double bonds and cis geometric configuration) and by GC-MS of pyridyl carbinol esters...
September 13, 2017: Lipids
https://www.readbyqxmd.com/read/28877651/production-of-a-bioflocculant-from-klebsiella-sp-os-1-using-brewery-wastewater-as-a-source
#17
Lili Ma, Jingjing Liang, Shanyi Wang, Bing Yang, Mingyan Chen, Yucheng Liu
Abstracts This study evaluated the potential of bioflocculant production from a Klebsiella strain using brewery wastewater as nutrients. The bioflocculant named OS-1B produced by Klebsiella sp. OS-1 exhibited a good flocculating activity to kaolin clay suspension (around 95%), when the diluted brewery wastewater with 7.2 mg/L total nitrogen and 1013 mg/L CODCr, was used as a nitrogen source. Glucose (15 g/L) is the most favorable carbon source for Klebsiella sp. OS-1 in bioflocculant production from the brewery wastewater...
September 7, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28867951/brewery-waste-reuse-for-protease-production-by-lactic-%C3%A2-acid-fermentation
#18
Thiago Rocha Dos Santos Mathias, Paula Fernandes de Aguiar, João Batista de Almeida E Silva, Pedro Paulo Moretzsohn de Mello, Eliana Flávia Camporese Sérvulo
This study evaluated the use of three solid brewery wastes: brewer's spent grain, hot trub and residual brewer's yeast, as alternative media for the cultivation of lactic acid bacteria to evaluate their potential for proteolytic enzyme production. Initially, a mixture experimental design was used to evaluate the effect of each residue, as well as different mixtures (with the protein content set at 4%) in the enzyme production. At predetermined intervals, the solid and liquid fractions were separated and the extracellular proteolytic activity was determined...
June 2017: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/28867948/biogas-production-from-brewer-s-yeast-using-an-anaerobic-sequencing-batch-reactor
#19
Gregor Drago Zupančič, Mario Panjičko, Bruno Zelić
Renewable energy sources are becoming increasingly important in the beverage and food industries. In the brewing industry, a significant percentage of the used raw materials finishes the process as secondary resource or waste. The research on the anaerobic digestion of brewer's yeast has been scarce until recent years. One of the reasons for this is its use as a secondary resource in the food industry and as cattle feed. Additionally, market value of brewer's yeast is higher than its energy value. Due to the increase of energy prices, brewer's yeast has become of interest as energy substrate despite its difficult degradability in anaerobic conditions...
June 2017: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/28867002/lactobacillus-cerevisiae-sp-nov-isolated-from-a-spoiled-brewery-sample
#20
Jennifer Koob, Fritz Jacob, Mareike Wenning, Mathias Hutzler
A Gram-stain-positive, non-motile, rod-shaped bacterium, designated TUM BP 140423000-2250T (=DSM 100836T=LMG 29073T), was isolated from spoiled beer. This bacterium did not form spores, and was catalase-negative and facultatively anaerobic. Its taxonomic position was determined in a polyphasic study. The 16S rRNA gene sequence similarity data showed that the strain belonged to the Lactobacillus genus with the nearest neighbours being Lactobacillus koreensis DCY50T (sequence similarity 99.5 %), Lactobacillus yonginensis THK-V8T (99...
September 2017: International Journal of Systematic and Evolutionary Microbiology
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