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Donatella Farina, Manuel Zinellu, Mauro Fanari, Maria Cristina Porcu, Sergio Scognamillo, Giulia Maria Grazia Puggioni, Gaia Rocchitta, Pier Andrea Serra, Luca Pretti
The development and applications of biosensors in the food industry has had a rapid grown due to their sensitivity, specificity and simplicity of use with respect to classical analytical methods. In this study, glucose and ethanol amperometric biosensors integrated with a wireless telemetry system were developed and used for the monitoring of top and bottom fermentations in beer wort samples. The collected data were in good agreement with those obtained by reference methods. The simplicity of construction, the low cost and the short time of analysis, combined with easy interpretation of the results, suggest that these devices could be a valuable alternative to conventional methods for monitoring fermentation processes in the food industry...
March 1, 2017: Food Chemistry
Hebert Vinicius Pereira, Victória Silva Amador, Marcelo Martins Sena, Rodinei Augusti, Evandro Piccin
Paper spray mass spectrometry (PS-MS) combined with partial least squares discriminant analysis (PLS-DA) was applied for the first time in a forensic context to a fast and effective differentiation of beers. Eight different brands of American standard lager beers produced by four different breweries (141 samples from 55 batches) were studied with the aim at performing a differentiation according to their market prices. The three leader brands in the Brazilian beer market, which have been subject to fraud, were modeled as the higher-price class, while the five brands most used for counterfeiting were modeled as the lower-price class...
October 12, 2016: Analytica Chimica Acta
Birgitte Skadhauge, Anna Haldrup, Ole Olsen
The founder of the Carlsberg brewery, J.C Jacobsen, recognized the value of private-public partnership and established the Carlsberg Foundation in 1876 with the single aim of applying research and innovation to brew the best beer. One hundred and forty years on, Jacobsen's vision still prevails, and in this interview three scientists from the Carlsberg Research Laboratory (Birgitte Skadhauge, Anna Haldrup, and Ole Olsen) share their experience about finding a career at the crossroads between industry and basic research...
October 2016: Trends in Plant Science
Andreas J Geissler, Jürgen Behr, Rudi F Vogel
Lactobacillus backii is an important beer-spoiling species. Five strains isolated from four different breweries were sequenced using single-molecule real-time sequencing. Five complete genomes were generated, which will help to understand niche adaptation to beer and provide the basis for consecutive analyses.
2016: Genome Announcements
Daniele de Jesus Ferreira, Anderson de Moura Zanine, Rogério de Paula Lana, Alexandre Lima de Souza, Marinaldo Divino Ribeiro, Fagton Mattos Negrão, Wanderson José Rodrigues Castro, Henrique Nunes Parente, Luiz Juliano Valério Geron, Larissa Rodrigues de Azevedo Câmara
The objective was to evaluate the ingestive behavior of ovine fed Marandu grass silage with dehydrated brewery residue added. The experiment had a completely randomized design with five treatments and four repetitions, with the treatments levels of inclusion being of 0, 10, 20, 30, and 40% natural matter of naturally dehydrated brewery residue for 36 hours to the marandu grass silage. 20 ovines were used and the experimental period was 21 days, 15 being for adaptation to diets. The use of brewery byproduct promoted quadratic effect (P < 0...
2016: TheScientificWorldJournal
Carlos Cernuda, Edwin Lughofer, Helmut Klein, Clemens Forster, Marcin Pawliczek, Markus Brandstetter
During the production process of beer, it is of utmost importance to guarantee a high consistency of the beer quality. For instance, the bitterness is an essential quality parameter which has to be controlled within the specifications at the beginning of the production process in the unfermented beer (wort) as well as in final products such as beer and beer mix beverages. Nowadays, analytical techniques for quality control in beer production are mainly based on manual supervision, i.e., samples are taken from the process and analyzed in the laboratory...
August 20, 2016: Analytical and Bioanalytical Chemistry
E M Hafez, M A Hamad, M Fouad, A Abdel-Lateff
Endogenous alcohol has been applied for spontaneous ethanol production via different metabolic pathways of the human body. Auto-brewery syndrome describes the patients with alcohol intoxication after ingesting carbohydrate-rich meals. The main objective of this study is to investigate the effect of diabetes mellitus (DM), liver cirrhosis (LC) and presence of both (DM and LC) on blood alcohol concentration (BAC) especially after carbohydrate ingestion. BAC has been measured by headspace gas chromatography-mass spectrometry in three groups of humans namely control, DM, LC and both (DM and LC) groups...
August 4, 2016: Human & Experimental Toxicology
Lalitagauri Ray, Sunita Pramanik, Debabrata Bera
BACKGROUND: The enzyme catalyzed process technology has enormous potential in the food sectors as indicated by the recent studies. It is very well realized that the adaptation of the enzyme catalyzed process depends on the availability of enzyme in affordable prices. OBJECTIVE: Enzymes may be used in different food sectors like dairy, fruits & vegetable processing, meat tenderization, fish processing, brewery and wine making, starch processing and many other...
July 27, 2016: Recent Patents on Biotechnology
Maciej Skoracki, Greg S Spicer, Barry M Oconnor
Quill mites belonging to the subfamily Syringophilinae Lavoipierre, 1953 associated with the Nearctic passeriform birds are revised. All of the 49 known species, which are grouped in seven genera, are recorded. Among them, four new species are described: Syringophiloidus audubioni sp. nov. from Spizella breweri (Cassini) (Emberizidae), Syringophilopsis catesbyi sp. nov. from Vireo olivaceus (Linnaeus) (Vireonidae), S. wilsoni sp. nov. from Pheucticus melanocephalus (Swainson) (Cardinalidae), and S. bartrami sp...
2016: Zootaxa
Frank H Hedlund, Robert S Selig, Eva K Kragh
At a brewery, the base plate-to-shell weld seam of a 90-m(3) vertical cylindrical steel tank failed catastrophically. The 4 ton tank "took off" like a rocket leaving its contents behind, and landed on a van, crushing it. The top of the tank reached a height of 30 m. The internal overpressure responsible for the failure was an estimated 60 kPa. A rupture disc rated at < 50 kPa provided overpressure protection and thus prevented the tank from being covered by the European Pressure Equipment Directive. This safeguard failed and it was later discovered that the rupture disc had been installed upside down...
June 2016: Safety and Health At Work
Ivana Stachová, Ivona Lhotská, Petr Solich, Dalibor Šatínský
Beer is one of the most popular alcoholic beverages worldwide. For consumer acceptance, significant factors are its taste, flavour and colour. This study determines selected synthetic green, blue and yellow food colorants in popular Easter herb-coloured green beers on tap produced in breweries on Holy Thursday. The abuse of beer colouring with Tartrazine (E 102), Quinoline yellow (E 104), Sunset yellow (E 110), Patent blue (E 131), Indigo carmine (E 132), Brilliant blue FCF (E 133), Green S (E 142) and Fast green FCF (E 143) was assessed in 11 green beer samples purchased in local restaurants...
July 2016: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
Haiman Wang, Youpeng Qu, Da Li, John J Ambuchi, Weihua He, Xiangtong Zhou, Jia Liu, Yujie Feng
A continuous stirred microbial electrochemical reactor (CSMER), comprising of a complete mixing zone (CMZ) and microbial electrochemical zone (MEZ), was used for brewery wastewater treatment. The system realized 75.4 ± 5.7% of TCOD and 64.9 ± 4.9% of TSS when fed with brewery wastewater concomitantly achieving an average maximum power density of 304 ± 31 m W m(-2). Cascade utilization of organic matters made the CSMER remove a wider range of substrates compared with a continuous stirred tank reactor (CSTR), in which process 79...
2016: Scientific Reports
Alina Sánchez Blanco, Osmar Palacios Durive, Sulema Batista Pérez, Zoraida Díaz Montes, Nelson Pérez Guerra
The simultaneous production of amylase (AA) and protease (PA) activity by Bacillus subtilis UO-01 in brewery wastes was studied by combining the response surface methodology with the kinetic study of the process. The optimum conditions (T=36.0°C and pH=6.8) for high biomass production (0.92g/L) were similar to the conditions (T=36.8°C and pH=6.6) for high AA synthesis (9.26EU/mL). However, the maximum PA level (9.77EU/mL) was obtained at pH 7.1 and 37.8°C. Under these conditions, a considerably high reduction (between 69...
July 2016: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
Xutao Hong, Jing Chen, Lin Liu, Huan Wu, Haiqin Tan, Guangfa Xie, Qian Xu, Huijun Zou, Wenjing Yu, Lan Wang, Nan Qin
Chinese Rice Wine (CRW) is a common alcoholic beverage in China. To investigate the influence of microbial composition on the quality of CRW, high throughput sequencing was performed for 110 wine samples on bacterial 16S rRNA gene and fungal Internal Transcribed Spacer II (ITS2). Bioinformatic analyses demonstrated that the quality of yeast starter and final wine correlated with microbial taxonomic composition, which was exemplified by our finding that wine spoilage resulted from a high proportion of genus Lactobacillus...
2016: Scientific Reports
Rosemeri I Dams, Alexandre A Guilherme, Maria S Vale, Vanja F Nunes, Renato C Leitão, Sandra T Santaella
The aim of this research was to estimate the production of hydrogen, organic acids and alcohols by the strain of Clostridium acetobutylicum ATCC 824 using residual glycerol as a carbon source. The experiments were carried out in pure and mixed cultures in batch experiments. Three different sources of inocula for mixed culture were used. Ruminal liquid from goats and sludge collected from two upflow anaerobic sludge blanket reactors treating municipal wastewater and brewery effluent were tested for hydrogen, organic acids and alcohols production with or without C...
December 2016: Environmental Technology
B T Welch, N Coelho Prabhu, L Walkoff, S W Trenkner
CLINICAL BACKGROUND: A 71 year old male with 50 year history of Crohn's disease was evaluated for acute onset fogginess, dizziness, and slurred speech. Blood ethanol levels were elevated despite abstinence from alcohol for over thirty years. CT enterography demonstrated massive dilation of the small bowel with anastomotic stricture. DISCUSSION: Auto-brewery syndrome may be considered in a patient with chronic obstruction or hypomotility presenting with elevated serum ethanol levels in the setting of high carbohydrate intake...
May 9, 2016: Journal of Crohn's & Colitis
M A Hassan, Md Aftabuddin, D K Meena, P Mishal, S Das Gupta
A 60-day feeding trial was conducted to evaluate the efficacy of distiller's grain soluble (brewery waste) as a prospective ingredient to substitute expensive and high demand feed component, soybean meal for farming Labeo bata in cages installed in tropical reservoir. Two isonitrogenous and isocaloric diets comprising brewery waste (49.2 % CP) as test diet and soybean meal (44.4 % CP) as reference diet were formulated and extruded to obtain 2-mm floating pellets. The efficacy of the diets was tested in terms of survival (%), live weight gain (%), SGR (%/day), FCR, PER and ANPU and recorded 65 ± 0...
August 2016: Environmental Science and Pollution Research International
T T More, S Yan, R D Tyagi, R Y Surampalli
Thirteen extracellular polymeric substances (EPS) producing bacterial strains were cultivated (as mixed culture) in the sterilized sludge (suspended solids of 25 g/L) and the batch fermentation was carried out. Mixed culture revealed a high specific growth rate of 0.35/hr. The EPS production rate was higher up to 24 hours, which gradually decreased with further incubation. The kinetic estimates demonstrated growth-associated EPS production. Broth EPS revealed higher flocculation activity when combined with different cations (Ca(2+), Mg(2+), Fe(3+), and Al(3+)) in river water (≥90%), municipal wastewater (≥90%), and brewery wastewater (≥80%), respectively...
May 2016: Water Environment Research: a Research Publication of the Water Environment Federation
David Styles, Eduardo Mesa Dominguez, Dave Chadwick
Anaerobic digestion (AD) is expanding rapidly in the UK. Previous life cycle assessment (LCA) studies have highlighted the sensitivity of environmental outcomes to feedstock type, fugitive emissions, biomethane use, energy conversion efficiency and digestate management. We combined statistics on current and planned AD deployment with operational data from a survey of biogas plant operators to evaluate the environmental balance of the UK biogas sector for the years 2014 and 2017. Consequential LCA was applied to account for all major environmental credits and burdens incurred, including: (i) substitution of composting, incineration, sewer disposal, field decomposition and animal feeding of wastes; (ii) indirect land use change (ILUC) incurred by the cultivation of crops used for biogas production and to compensate for bakery and brewery wastes diverted from animal feed...
August 1, 2016: Science of the Total Environment
Grażyna Anna Płaza, Joanna Chojniak, Barbara Mendrek, Barbara Trzebicka, Libor Kvitek, Ales Panacek, Robert Prucek, Radek Zboril, Katarzyna Paraszkiewicz, Przemysław Bernat
In this study, culture supernatnats of Bacillus subtilis T-1 growing on brewery effluents and molasses was used for silver nanoparticles (Ag-NPs) synthesis. The biosurfactant production of B. subtilis T-1 was confirmed by the detection of genes in the genome and by the identification of the product in the supernatants. The genes for synthesis of surfactin (sfp, srfAA) and iturin (ituC) were noted by PCR reactions. Also, in examined culture supernatants the presence of C13, C14 and C15 surfactin homologues with the sodiated molecules [M + Na](+) at m/z 1030, 1044 and 1058 was confirmed using LC/MS/MS analysis...
April 2016: IET Nanobiotechnology
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