Read by QxMD icon Read


Sanelle van Wyk, Filipa V M Silva
Brettanomyces yeasts are increasingly being used to produce lambic style beers and craft beers with unique flavours. Currently, the industry monitors Brettanomyces bruxellensis using time consuming plate counting. B. bruxellensis is a fastidious slow growing organism, requiring 5 days of incubation at 30 °C for visible growth on agar plates. Thus, a need exists to develop a quicker, feasible method to enumerate this yeast. The aim of this study was therefore to determine the feasibility of using the 'direct' and 'indirect' impedance methods for the enumeration of B...
October 25, 2016: Biotechnology Journal
Sachiko Iizuka-Furukawa, Atsuko Isogai, Kazutaka Kusaka, Tsutomu Fujii, Yoshinori Wakai
The grassy characteristic aroma perceived in brewed sake made from low-glutelin rice (Oryza sativa L. Mizuhonoka) was examined by gas chromatography-olfactometry and gas chromatography-mass spectrometry. By comparing the odor properties and Kovats retention indices to those of standard compounds, 4-mercapto-4-methylpentan-2-one (4MMP) was found to contribute to the characteristic aroma. Sake brewing using Mizuhonoka, low-glutelin rice, and Gin-ohmi (a control) revealed that 4MMP concentrations in Mizuhonoka sake samples were higher than those in Gin-ohmi samples over the fermentation period...
October 20, 2016: Journal of Bioscience and Bioengineering
J Suriya, S Bharathiraja, M Krishnan, P Manivasagan, S-K Kim
Amylases are crucial enzymes which hydrolyze internal glycosidic linkages in starch and produce as primary products dextrins and oligosaccharides. Amylases are classified into α-amylase, β-amylase, and glucoamylase based on their three-dimensional structures, reaction mechanisms, and amino acid sequences. Amylases have innumerable applications in clinical, medical, and analytical chemistries as well as in food, detergent, textile, brewing, and distilling industries. Amylases can be produced from plants, animals, and microbial sources...
2016: Advances in Food and Nutrition Research
Dragana Dragas Milovanovic, Mihajlo Jakovljevic, Milica Scekic, Natasa Djordjevic
BACKGROUND: The number of adolescents who use caffeine is constantly increasing. As juvenile age is vulnerable, it is reasonable to expect that they will differently perceive reason and react to caffeine use than adults, and be more prone to unwanted physiological and psychological consequences of its consumption. AIM: Analysis of the scope and pattern of caffeine consumption among adolescents in Serbia. STUDY DESIGN: The cross-sectional survey was implemented in the study population of 191 Serbian adolescents during 2010...
October 14, 2016: International Journal of Adolescent Medicine and Health
Margarida Gonçalves, Ana Pontes, Pedro Almeida, Raquel Barbosa, Marta Serra, Diego Libkind, Mathias Hutzler, Paula Gonçalves, José Paulo Sampaio
Beer is one of the oldest alcoholic beverages and is produced by the fermentation of sugars derived from starches present in cereal grains. Contrary to lager beers, made by bottom-fermenting strains of Saccharomyces pastorianus, a hybrid yeast, ale beers are closer to the ancient beer type and are fermented by S. cerevisiae, a top-fermenting yeast. Here, we use population genomics to investigate (1) the closest relatives of top-fermenting beer yeasts; (2) whether top-fermenting yeasts represent an independent domestication event separate from those already described; (3) whether single or multiple beer yeast domestication events can be inferred; and (4) whether top-fermenting yeasts represent non-recombinant or recombinant lineages...
October 4, 2016: Current Biology: CB
Karim C Piacentini, Liliana O Rocha, Lívia C Fontes, Lorena Carnielli, Tatiana A Reis, Benedito Corrêa
Worldwide, barley is the main source of carbohydrate in the brewing process. However, corn is often used as an adjunct to improve and accelerate the fermentation process. Considering that, these two substrates are susceptible to fungal contamination as well as mycotoxins. The objective of the current study is to determine the incidence of the mycotoxins deoxynivalenol (DON) and fumonisin B1 (FB1) in industrial beers. The method applied for mycotoxin analyses included high performance liquid chromatography. The mean levels for recovery experiments were 89...
March 1, 2017: Food Chemistry
Alborz Feizi, Yibo Zhang, Alon Greenbaum, Alex Guziak, Michelle Luong, Raymond Yan Lok Chan, Brandon Berg, Haydar Ozkan, Wei Luo, Michael Wu, Yichen Wu, Aydogan Ozcan
Monitoring yeast cell viability and concentration is important in brewing, baking and biofuel production. However, existing methods of measuring viability and concentration are relatively bulky, tedious and expensive. Here we demonstrate a compact and cost-effective automatic yeast analysis platform (AYAP), which can rapidly measure cell concentration and viability. AYAP is based on digital in-line holography and on-chip microscopy and rapidly images a large field-of-view of 22.5 mm(2). This lens-free microscope weighs 70 g and utilizes a partially-coherent illumination source and an opto-electronic image sensor chip...
September 30, 2016: Lab on a Chip
Thuy Nguyen, Meredith Kuchera, Katie Smoot, Charles Diako, Beata Vixie, Carolyn F Ross
The objective of this study was to determine if Chardonnay grape seed pomace (GSP), a waste stream of wine production, could be used as a functional ingredient in brewed coffee. Two consumer panels were conducted to assess the acceptance of coffee at coffee replacement (w/w) values of 0% (control), 6.25%, 12.50%, 18.75%, or 25% GSP. The 1st consumer panel (n = 80) assessed the coffee samples served "black." The 2nd panel (n = 67) assessed the coffee samples with adjustment (that is, sweeteners, milk, and cream) options available...
October 5, 2016: Journal of Food Science
Wenwen Yu, Xinle Tan, Wei Zou, Zhenxia Hu, Glen P Fox, Michael J Gidley, Robert G Gilbert
Correlations among barley protein, starch molecular structure and grain size were determined using 30 barley samples with variable protein contents. Starch molecular structure was characterized by fluorophore-assisted carbohydrate electrophoresis and by size-exclusion chromatography (SEC, also termed GPC). The chain-length distributions of amylopectin were fitted using a mathematical model reflecting the relative activities of starch branching enzymes and starch synthase enzymes. Increased protein content significantly and negatively correlated with higher amounts of amylose with longer chains (degree of polymerization, DP 1600-40000) while barley grain sizes positively associated with starch contents...
January 2, 2017: Carbohydrate Polymers
O Brew, E Nikolopoulou, A Hughes, M Christian, Y Lee, O Oduwole, M H F Sullivan, A Woodman
We evaluated the impact of placental micro (≤50 mg) and macro (∼200 mg) explants, oxygen concentration and culture method on placental RNA quality after long-term culture. Our findings show that micro explants cultured at 8% oxygen have the best RNA quality and tissue structure. Macro explants were less viable after long-term culture. Macro explants and explants undergoing syncytial degeneration produced poor quality RNA and should be avoided.
October 2016: Placenta
Dale Ding, Stefan Brew, Ben McGuinness, Edward W Mee
No abstract text is available yet for this article.
October 2016: Journal of Neurosciences in Rural Practice
Jayant S Vaidya, Frederik Wenz, Max Bulsara, Jeffrey S Tobias, David J Joseph, Christobel Saunders, Chris Brew-Graves, Ingrid Potyka, Stephen Morris, Hrisheekesh J Vaidya, Norman R Williams, Michael Baum
BACKGROUND: Based on our laboratory work and clinical trials we hypothesised that radiotherapy after lumpectomy for breast cancer could be restricted to the tumour bed. In collaboration with the industry we developed a new radiotherapy device and a new surgical operation for delivering single-dose radiation to the tumour bed - the tissues at highest risk of local recurrence. We named it TARGeted Intraoperative radioTherapy (TARGIT). From 1998 we confirmed its feasibility and safety in pilot studies...
September 2016: Health Technology Assessment: HTA
Chabaco Armijos, Gianluca Gilardoni, Luis Amay, Antonio Lozano, Francesco Bracco, Jorge Ramirez, Nicole Bec, Christian Larroque, Paola Vita Finzi, Giovanni Vidari
ETHNOBOTANICAL AND ETHNOMEDICINAL RELEVANCE: This study concerns seven Huperzia species (Lycopodiaceae), namely H. brevifolia, H. columnaris, H. compacta, H. crassa, H. espinosana, H. tetragona, H. weberbaueri, which are considered sacred plants by the Saraguro community, living in the Southern Andes of Ecuador; these plants are widely used in traditional medicine and ritual ceremonies. MATERIAL AND METHODS: The plants were selected on the basis of written interviews with 10 visionary healers (yachak) (2 women, 8 men), indicated as the most credible by the Saraguro Healers Council...
September 26, 2016: Journal of Ethnopharmacology
Osamu Yamada, Masayuki Machida, Akira Hosoyama, Masatoshi Goto, Toru Takahashi, Taiki Futagami, Youhei Yamagata, Michio Takeuchi, Tetsuo Kobayashi, Hideaki Koike, Keietsu Abe, Kiyoshi Asai, Masanori Arita, Nobuyuki Fujita, Kazuro Fukuda, Ken-Ichi Higa, Hiroshi Horikawa, Takeaki Ishikawa, Koji Jinno, Yumiko Kato, Kohtaro Kirimura, Osamu Mizutani, Kaoru Nakasone, Motoaki Sano, Yohei Shiraishi, Masatoshi Tsukahara, Katsuya Gomi
Awamori is a traditional distilled beverage made from steamed Thai-Indica rice in Okinawa, Japan. For brewing the liquor, two microbes, local kuro (black) koji mold Aspergillus luchuensis and awamori yeast Saccharomyces cerevisiae are involved. In contrast, that yeasts are used for ethanol fermentation throughout the world, a characteristic of Japanese fermentation industries is the use of Aspergillus molds as a source of enzymes for the maceration and saccharification of raw materials. Here we report the draft genome of a kuro (black) koji mold, A...
September 20, 2016: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
Serban Radian, Yoan Diekmann, Plamena Gabrovska, Brendan Holland, Lisa Bradley, Helen Wallace, Karen Stals, Anna-Marie Bussell, Karen McGurren, Martin Cuesta, Anthony W Ryan, Maria Herincs, Laura C Hernández-Ramírez, Aidan Holland, Jade Samuels, Elena Daniela Aflorei, Sayka Barry, Judit Dénes, Ida Pernicova, Craig E Stiles, Giampaolo Trivellin, Ronan McCloskey, Michal Ajzensztejn, Noina Abid, Scott A Akker, Moises Mercado, Mark Cohen, Rajesh V Thakker, Stephanie Baldeweg, Ariel Barkan, Madalina Musat, Miles Levy, Stephen M Orme, Martina Unterländer, Joachim Burger, Ajith V Kumar, Sian Ellard, Joseph McPartlin, Ross McManus, Gerard J Linden, Brew Atkinson, David J Balding, Amar Agha, Chris J Thompson, Steven J Hunter, Mark G Thomas, Patrick J Morrison, Márta Korbonits
The aryl hydrocarbon receptor interacting protein (AIP) founder mutation R304(*) (or p.R304(*) ; NM_003977.3:c.910C>T, p.Arg304Ter) identified in Northern Ireland (NI) predisposes to acromegaly/gigantism; its population health impact remains unexplored. We measured R304(*) carrier frequency in 936 Mid Ulster, 1,000 Greater Belfast (both in NI) and 2,094 Republic of Ireland (ROI) volunteers and in 116 NI or ROI acromegaly/gigantism patients. Carrier frequencies were 0.0064 in Mid Ulster (95%CI = 0.0027-0...
September 21, 2016: Human Mutation
Chengtuo Niu, Linjiang Zhu, Xin Xu, Qi Li
Higher thermostability is required for 1,3-1,4-β-glucanase to maintain high activity under harsh conditions in the brewing and animal feed industries. In this study, a comprehensive and comparative analysis of thermostability in bacterial β-glucanases was conducted through a method named spatial compartmentalization of mutational hotspots (SCMH), which combined alignment of homologous protein sequences, spatial compartmentalization, and molecular dynamic (MD) simulation. The overall/local flexibility of six homologous β-glucanases was calculated by MD simulation and linearly fitted with enzyme optimal enzymatic temperatures...
September 19, 2016: Applied Microbiology and Biotechnology
Robert Nash, V Elwell, S Brew, M Powell, J P Grieve
We describe two cases of clinical and radiographic vasospasm after transsphenoidal resection of a craniopharyngioma. We review the literature on the association of vasospasm and craniopharyngioma and examine management options. Given the lack of evidence for the optimal management of these patients, treatment in concordance with protocols for vasospasm due to subarachnoid haemorrhage is recommended.
November 2016: Acta Neurochirurgica
Bronwyn Brew, Kerry Inder, Joanne Allen, Matthew Thomas, Brian Kelly
BACKGROUND: Isolation, long work days, climate change and globalization are just some of the many pressures that make farming a vulnerable occupation for incurring mental health issues. The objective of this study was to determine whether farming in Australia is associated with poorer wellbeing, physical and mental health, and less health service use. METHODS: The Australian Rural Mental Health Study, a longitudinal cohort study was analysed over four time points comparing farmers with non-farming workers (n = 1184 at baseline)...
2016: BMC Public Health
Zhiqiang Kong, Minmin Li, Jingjing An, Jieying Chen, Yuming Bao, Frédéric Francis, Xiaofeng Dai
Despite the fact that beer is produced on a large scale, the effects of pesticide residues on beer have been rarely investigated. In this study, we used micro-brewing settings to determine the effect of triadimefon on the growth of Saccharomyces cerevisiae and beer flavor. The yeast growth in medium was significantly inhibited (45%) at concentrations higher than 5 mg L(-1), reaching 80% and 100% inhibition at 10 mg L(-1) and 50 mg L(-1), respectively. There were significant differences in sensory quality between beer samples fermented with and without triadimefon based on data obtained with an electronic tongue and nose...
2016: Scientific Reports
Chengtuo Niu, Linjiang Zhu, Annie Hill, R Alex Speers, Qi Li
OBJECTIVES: To improve the thermostability and catalytic property of a mesophilic 1,3-1,4-β-glucanase by combinational mutagenesis and to test its effect in congress mashing. RESULTS: A mutant β-glucanase (rE-BglTO) constructed by combinational mutagenesis showed a 25 °C increase in optimal temperature (to 70 °C) a 19.5 °C rise in T 50 value and a 15.6 °C increase in melting temperature compared to wild-type enzyme. Its half-life values at 60 and 70 °C were 152 and 99 min, which were 370 and 800 % higher than those of wild-type enzyme...
September 15, 2016: Biotechnology Letters
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"