keyword
MENU ▼
Read by QxMD icon Read
search

fermentation

keyword
https://www.readbyqxmd.com/read/28092912/production-and-rheological-properties-of-welan-gum-produced-by-sphingomonas-sp-atcc-31555-with-different-nitrogen-sources
#1
Xiaopeng Xu, Zuoming Nie, Zhiyong Zheng, Li Zhu, Xiaobei Zhan
This study aimed to investigate the effect of nitrogen sources on the production and rheological properties of welan gum produced by Sphingomonas sp. ATCC 31555. Six different nitrogen sources were used for ATCC 31555 fermentation, and 2 of these were further analyzed due to their more positive influence on welan gum production and bacterial biomass. Bacterial biomass, welan gum yield, welan viscosity, molecular weight, monosaccharide composition, acyl content, and welan structure were analyzed. Welan gum production and the biomass concentration of ATCC 31555 were higher in media containing NaNO3 and beef extract...
January 17, 2017: Journal of Molecular Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28092820/pcr-screening-of-an-african-fermented-pearl-millet-porridge-metagenome-to-investigate-the-nutritional-potential-of-its-microbiota
#2
Fabien Saubade, Christèle Humblot, Youna M Hemery, Jean-Pierre Guyot
Cereals are staple foods in most African countries, and many African cereal-based foods are spontaneously fermented. The nutritional quality of cereal products can be enhanced through fermentation, and traditional cereal-based fermented foods (CBFFs) are possible sources of lactic acid bacteria (LAB) with useful nutritional properties. The nutritional properties of LAB vary depending on the species and even on the strain, and the microbial composition of traditional CBFFs varies from one traditional production unit (TPU) to another...
December 29, 2016: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28092734/combined-utilization-of-nutrients-and-sugar-derived-from-wheat-bran-for-d-lactate-fermentation-by-sporolactobacillus-inulinus-ybs1-5
#3
Jiahuang Li, Junfei Sun, Bin Wu, Bingfang He
To decrease d-Lactate production cost, wheat bran, a low-cost waste of milling industry, was selected as the sole feedstock. First, the nutrients were recovered from wheat bran by acid protease hydrolysis. Then, cellulosic hydrolysates were prepared from protease-treated samples after acid pretreatment and enzymatic saccharification. The combined use of nutrients and hydrolysates as nitrogen and carbon sources for fermentation by S. inulinus YB1-5 resulted in d-Lactate levels of 99.5g/L, with an average production efficiency of 1...
December 30, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/28092733/enzymatic-synthesis-of-an-ezetimibe-intermediate-using-carbonyl-reductase-coupled-with-glucose-dehydrogenase-in-an-aqueous-organic-solvent-system
#4
Zhi-Qiang Liu, Si-Chuan Dong, Huan-Huan Yin, Ya-Ping Xue, Xiao-Ling Tang, Xiao-Jian Zhang, Jun-Yao He, Yu-Guo Zheng
(4S)-3-[(5S)-5-(4-Fluorophenyl)-5-hydroxypentanoyl]-4-phenyl-1,3-oxazolidin-2-one ((S)-ET-5) is an important chiral intermediate in the synthesis of chiral side chain of ezetimibe. Recombinant Escherichia coli expressing carbonyl reductase (CBR) was successfully constructed in this study. The total E. coli biomass and the specific activity of recombinant CBR in 5L fermenter culture were 10.9gDCWL(-1) and 14900.3Ug(-1)DCW, respectively. The dual-enzyme coupled biocatalytic process in an aqueous-organic biphasic solvent system was first constructed using p-xylene as the optimal organic phase under optimized reaction conditions, and 150gL(-1) (4S)-3-[5-(4-fluorophenyl)-1,5-dioxophentyl]-4-phenyl-1,3-oxazolidin-2-one (ET-4) was successfully converted to (S)-ET-5 with a conversion of 99...
January 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28092369/context-dependent-role-for-chromatin-remodeling-component-pbrm1-baf180-in-clear-cell-renal-cell-carcinoma
#5
A Murakami, L Wang, S Kalhorn, P Schraml, W K Rathmell, A C Tan, R Nemenoff, K Stenmark, B-H Jiang, M E Reyland, L Heasley, C-J Hu
A subset of clear cell renal cell carcinoma (ccRCC) tumors exhibit a HIF1A gene mutation, yielding two ccRCC tumor types, H1H2 type expressing both HIF1α and HIF2α, and H2 type expressing HIF2α, but not functional HIF1α protein. However, it is unclear how the H1H2 type ccRCC tumors escape HIF1's tumor-suppressive activity. The polybromo-1 (PBRM1) gene coding for the BAF180 protein, a component of the SWItch/Sucrose Non-Fermentable (SWI/SNF) chromatin remodeling complex, is inactivated in 40% ccRCCs, the function and mechanism of BAF180 mutation is unknown...
January 16, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28091788/new-insights-into-the-role-of-ph-and-aeration-in-the-bacterial-production-of-calcium-carbonate-caco3
#6
Mostafa Seifan, Ali Khajeh Samani, Aydin Berenjian
Over recent years, the implementation of microbially produced calcium carbonate (CaCO3) in different industrial and environmental applications has become an alternative for conventional approaches to induce CaCO3 precipitation. However, there are many factors affecting the biomineralization of CaCO3, which may restrict its application. In this study, we investigated the effects of pH and aeration as the main two influential parameters on bacterial precipitation of CaCO3. The results showed that the aeration had a significant effect on bacterial growth and its rise from 0...
January 13, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28091787/production-of-water-soluble-yellow-pigments-via-high-glucose-stress-fermentation-of-monascus-ruber-cgmcc-10910
#7
Meihua Wang, Tao Huang, Gong Chen, Zhenqiang Wu
Monascus pigments are secondary metabolites of Monascus species and are mainly composed of yellow pigments, orange pigments and red pigments. In this study, a larger proportion of Monascus yellow pigments could be obtained through the selection of the carbon source. Hydrophilic yellow pigments can be largely produced extracellularly by Monascus ruber CGMCC 10910 under conditions of high glucose fermentation with low oxidoreduction potential (ORP). However, keeping high glucose levels later in the culture causes translation or a reduction of yellow pigment...
January 13, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28091525/a-fibrolytic-potential-in-the-human-ileum-mucosal-microbiota-revealed-by-functional-metagenomic
#8
Orlane Patrascu, Fabienne Béguet-Crespel, Ludovica Marinelli, Emmanuelle Le Chatelier, Anne-Laure Abraham, Marion Leclerc, Christophe Klopp, Nicolas Terrapon, Bernard Henrissat, Hervé M Blottière, Joël Doré, Christel Béra-Maillet
The digestion of dietary fibers is a major function of the human intestinal microbiota. So far this function has been attributed to the microorganisms inhabiting the colon, and many studies have focused on this distal part of the gastrointestinal tract using easily accessible fecal material. However, microbial fermentations, supported by the presence of short-chain fatty acids, are suspected to occur in the upper small intestine, particularly in the ileum. Using a fosmid library from the human ileal mucosa, we screened 20,000 clones for their activities against carboxymethylcellulose and xylans chosen as models of the major plant cell wall (PCW) polysaccharides from dietary fibres...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28091177/waste-to-biofuel-production-of-biobutanol-from-sago-waste-residues
#9
D Johnravindar, Kumarasamy Murugesan, Jonathan W C Wong, N Elangovan
The main concern of extensive production of biobutanol has been associated with the high cost of the substrate and the relatively low tolerance of Clostridia to biobutanol production. In this study, the use of fermentable cassava waste residue (CWR) as substrate for biobutanol production was investigated using solvent tolerant Clostridium sp. Four of obligatory, solvent producing bacteria were isolated from sago industry waste sites. The NSW, PNAS1, SB5 and SBI4 strains showed identical profile of 16S rRNA gene sequence similarity of Bacillus coagulans, Clostridium bifermentans and Clostridium sp...
January 16, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28089580/medium-optimization-based-on-yeast-s-elemental-composition-for-glutathione-production-in-saccharomyces-cerevisiae
#10
Maximilian Schmacht, Eric Lorenz, Ulf Stahl, Martin Senz
The production of glutathione (GSH) or GSH enriched yeast is still in the focus of research driven by a high industrial interest. In this study, an optimal growth rate for GSH production via Saccharomyces cerevisiae Sa-07346 was investigated. To further improve the fermentation process in a way that it is independent of lots, the influence of different WMIX medium compositions on biomass and GSH production was studied. Thereby, the fermentation medium was adjusted based on yeast's elemental composition. The resulting chemically defined fermentation medium led to high cell densities in fed-batches...
January 12, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28089402/aerobic-composting-of-digested-residue-eluted-from-dry-methane-fermentation-to-develop-a-zero-emission-process
#11
Yu-Lian Huang, Zhao-Yong Sun, Xiao-Zhong Zhong, Ting-Ting Wang, Li Tan, Yue-Qin Tang, Kenji Kida
Digested residue remained at the end of a process for the production of fuel ethanol and methane from kitchen garbage. To develop a zero-emission process, the compostability of the digested residue was assessed to obtain an added-value fertilizer. Composting of the digested residue by adding matured compost and a bulking agent was performed using a lab-scale composting reactor. The composting process showed that volatile total solid (VTS) degradation mainly occurred during the first 13days, and the highest VTS degradation efficiency was about 27% at the end...
January 12, 2017: Waste Management
https://www.readbyqxmd.com/read/28089136/recent-insights-into-biohydrogen-production-by-microalgae-from-biophotolysis-to-dark-fermentation
#12
REVIEW
Dillirani Nagarajan, Duu-Jong Lee, Akihiko Kondo, Jo-Shu Chang
One of the best options to alleviate the problems associated with global warming and climate change is to reduce burning of fossil fuels and search for new alternative energy resources. In case of biodiesel and bioethanol production, the choice of feedstock and the process design influences the GHG emissions and appropriate methods need to be adapted. Hydrogen is a zero-carbon and energy dense alternative energy carrier with clean burning properties and biohydrogen production by microalgae can reduce production associated GHG emissions to a great extent...
December 30, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/28089045/biotransformation-of-limonene-by-an-endophytic-fungus-using-synthetic-and-orange-residue-based-media
#13
Mário Cesar Jucoski Bier, Adriane Bianchi Pedroni Medeiros, Carlos Ricardo Soccol
Aroma and fragrances have high commercial value for use in food, cosmetics and perfumes. The biotransformation of terpenes by microorganisms represents an attractive alternative method for production of flavourings. Endophytic fungi offer a great potential for the production of several groups of compounds; however, few studies have evaluated the biotransformation of limonene. Following preliminary studies on the biotransformation of limonene, submerged fermentation was carried out using an endophytic fungus isolated from Pinus taeda and identified as Phomopsis sp...
February 2017: Fungal Biology
https://www.readbyqxmd.com/read/28088640/bioethanol-production-from-cellulosic-hydrolysates-by-engineered-industrial-saccharomyces-cerevisiae
#14
Ye-Gi Lee, Yong-Su Jin, Young-Lok Cha, Jin-Ho Seo
Even though industrial yeast strains exhibit numerous advantageous traits for the production of bioethanol, their genetic manipulation has been limited. This study demonstrates that an industrial polyploidy Saccharomyces cerevisiae JHS200 can be engineered through Cas9 (CRISPR associated protein 9)-based genome editing. Specifically, we generated auxotrophic mutants and introduced a xylose metabolic pathway into the auxotrophic mutants. As expected, the engineered strain (JX123) enhanced ethanol production from cellulosic hydrolysates as compared to other engineered haploid strains...
December 18, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/28088584/proton-pump-inhibition-and-cancer-therapeutics-a-specific-tumor-targeting-or-it-is-a-phenomenon-secondary-to-a-systemic-buffering
#15
REVIEW
Enrico Spugnini, Stefano Fais
One of the unsolved mysteries in oncology includes the strategies that cancer cells adopt to cope with an adverse microenvironment. However, we knew, from the Warburg's discovery that through their metabolism based on sugar fermentation, cancer cells acidify their microenvironment and this progressive acidification induces a selective pressure, leading to the development of very malignant cells entirely armed to survive in the hostile microenvironment generated by their own metabolism. In the last decades a primordial role for proton exchangers has been supported as a key tumor advantage in facing off the acidic milieu...
January 11, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28088540/multiplexed-site-specific-genome-engineering-for-overproducing-bioactive-secondary-metabolites-in-actinomycetes
#16
Lei Li, Guosong Zheng, Jun Chen, Mei Ge, Weihong Jiang, Yinhua Lu
Actinomycetes produce a large variety of pharmaceutically active compounds, yet production titers often require to be improved for discovery, development and large-scale manufacturing. Here, we describe a new technique, multiplexed site-specific genome engineering (MSGE) via the 'one integrase-multiple attB sites' concept, for the stable integration of secondary metabolite biosynthetic gene clusters (BGCs). Using MSGE, we achieved five-copy chromosomal integration of the pristinamycin II (PII) BGC in Streptomyces pristinaespiralis, resulting in the highest reported PII titers in flask and batch fermentations (2...
January 11, 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/28088418/laboratory-silo-type-and-inoculation-effects-on-nutritional-composition-fermentation-and-bacterial-and-fungal-communities-of-oat-silage
#17
J J Romero, Y Zhao, M A Balseca-Paredes, F Tiezzi, E Gutierrez-Rodriguez, M S Castillo
The objectives were to evaluate (1) the use of 2 types of experimental silos (S) to characterize whole-crop oat (Avena sativa L.) silage with or without addition of an inoculant (I), and (2) the effect of inoculation on the microbial community structure of oats ensiled using only plastic bucket silos (BKT). From each of 6 sections in a field, oats were harvested, treated (INO) or not (CON) with inoculant, packed into 19-L BKT or vacuum bags (BG), and ensiled for 217 d. The inoculant added contained Lactobacillus buchneri and Pediococcus pentosaceus (4 × 10(5) and 1 × 10(5) cfu/g of fresh oats, respectively)...
January 11, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28088410/short-communication-sodium-salicylate-negatively-affects-rumen-fermentation-in-vitro-and-in-situ
#18
A J Carpenter, C F Vargas Rodriguez, J A B Jantz, B J Bradford
Administration of sodium salicylate (SS) to cows in early lactation has a positive effect on whole-lactation milk production but a negative effect on metabolism in some cases. The objective of this trial was to determine whether SS directly affects rumen fermentation. Experiment 1 was designed to investigate the effects of direct inclusion of SS in a 24-h batch culture, and experiment 2 was designed to test the fermentative ability of rumen fluid from heifers who had received SS. In experiment 1, we combined strained and pooled rumen fluid from 3 heifers in a 2:1 ratio with McDougall's buffer, and added 150 mL of the inoculum to each flask (n = 5/treatment) with 2...
January 11, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28088403/ginkgo-fruit-extract-as-an-additive-to-modify-rumen-microbiota-and-fermentation-and-to-mitigate-methane-production
#19
S Oh, R Shintani, S Koike, Y Kobayashi
Ginkgo fruit, an unused byproduct of the ginkgo nut industry, contains antimicrobial compounds known as anacardic acids. Two major cultivars of ginkgo, Kyuju (K) and Tokuro (T), were evaluated for their potential as a feed additive for ruminants. In batch culture, we incubated a mixture of hay and concentrate in diluted rumen fluid with or without 1.6% (fruit equivalent) ginkgo fruit extract. We conducted another series of batch culture studies to determine the dose response of fermentation. We also conducted continuous culture using the rumen simulation technique (RUSITEC) with cultivar K and carried out a pure culture study to monitor the sensitivity of 17 representative rumen bacterial species to ginkgo extract and component phenolics...
January 11, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28088260/korean-chungtaejeon-tea-extract-attenuates-body-weight-gain-in-c57bl-6j-lep-ob-ob-mice-and-regulates-adipogenesis-and-lipolysis-in-3t3-l1-adipocytes
#20
Bhesh Raj Sharma, Dong Wook Kim, Dong Young Rhyu
OBJECTIVE: Traditional Korean Chungtaejeon (CTJ) tea is a type of fermented tea, which has received increasing attention in recent years because of its purported health benefits. The present study was designed to investigate the effect and mechanism of CTJ tea extract on body weight gain using C57BL/6J-Lep ob/ob mice and 3T3-L1 adipocytes, respectively. METHODS: The effects of CTJ on cell viability, lipid accumulation, and expression of protein and mRNA were measured in 3T3-L1 adipocytes by using 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide, oil red O staining, Western blotting, and reverse transcriptase-polymerase chain reaction analyses...
January 2017: Journal of Integrative Medicine
keyword
keyword
19395
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"