keyword
MENU ▼
Read by QxMD icon Read
search

lactic acid bacteria

keyword
https://www.readbyqxmd.com/read/28448847/lactic-acid-fermentation-of-human-urine-to-improve-its-fertilizing-value-and-reduce-odour-emissions
#1
N Andreev, M Ronteltap, B Boincean, M Wernli, E Zubcov, N Bagrin, N Borodin, P N L Lens
During storage of urine, urea is biologically decomposed to ammonia, which can be lost through volatilization and in turn causes significant unpleasant smell. In response, lactic acid fermentation of urine is a cost-effective technique to decrease nitrogen volatilization and reduce odour emissions. Fresh urine (pH = 5.2-5.3 and NH4(+)-N = 1.2-1.3 g L(-1)) was lacto-fermented for 36 days in closed glass jars with a lactic acid bacterial inoculum from sauerkraut juice and compared to untreated, stored urine...
April 24, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28444600/antibiotic-sensitivity-pattern-of-indigenous-lactobacilli-isolated-from-curd-and-human-milk-samples
#2
Chetan Sharma, Sachin Gulati, Nishchal Thakur, Brij Pal Singh, Sanjolly Gupta, Simranpreet Kaur, Santosh Kumar Mishra, Anil Kumar Puniya, Jatinder Pal Singh Gill, Harsh Panwar
The gut microbiota plays a vital role in host well-being and lactic acid bacteria (LAB) have gained an overwhelming attention as health promoter. This perception has evolved from traditional dairy products to a money-spinning market of probiotics. The safety of probiotics is coupled to their intended use and LAB may act as pool of antimicrobial resistance genes that could be transferred to pathogens, either in food matrix or in gastrointestinal tract, which could be detrimental to host. This study evaluated the antibiotic susceptibility patterns of LAB isolated from curd (20) and human milk (11) samples...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28444596/response-surface-design-for-accumulation-of-selenium-by-different-lactic-acid-bacteria
#3
Jingpeng Yang, Yao Li, Li Zhang, Mingtao Fan, Xinyuan Wei
The accumulation of selenium (Se) by Lactobacillus delbrueckii ssp. bulgaricus (Lb) and Streptococcus thermophilus (St) at the different cultivation conditions, including initial pH, inoculum dose (%), and temperature (°C), was investigated in this work. Se enrichment efficiency was optimized using the Design-Expert software for response surface methodology on a basis of single-factor experiment. The antioxidant activities of Se-enriched Lactic acid bacteria (LAB) were also investigated. The qualitative analysis of Se-enriched LAB was performed by FT-IR spectra...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28442158/diversity-and-evolutionary-aspects-of-mucin-binding-mucbp-domain-repeats-among-lactobacillus-plantarum-group-strains-through-comparative-genetic-analysis
#4
Sundru Manjulata Devi, Prakash M Halami
Mucin binding protein (Mub) of Lactobacillus plantarum- group (LPG) is considered as a potential marker gene due to its diversity and adherence property to host intestinal layer. We recently observed strain specific diversity in mub gene of LPG strains (n=8) and grouped them into Type I, II and III based on the insertion and/or deletion of MucBP domain repeats (Devi et al., 2016). The mub gene expression pattern noted by real-time PCR revealed 67.64 increased fold change in MTCC 9483 with four MucBP repeats...
April 12, 2017: Systematic and Applied Microbiology
https://www.readbyqxmd.com/read/28439768/discrimination-of-wine-lactic-acid-bacteria-by-raman-spectroscopy
#5
Susan B Rodriguez, Mark A Thornton, Roy J Thornton
Species of Lactobacillus, Pediococcus, Oenococcus, and Leuconostoc play an important role in winemaking, as either inoculants or contaminants. The metabolic products of these lactic acid bacteria have considerable effects on the flavor, aroma, and texture of a wine. However, analysis of a wine's microflora, especially the bacteria, is rarely done unless spoilage becomes evident, and identification at the species or strain level is uncommon as the methods required are technically difficult and expensive. In this work, we used Raman spectral fingerprints to discriminate 19 strains of Lactobacillus, Pediococcus, and Oenococcus...
April 24, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28439679/screening-lactic-acid-bacteria-strains-with-ability-to-bind-di-n-butyl-phthalate-via-turbiscan-technique
#6
Zhao Lili, Zhao Hongfei, Sana Shoukat, Zhang Xiaochen, Zhang Bolin
Di-n-butyl phthalate (DBP) is a ubiquitous environmental contaminant that poses a risk to humans. Previous work indicates that the ability of lactic acid bacteria (LAB) to bind phthalic acid esters is strain-specific. As cell suspensions of LAB strains in aqueous solution are likely to be colloidal dispersions, this study provided a technique to efficiently screen LAB strains that bind DBP via Turbiscan, which has been widely used to measure the stability of emulsions or colloidal dispersions. Eleven LAB strains belonging to Lactobacillus plantarum, Lb...
April 24, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28439489/detection-and-analysis-of-lactobacillus-paracasei-penicillin-binding-proteins-revealed-the-presence-of-cholate-sensitive-penicillin-binding-protein-3-and-an-elongated-cell-shape-in-a-cholate-sensitive-strain
#7
Masahiro Hattori, Glaezel Angelique Torres, Naoto Tanaka, Sanae Okada, Akihito Endo, Junichi Nakagawa
Penicillin-binding proteins (PBPs) are responsible for peptidoglycan synthesis. By using biotinylated ampicillin, we detected PBPs of Lactobacillus paracasei strains. Ten PBPs were identified, 7 of which had apparent molecular sizes similar to those of Escherichia coli. In the presence of cholate, strain NRIC 0625 showed an elongated shape, and its putative PBP3 showed cholate-sensitive penicillin-binding activity. Furthermore, this strain was highly sensitive to cefalexin, which is known to inhibit cell division by inactivating PBP3...
2017: Bioscience of Microbiota, Food and Health
https://www.readbyqxmd.com/read/28439299/substance-p-enhances-lactic-acid-and-tyramine-production-in-enterococcus-faecalis-v583-and-promotes-its-cytotoxic-effect-on-intestinal-caco-2-tc7-cells
#8
Kelly Biaggini, Valérie Borrel, Sabine Szunerits, Rabah Boukherroub, Awa N'Diaye, Arthur Zébré, Maryse Bonnin-Jusserand, Guillaume Duflos, Marc Feuilloley, Djamel Drider, Pierre Déchelotte, Nathalie Connil
BACKGROUND: Enterococcus faecalis, generally considered as a saprophytic bowel commensal, has recently emerged as an important nosocomial pathogen causing severe urinary tract infections, surgical wound infections, bacteremia, and bacterial endocarditis. This bacterium is capable of forming biofilms on various surfaces and its high level of antibiotic resistance contributes to its pathogenicity. The aim of this study was to evaluate the effect on E. faecalis, of Substance P (SP), an antimicrobial peptide that is produced in the gut and skin...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28438266/physiological-role-of-two-component-signal-transduction-systems-in-food-associated-lactic-acid-bacteria
#9
Vicente Monedero, Ainhoa Revilla-Guarinos, Manuel Zúñiga
Two-component systems (TCSs) are widespread signal transduction pathways mainly found in bacteria where they play a major role in adaptation to changing environmental conditions. TCSs generally consist of sensor histidine kinases that autophosphorylate in response to a specific stimulus and subsequently transfer the phosphate group to their cognate response regulators thus modulating their activity, usually as transcriptional regulators. In this review we present the current knowledge on the physiological role of TCSs in species of the families Lactobacillaceae and Leuconostocaceae of the group of lactic acid bacteria (LAB)...
2017: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/28438014/characterization-of-a-glutamate-decarboxylase-gad-from-enterococcus-avium-m5-isolated-from-jeotgal-a-fermented-korean-sea-food
#10
Kang Wook Lee, Jae Min Shim, Zhuang Yao, Jeong A Kim, Hyun-Jin Kim, Jeong Hwan Kim
To develop starters for the production of functional foods or materials, lactic acid bacteria producing γ-aminobutyric acid (GABA) were screened from jeotgals, Korean fermented sea foods. One isolate producing high amount of GABA from monosodium L-glutamate (MSG) was identified as Enterococcus avium by 16S rRNA gene sequencing. E. avium M5 produced 18.47 ± 1.26 mg/ml GABA when incubated for 48 h at 37°C in MRS broth with MSG (3%, w/v). A gadB gene encoding glutamate decarboxylase (GAD) was cloned and overexpressed in E...
April 25, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28434721/characterization-of-probiotic-bacteria-involved-in-fermented-milk-processing-enriched-with-folic-acid
#11
Zhen Wu, Jing Wu, Pei Cao, Yifeng Jin, Daodong Pan, Xiaoqun Zeng, Yuxing Guo
Yogurt products fermented with probiotic bacteria are a consumer trend and a challenge for functional food development. So far, limited research has focused on the behavior of the various probiotic strains used in milk fermentation. In the present study, we characterized folic acid production and the sensory and textural characteristics of yogurt products fermented with probiotic bacteria. Yogurt fermented with Lactobacillus plantarum had improved nutrient content and sensory and textural characteristics, but the presence of L...
April 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28434154/protective-effects-of-cell-free-supernatant-and-live-lactic-acid-bacteria-isolated-from-thai-pigs-against-a-pandemic-strain-of-porcine-epidemic-diarrhea-virus
#12
Wandee Sirichokchatchawan, Gun Temeeyasen, Dachrit Nilubol, Nuvee Prapasarakul
Porcine epidemic diarrhea virus (PEDV) is a coronavirus which causes severe diarrhea and fatal dehydration in piglets. In general, probiotic supplements could enhance recovery and protect piglets against enteric pathogens. Seven local lactic acid bacteria (LAB), (Ent. faecium 79N and 40N, Lact. plantarum 22F, 25F and 31F, Ped. acidilactici 72N and Ped. pentosaceus 77F) from pig feces were well-characterized as high potential probiotics. Cell-free supernatants (CFS) and live LAB were evaluated for antiviral activities by co-incubation on Vero cells and challenged with a pandemic strain of PEDV isolated from pigs in Thailand...
April 22, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28433761/a-glycoproteomic-approach-reveals-that-the-s-layer-glycoprotein-of-lactobacillus-kefiri-cidca-83111-is-o-and-n-glycosylated
#13
Gustavo J Cavallero, Mariano Malamud, Adriana C Casabuono, M de Los Ángeles Serradell, Alicia S Couto
In Gram-positive bacteria, such as lactic acid bacteria, general glycosylation systems have not been documented so far. The aim of this work was to characterize in detail the glycosylation of the S-layer protein of Lactobacillus kefiri CIDCA 83111. A reductive β-elimination treatment followed by anion exchange high performance liquid chromatography analysis was useful to characterize the O-glycosidic structures. MALDI-TOF mass spectrometry analysis confirmed the presence of oligosaccharides bearing from 5 to 8 glucose units carrying galacturonic acid...
April 19, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28433723/elimination-of-the-cryptic-plasmid-in-leuconostoc-citreum-by-crispr-cas9-system
#14
Ye-Ji Jang, Seung-Oh Seo, Seul-Ah Kim, Ling Li, Tae-Jip Kim, Sun Chang Kim, Yong-Su Jin, Nam Soo Han
Leuconostoc spp. are important lactic acid bacteria for the fermentation of foods. In particular, L. citreum strains isolated from various foods have been used as host strains for genetic and metabolic engineering studies. In order to develop a food-grade genetic engineering system, L. citreum CB2567 was isolated from Kimchi. However, the isolated bacterium contained a cryptic plasmid which was difficult to eliminate. As the existence of the plasmid might hinder strain engineering, we eliminated the plasmid using an RNA-guided DNA endonuclease CRISPR/Cas9 system...
April 19, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28432440/application-of-recombinant-pediococcus-acidilactici-bd16-fcs-ech-for-bioconversion-of-agrowaste-to-vanillin
#15
Debkumar Chakraborty, Ammaiyappan Selvam, Baljinder Kaur, Jonathan Woon Chung Wong, Obulisamy Parthiba Karthikeyan
Biotechnological production of vanillin is gaining momentum as the natural synthesis of vanillin that is very expensive. Ferulic acid (FA), a costly compound, is used as the substrate to produce vanillin biotechnologically and the making process is still expensive. Therefore, this study investigated the practical use of an agrobiomass waste, rice bran, and provides the first evidence of a cost-effective production of vanillin within 24 h of incubation using recombinant Pediococcus acidilactici BD16 (fcs (+)/ech (+))...
April 21, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28431310/characterization-of-bacterial-communities-of-donkey-milk-by-high-throughput-sequencing
#16
Maria de Los Dolores Soto Del Rio, Alessandra Dalmasso, Tiziana Civera, Maria Teresa Bottero
The interest in donkey milk (DM) is growing because of its functional properties and nutritional value, especially for children with allergies and food intolerances. However, most of the available reports of DM microbiota are based on culture-dependent methods to investigate food safety issues and the presence of lactic acid bacteria (LAB). The aim of this study was to determine the composition of DM bacterial communities using a high-throughput sequencing (HTS) approach. Bulk milk samples from Italian donkey dairy farms from two consecutive years were analysed using the MiSeq Illumina platform...
March 30, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28430940/unravelling-microbial-ecology-of-industrial-scale-kombucha-fermentations-by-metabarcoding-and-culture-based-methods
#17
M Coton, A Pawtowski, B Taminiau, G Burgaud, F Deniel, L Coulloume-Labarthe, P A Fall, G Daube, E Coton
Kombucha, historically an Asian tea-based fermented drink, has recently become trendy in Western countries. Producers claim it bears health-enhancing properties that may come from the tea or metabolites produced by its microbiome. Despite its long history of production, microbial richness and dynamics have not been fully unravelled, especially at an industrial scale. Moreover, the impact of tea type (green or black) on microbial ecology was not studied. Here, a study compared microbial communities from industrial scale black and green tea fermentations, still traditionally carried out by a microbial biofilm, using culture-dependent and metabarcoding approaches...
April 18, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28428300/draft-genome-sequence-of-enterococcus-casseliflavus-pavet15-obtained-from-the-oviduct-infection-of-the-cattle-tick-rhipicephalus-microplus-in-jiutepec-morelos-mexico
#18
R Cossío-Bayúgar, E Miranda-Miranda, C A Arreguín-Pérez, L Lozano, D Peréz de la Rosa, M K Rocha-Martínez, M A Bravo-Díaz, B Sachman-Ruiz
Enterococcus spp. are Gram-positive lactic acid-producing bacteria found in the intestinal tracts of animals, like mammals, birds, and arthropods. Enterococcus spp. may cause oportunistic infections in vertebrate and invertebrate hosts. We report here the draft genome sequence of Enterococcus casseliflavus PAVET15 containing 3,722,480 bp, with 80 contigs, an N50 of 179,476 bp, and 41.93% G+C content.
April 20, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28423881/effects-of-calcium-propionate-on-the-fermentation-quality-and-aerobic-stability-of-alfalfa-silage
#19
Zhi Hao Dong, Xian Jun Yuan, Ai You Wen, Seare T Desta, Tao Shao
Objective: To assess the potency of calcium propionate used as silage additive, an experiment was carried out to evaluate the effect of calcium propionate on the nitrogen transformation, fermentation quality and aerobic stability of alfalfa silages. Methods: Alfalfa was ensiled with four levels of calcium propionate (CAP; 5, 10, 15 and 20 g kg-1 of fresh weigh) in laboratory silos for 30 days. After opening, the silages were analyzed for the chemical and microbiological characteristics, and subjected to an aerobic stability test...
March 25, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28419329/effects-of-the-inclusion-of-a-bacillus-direct-fed-microbial-on-performance-parameters-bone-quality-recovered-gut-microflora-and-intestinal-morphology-in-broilers-consuming-a-grower-diet-containing-corn-distillers-dried-grains-with-solubles
#20
J D Latorre, X Hernandez-Velasco, J L Vicente, R Wolfenden, B M Hargis, G Tellez
Distillers dried grains with solubles (DDGS) have increasingly been used in poultry diets as a consequence of rising grain costs. Some, but not all, sources of DDGS have a variable compositional value, and a high inclusion of this by-product could be considered a risk factor for presentation of enteric diseases. Presently, 2 experiments were conducted using a starter corn-soybean diet (zero to 7 d) and a corn-DDGS-soybean grower diet (8 to 28 d) with or without inclusion of a Bacillus-direct-fed microbial (DFM)...
April 17, 2017: Poultry Science
keyword
keyword
35713
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"