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https://www.readbyqxmd.com/read/29433435/growth-and-metabolic-characteristics-of-oleaginous-microalgal-isolates-from-nilgiri-biosphere-reserve-of-india
#1
Kalaiselvi Thangavel, Preethi Radha Krishnan, Srimeena Nagaiah, Senthil Kuppusamy, Senthil Chinnasamy, Jude Sudhagar Rajadorai, Gopal Nellaiappan Olaganathan, Balachandar Dananjeyan
BACKGROUND: Renewable energy for sustainable development is a subject of a worldwide debate since continuous utilization of non-renewable energy sources has a drastic impact on the environment and economy; a search for alternative energy resources is indispensable. Microalgae are promising and potential alternate energy resources for biodiesel production. Thus, our efforts were focused on surveying the natural diversity of microalgae for the production of biodiesel. The present study aimed at identification, isolation, and characterization of oleaginous microalgae from shola forests of Nilgiri Biosphere Reserve (NBR), the biodiversity hot spot of India, where the microalgal diversity has not yet been systematically investigated...
January 3, 2018: BMC Microbiology
https://www.readbyqxmd.com/read/29413935/microbial-lipid-production-by-cryptococcus-curvatus-from-vegetable-waste-hydrolysate
#2
Sulogna Chatterjee, S Venkata Mohan
This study primarily evaluated the effect of pre-treatment on release of reducing sugars (RS) from vegetable waste (VW). Different acids and alkalis viz., H2SO4, HCl, HNO3, H3PO4, NaOH and KOH were evaluated at varied concentration (0.5, 1.0, 1.5 and 2.0%) for pretreatment. The highest RS yield of 472.36 ± 1.89 g/l and 439.13 ± 1.04 g/l was obtained with 1.5% H2SO4 and 2% HCl respectively. Secondly, pre-treated vegetable waste hydrolysates (PT-VWH) were evaluated for yeast fermentation using Cryptococcus curvatus MTCC 2698 for lipid production...
January 31, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29385891/biosynthesis-of-silver-nanoparticles-using-sida-acuta-extract-for-anti-microbial-actions-and-corrosion-inhibition-potential
#3
Muhammad Idrees, Saima Batool, Tanzila Kalsoom, Sadaf Raina, Hafiz Muhammad Adeel Sharif, Summera Yasmeen
Nanotechnology exhibits a unique multidisciplinary area and gained fame and interests for researchers. Nanoparticles produced via physical and chemical methods effects ecosystem drastically. Researches trying to implement eco-friendly ways to overcome this issue. Green synthesis is a most attractive and charming technique inexpensive, simple and safe for environment. This study aimed to explore the anti-bacterial actions of as-synthesized silver nanoparticles (Ag-NPs) against Escherichia coli, Staphylococcus aureus and Streptococcus faecalis...
February 1, 2018: Environmental Technology
https://www.readbyqxmd.com/read/29370982/production-of-lutein-and-polyunsaturated-fatty-acids-by-the-acidophilic-eukaryotic-microalga-coccomyxa-onubensis-under-abiotic-stress-by-salt-or-ultraviolet-light
#4
Elisabeth Bermejo, María C Ruiz-Domínguez, María Cuaresma, Isabel Vaquero, Adrian Ramos-Merchante, José M Vega, Carlos Vílchez, Inés Garbayo
In this study, the effect of abiotic stress on the acidophilic eukaryotic microalga, Coccomyxa onubensis, was analyzed for the production of lutein and PUFAs (polyunsaturated fatty acids). It grows autotrophically at a pH of 2.5. It showed a growth rate of 0.30 d-1, and produced approximately 122.50 mg.L-1.d-1 biomass, containing lipids (300.39 mg g-1dw), lutein (5.30 mg g-1dw), and β-carotene (1.20 mg g-1dw). The fatty acid methyl ester (FAME) fraction was 89.70 mg g-1dw with abundant palmitic acid (28...
January 20, 2018: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/29367147/mixed-microalgae-consortia-growth-under-higher-concentration-of-co2-from-unfiltered-coal-fired-flue-gas-fatty-acid-profiling-and-biodiesel-production
#5
Ambreen Aslam, Skye R Thomas-Hall, Maleeha Manzoor, Faiza Jabeen, Munawar Iqbal, Qamar Uz Zaman, Peer M Schenk, M Asif Tahir
Biodiesel is produced by transesterification of fatty acid methyl esters (FAME) from oleaginous microalgae feedstock. Biodiesel fuel properties were studied and compared with biodiesel standards. Qualitative analysis of FAME was done while cultivating mixed microalgae consortia under three concentrations of coal fired flue gas (1%, 3.0% and 5.5% CO2). Under 1% CO2 concentration (flue gas), the FAME content was 280.3 μg/mL, whereas the lipid content was 14.03 μg/mL/D (day). Both FAMEs and lipid contents were low at other CO2 concentrations (3...
January 11, 2018: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29350912/low-temperature-derived-3d-hexagonal-crystalline-fe3o4-nanoplates-for-water-purification
#6
Xiaoyi Wang, Yulong Liao, Huaiwu Zhang, Tianlong Wen, Dainan Zhang, Yuanxun Li, Mingzhen Liu, Faming Li, Qiye Wen, Zhiyong Zhong, Xingtian Yin
Fe3O4 nanoplates were fabricated by an anodic oxidation process and a subsequent water assisted crystallization process at low temperature, which was found to be very efficient and environmentally friendly. The as-prepared Fe3O4 nanoplates have hexagonal outlines with a thickness of about 20 nm. Tremendous grooves were distributed on the entire surfaces of the nanoplates, making the two-dimension nanoplates have a unique 3D morphology. Transmission electron microscopy results confirmed that the single-crystalline nature of the nanoplates was well maintained...
January 19, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29332994/application-of-the-advanced-distillation-curve-method-to-the-comparison-of-diesel-fuel-oxygenates-2-5-7-10-tetraoxaundecane-tou-2-4-7-9-tetraoxadecane-tod-and-ethanol-fatty-acid-methyl-ester-fame-mixtures
#7
Jessica L Burger, Tara M Lovestead, Mark LaFollette, Thomas J Bruno
Although they are amongst the most efficient engine types, compression-ignition engines have difficulties achieving acceptable particulate emission and NOx formation. Indeed, catalytic after-treatment of diesel exhaust has become common and current efforts to reformulate diesel fuels have concentrated on the incorporation of oxygenates into the fuel. One of the best ways to characterize changes to a fuel upon the addition of oxygenates is to examine the volatility of the fuel mixture. In this paper, we present the volatility, as measured by the advanced distillation curve method, of a prototype diesel fuel with novel diesel fuel oxygenates: 2,5,7,10-tetraoxaundecane (TOU), 2,4,7,9-tetraoxadecane (TOD), and ethanol/fatty acid methyl ester (FAME) mixtures...
August 17, 2017: Energy & Fuels: An American Chemical Society Journal
https://www.readbyqxmd.com/read/29322108/production-of-biodiesel-by-enzymatic-transesterification-of-waste-sardine-oil-and-evaluation-of-its-engine-performance
#8
A Arumugam, V Ponnusami
Waste sardine oil, a byproduct of fish industry, was employed as a low cost feedstock for biodiesel production. It has relatively high free fatty acid (FFA) content (32 mg KOH/g of oil). Lipase enzyme immobilized on activated carbon was used as the catalyst for the transesterification reaction. Process variables viz. reaction temperature, water content and oil to methanol molar ratio were optimized. Optimum methanol to oil molar ratio, water content and temperature were found to be 9:1, 10 v/v% and 30 °C respectively...
December 2017: Heliyon
https://www.readbyqxmd.com/read/29305397/physical-activity-implementation-study-in-community-dwelling-adults-phisical-study-protocol
#9
Hannah Carpenter, Sarah Audsley, Carol Coupland, John Gladman, Denise Kendrick, Natasher Lafond, Philippa Logan, Dawn A Skelton, Clare Timblin, Stephen Timmons, Derek Ward, Elizabeth Orton
BACKGROUND: Falls in older people are a leading causes of unintentional injury. Due to an ageing population, injuries are likely to increase unless more is done to reduce older people's falls risk. In clinical trials, the Falls Management Exercise (FaME) programme has reduced the rate of falls and falls-related injuries in community-dwelling older adults. However, the commissioning of FaME is inconsistent across England, potentially due to a lack of evidence that FaME can be delivered effectively in a 'real world' setting...
January 5, 2018: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/29277474/an-evidence-of-c16-fatty-acid-methyl-esters-extracted-from-microalga-for-effective-antimicrobial-and-antioxidant-property
#10
MubarakAli Davoodbasha, Baldev Edachery, Thajuddin Nooruddin, Sang-Yul Lee, Jung-Wan Kim
Fatty acid methyl esters (FAME) derived from lipids of microalgae is known to have wide bio-functional materials including antimicrobials. FAME is an ideal super-curator and superior anti-pathogenic. The present study evaluated the efficiency of FAME extracted from microalgae Scenedesmus intermedius as an antimicrobial agent against Gram positive (Staphylococcus aureus, Streptococcus mutans, and Bacillus cereus) Gram negative (Escherichia coli and Pseudomonas aeruginosa) bacteria and Fungi (Aspergillus parasiticus and Candida albicans)...
December 22, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29274519/evaluation-of-heterotrophic-and-mixotrophic-cultivation-of-novel-micractinium-sp-me05-on-vinasse-and-its-scale-up-for-biodiesel-production
#11
Iskin Kose Engin, Deniz Cekmecelioglu, Ayse Meral Yücel, Huseyin Avni Oktem
Direct disposal of vinasse, a by-product of molasses fermentation plants, threatens environmental health. This study investigated the usage of vinasse as a nutrient source for the heterotrophic and mixotrophic cultivation of novel Micractinium sp. ME05. The 500-mL flask experiments resulted in higher biomass productivities under mixotrophic conditions (0.16 ± 0.01 g L-1 day1) than the heterotrophic conditions (0.13 ± 0.01 g L-1 day1). A 1.7-fold increase in biomass productivity was achieved by scaling up from 500-mL flasks (0...
December 9, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29260378/%C3%AF-3-fatty-acid-synergized-novel-nanoemulsifying-system-for-rosuvastatin-delivery-in-vitro-and-in-vivo-evaluation
#12
Chandra Bhushan Tripathi, Neha Gupta, Pranesh Kumar, Ashok Kumar Singh, Vinit Raj, Poonam Parashar, Mahendra Singh, Jovita Kanoujia, Malti Arya, Shubhini A Saraf, Sudipta Saha
The present study was undertaken to improve rosuvastatin (RSV) bioavailability and pharmacological response through formation of SNES using Perilla frutescens oil as lipid carrier. The composition of oil was estimated by fatty acid methyl ester (FAME) analysis using gas chromatography. Solubility of RSV in Perilla frutescens oil and Cremophor EL was 25.0 ± 3.0 and 60.0 ± 5.0 mg/mL, respectively. Later, nanophasic maps and a central composite design were employed to determine the maximum nanoemulsion region and further optimize SNES in this study...
December 19, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/29251027/efficacy-and-safety-of-tocilizumab-with-inhibition-of-interleukin-6-in-adult-onset-still-s-disease-a-meta-analysis
#13
Yubo Ma, Meng Wu, Xu Zhang, Qing Xia, Jiajia Yang, Shengqian Xu, Faming Pan
OBJECTIVE: Tocilizumab (TCZ) is the only available biologic inhibiting interliukine-6 presently, and emerging evidences have figured that elevated serum level of interleukine-6 is a crucial link of the pathogenesis of adult-onset Still's disease (AOSD). However, evidence about the efficacy and safety of TCZ in AOSD with strong power is still scarce. Thus, this meta-analysis was conducted to synthetically assess the efficacy and safety of TCZ on AOSD. METHODS: PubMed, Web of Science, Cochrane Library, Chinese National Knowledge Infrastructure and Chinese Biological Medical Literature database were comprehensively searched up to 31 July, 2017 for the pertinent studies...
December 18, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/29250753/the-purification-and-characterization-of-lipases-from-lasiodiplodia-theobromae-and-their-immobilization-and-use-for-biodiesel-production-from-coconut-oil
#14
Balaji Venkatesagowda, Ebenezer Ponugupaty, Aneli M Barbosa-Dekker, Robert F H Dekker
The coconut kernel-associated fungus, Lasiodiplodia theobromae VBE1, was grown on coconut cake with added coconut oil as lipase inducer under solid-state fermentation conditions. The extracellular-produced lipases were purified and resulted in two enzymes: lipase A (68,000 Da)-purified 25.41-fold, recovery of 47.1%-and lipase B (32,000 Da)-purified 18.47-fold, recovery of 8.2%. Both lipases showed optimal activity at pH 8.0 and 35 °C, were activated by Ca2+, exhibited highest specificity towards coconut oil and p-nitrophenyl palmitate, and were stable in iso-octane and hexane...
December 18, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29240827/diagnostic-accuracy-research-in-glaucoma-is-still-incompletely-reported-an-application-of-standards-for-reporting-of-diagnostic-accuracy-studies-stard-2015
#15
Manuele Michelessi, Ersilia Lucenteforte, Alba Miele, Francesco Oddone, Giada Crescioli, Valeria Fameli, Daniël A Korevaar, Gianni Virgili
BACKGROUND: Research has shown a modest adherence of diagnostic test accuracy (DTA) studies in glaucoma to the Standards for Reporting of Diagnostic Accuracy Studies (STARD). We have applied the updated 30-item STARD 2015 checklist to a set of studies included in a Cochrane DTA systematic review of imaging tools for diagnosing manifest glaucoma. METHODS: Three pairs of reviewers, including one senior reviewer who assessed all studies, independently checked the adherence of each study to STARD 2015...
2017: PloS One
https://www.readbyqxmd.com/read/29217269/bacterial-and-fungal-composition-profiling-of-microbial-based-cleaning-products
#16
R M Subasinghe, A D Samarajeewa, M Meier, G Coleman, H Clouthier, J Crosthwait, A F Tayabali, R Scroggins, P S Shwed, L A Beaudette
Microbial based cleaning products (MBCPs) are a new generation of cleaning products that are gaining greater use in household, institutional, and industrial settings. Little is known about the exact microbial composition of these products because they are not identified in detail on product labels and formulations are often proprietary. To gain a better understanding of their microbial and fungal composition towards risk assessment, the cultivable microorganisms and rDNA was surveyed for microbial content in five different MBCPs manufactured and sold in North America...
December 4, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29217125/designing-a-co2-supply-strategy-for-microalgal-biodiesel-production-under-diurnal-light-in-a-cylindrical-membrane-photobioreactor
#17
Venkateswara R Naira, Debasish Das, Soumen K Maiti
A cylindrical membrane photobioreactor with high CO2 mass transfer coefficient was designed and installed under customized unidirectional lighting. Combinatorial effect of light and CO2 on the growth of Chlorella sp. FC2 IITG was studied and an optimal CO2 supply without pH control strategy was developed under diurnal light similar to sunlight (17-2000-17 µE m-2 s-1). Unprecedentedly, broad range of saturated light levels (700-1500 µE m-2 s-1), reversible photoinhibition, no pH control requirement and dark-phase growth were noticed altogether in the strain...
December 2, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29215051/a-web-based-gps-system-for-displacement-monitoring-and-failure-mechanism-analysis-of-reservoir-landslide
#18
Yuanyao Li, Jinsong Huang, Shui-Hua Jiang, Faming Huang, Zhilu Chang
It is important to monitor the displacement time series and to explore the failure mechanism of reservoir landslide for early warning. Traditionally, it is a challenge to monitor the landslide displacements real-timely and automatically. Globe Position System (GPS) is considered as the best real-time monitoring technology, however, the accuracies of the landslide displacements monitored by GPS are not assessed effectively. A web-based GPS system is developed to monitor the landslide displacements real-timely and automatically in this study...
December 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29214537/branched-chain-dicationic-ionic-liquids-for-fatty-acid-methyl-ester-assessment-by-gas-chromatography
#19
Mohsen Talebi, Rahul A Patil, Leonard M Sidisky, Alain Berthod, Daniel W Armstrong
Twelve bis- or dicationic ionic liquids (ILs) including eight based on imidazolium, a single one based on phosphonium, and three based on pyrrolidinium cationic units were prepared with the bis(trifluoromethyl sulfonyl) imide anion. The two identical cationic moieties were attached by different alkyl spacers having three or five carbons and differing alkyl substituents attached to the spacer. The SLB-IL111 column, as the most polar commercial stationary phase known, was included in the study for comparison...
December 6, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29198991/interleukin-23-receptor-polymorphism-rs10889677-a-c-in-ankylosing-spondylitis-meta-analysis-in-caucasian-and-asian-populations
#20
REVIEW
Renfang Han, Qing Xia, Shengqian Xu, Dazhi Fan, Faming Pan
BACKGROUND: The association between interleukin-23 receptor (IL23R) gene rs10889677 polymorphism and ankylosing spondylitis (AS) susceptibility was inconsistent in the recent literatures. A systematic review and meta-analysis was therefore performed. METHODS: Online electronic databases were searched for relevant studies published up to November 2017. Meta-analyses were performed for the comparisons of allele (A versus C) and multiple genetic models, including dominant, recessive, heterozygous, and homozygous models using fixed or random effects models...
November 30, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
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