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https://www.readbyqxmd.com/read/28634799/assessment-of-heat-inactivated-marine-aspergillus-flavus-as-a-novel-biosorbent-for-removal-of-cd-ii-hg-ii-and-pb-ii-from-water
#1
Mohamed E Mahmoud, Gehan M El Zokm, Aida E M Farag, Mohamed S Abdelwahab
A novel marine fungus was isolated and classified as Aspergillus flavus strain EGY11. The heat-inactivated form of isolated Aspergillus flavus was investigated and evaluated as a new eco-friendly and highly efficient biosorbent for removal of toxic heavy metals such as Cd(II), Hg(II), and Pb(II) from aqueous solutions. The SEM morphological studies of biosorbent-loaded metal ions confirmed their direct binding on the surface of heat-inactivated Aspergillus flavus. The metal biosorption capacity values were determined and optimized by the batch technique in the presence of various experimental controlling factors such as pH, contact time, biosorbent dosage, initial metal ion concentration, and coexisting species...
June 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28634795/high-toxicity-of-camphene-and-%C3%AE-elemene-from-wedelia-prostrata-essential-oil-against-larvae-of-spodoptera-litura-lepidoptera-noctuidae
#2
Giovanni Benelli, Marimuthu Govindarajan, Mohamad S AlSalhi, Sandhanasamy Devanesan, Filippo Maggi
The development of eco-friendly biopesticides in the fight against agricultural pests is an important challenge nowadays. The essential oil of Wedelia prostrata Hemsl. is known for its multipurpose biological activities in Chinese folk medicine. However, limited efforts attempted to understand the potential insecticidal activity of its main individual constituents and related mechanism of action. In this research, we investigated the insecticidal activity of W. prostrata against the crop pest Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae)...
June 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28634124/cell-disruption-and-lipid-extraction-for-microalgal-biorefineries-a-review
#3
REVIEW
Soo Youn Lee, Jun Muk Cho, Yong Keun Chang, You-Kwan Oh
The microalgae-based biorefinement process has attracted much attention from academic and industrial researchers attracted to its biofuel, food and nutraceutical applications. In this paper, recent developments in cell-disruption and lipid-extraction methods, focusing on four biotechnologically important microalgal species (namely, Chlamydomonas, Haematococcus, Chlorella, and Nannochloropsis spp.), are reviewed. The structural diversity and rigidity of microalgal cell walls complicate the development of efficient downstream processing methods for cell-disruption and subsequent recovery of intracellular lipid and pigment components...
June 12, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28633194/moving-forward-in-circles-challenges-and-opportunities-in-modelling-population-cycles
#4
REVIEW
Frédéric Barraquand, Stilianos Louca, Karen C Abbott, Christina A Cobbold, Flora Cordoleani, Donald L DeAngelis, Bret D Elderd, Jeremy W Fox, Priscilla Greenwood, Frank M Hilker, Dennis L Murray, Christopher R Stieha, Rachel A Taylor, Kelsey Vitense, Gail S K Wolkowicz, Rebecca C Tyson
Population cycling is a widespread phenomenon, observed across a multitude of taxa in both laboratory and natural conditions. Historically, the theory associated with population cycles was tightly linked to pairwise consumer-resource interactions and studied via deterministic models, but current empirical and theoretical research reveals a much richer basis for ecological cycles. Stochasticity and seasonality can modulate or create cyclic behaviour in non-intuitive ways, the high-dimensionality in ecological systems can profoundly influence cycling, and so can demographic structure and eco-evolutionary dynamics...
June 20, 2017: Ecology Letters
https://www.readbyqxmd.com/read/28631618/exhaled-carbon-monoxide-is-correlated-with-ischemia-reperfusion-injuries-during-ex-vivo-lung-perfusion-in-pigs
#5
Maxime Maignan, Stéphane Gennai, Guillaume Debaty, Daniele Romanini, Marie Hélène Schmidt, Vivien Brenckmann, Angélique Brouta, Irène Ventrillard, Raphael Briot
Measurement of exhaled carbon monoxide (eCO) might help in the selection of lung grafts during ex vivo lung perfusion since its endogenous production is increased under ischemia reperfusion. The objective of this study was to measure eCO variations depending on the extent of lung ischemia reperfusion injuries. Using a porcine model and a laser spectrometer instrument, eCO was measured during ex vivo lung perfusion. eCO was compared after 30 min (D0) or 24 h (D1) of cold ischemia. The ability of eCO to distinguish lungs deemed suitable for transplantation was evaluated...
June 20, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28631264/targeted-use-of-leds-in-improvement-of-production-efficiency-through-phytochemical-enrichment
#6
REVIEW
E Taulavuori, K Taulavuori, J K Holopainen, R Julkunen-Tiitto, C Acar, I Dincer
Based on available literature, ecology and economy of LED (light emitting diode) lights in plant foods production were assessed and compared to HPS (high pressure sodium) and CFL (compact fluorescent light) lamps. The assessment summarises that LEDs are superior compared to other lamp types. LEDs are ideal in luminous efficiency, life span and electricity usage. Mercury, carbon dioxide and heat emissions are also lowest in comparison to HPS and CFL lamps. This indicates that LEDs are indeed economic and eco-friendly lighting devices...
June 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28629972/characterization-of-dioxygenases-and-biosurfactants-produced-by-crude-oil-degrading-soil-bacteria
#7
Santhakumar Muthukamalam, Sivalingam Sivagangavathi, Dharmapal Dhrishya, Sadras Sudha Rani
Role of microbes in bioremediation of oil spills has become inevitable owing to their eco friendly nature. This study focused on the isolation and characterization of bacterial strains with superior oil degrading potential from crude-oil contaminated soil. Three such bacterial strains were selected and subsequently identified by 16S rRNA gene sequence analysis as Corynebacterium aurimucosum, Acinetobacter baumannii and Microbacterium hydrocarbonoxydans respectively. The specific activity of catechol 1,2 dioxygenase (C12O) and catechol 2,3 dioxygenase (C23O) was determined in these three strains wherein the activity of C12O was more than that of C23O...
June 3, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28628882/effective-biotransformation-and-detoxification-of-anthraquinone-dye-reactive-blue-4-by-using-aerobic-bacterial-granules
#8
Ashvini U Chaudhari, Dhiraj Paul, Dhiraj Dhotre, Kisan M Kodam
Treatment of textile wastewater containing anthraquinone dye is quite a huge challenge due to its complex aromatic structure and toxicity. Present study deals with the degradation and detoxification of anthraquinone dye reactive blue 4 using aerobic bacterial granules. Bacterial granules effectively decolorized reactive blue 4 at wide range of pH (4.0-11.0) and temperature (20-55 °C) as well as decolorized and tolerated high concentration of reactive blue 4 dye upto 1000 mg l(-1) with Vmax 6.16 ± 0...
June 3, 2017: Water Research
https://www.readbyqxmd.com/read/28628019/-study-of-lipids-of-the-fruits-of-usual-hazel-nut-corylus-avellana-l-growing-in-georgia
#9
B Kikalishvili, N Gorgaslidze, D Zurabashvili, Ts Sulakvelidze, M Malania, D Turabelidze
The aim of this investigation was the study of lipids from the fruits of usual hazel-nut Corylus avellana L, growing in Georgia. Ripe fruits was collected in the West Georgia, just in Imereti. From the powdered fruits was obtained the sums of neutral and pollar lipids. Qualitatively there were established classes entered in them. By using High performance liquid chromatography qualitatively and quantitatively were identified ten fatty acids, which time of deduction hesitate from 4,01 min to 13,00 min. By the analyses there were determined unsaturated fatty acids C12:0 to C24:0...
May 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28627893/green-and-facile-esterification-procedure-leading-to-crystalline-functionalized-graphite-oxide
#10
Maria Rosaria Acocella, Luciana D'Urso, Mario Maggio, Roberto Avolio, Maria Emanuela Errico, Gaetano Guerra
A simple and eco-friendly procedure of esterification of graphite oxide (GO), which uses acetic anhydride as model reagent and ethyl acetate as green solvent, is reported. The procedure leads to high functionalization degrees (at least up to 4.5 mol% of acetyl groups, referred to graphitic C atoms) and it is much more effective than the literature one based on pure acetic anhydride. Surprisingly, our acetylation procedure does not destroy or reduce GO crystallinity but, irrespective of a substantial increase of distance between GO layers (from 0...
June 19, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28626119/eco-pharma-of-approved-drug-focused-on-mitochondria-fission
#11
Tsukasa Shimauchi, Akiyuki Nishimura, Tatsuya Ishikawa, Motohiro Nishida
No abstract text is available yet for this article.
2017: Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica
https://www.readbyqxmd.com/read/28624218/targeted-multifunctional-lipid-eco-plasmid-dna-nanoparticles-as-efficient-non-viral-gene-therapy-for-leber-s-congenital-amaurosis
#12
Da Sun, Bhubanananda Sahu, Songqi Gao, Rebecca M Schur, Amita M Vaidya, Akiko Maeda, Krzysztof Palczewski, Zheng-Rong Lu
Development of a gene delivery system with high efficiency and a good safety profile is essential for successful gene therapy. Here we developed a targeted non-viral delivery system using a multifunctional lipid ECO for treating Leber's congenital amaurosis type 2 (LCA2) and tested this in a mouse model. ECO formed stable nanoparticles with plasmid DNA (pDNA) at a low amine to phosphate (N/P) ratio and mediated high gene transfection efficiency in ARPE-19 cells because of their intrinsic properties of pH-sensitive amphiphilic endosomal escape and reductive cytosolic release (PERC)...
June 16, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28624079/effect-of-the-state-of-water-and-relative-humidity-on-ageing-of-pla-films
#13
J R Rocca-Smith, N Chau, D Champion, C-H Brachais, E Marcuzzo, A Sensidoni, F Piasente, T Karbowiak, F Debeaufort
Various types of food are now commercialized in packaging materials based on poly(lactic acid) (PLA) due to its eco-friendly nature. However, one of the main limitations related to PLA is its reactivity with water. For food applications, it is of critical importance to better understand the hydrolysis of PLA driven by water molecules either in liquid or in vapour state. This work focuses on the modifications of PLA induced by water when simulating contact with semi-dry foods (aw≈0.5), high moisture foods (aw≈1) and liquid foods (aw≈1)...
December 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28623821/green-biosynthesis-of-magnetic-iron-oxide-fe3o4-nanoparticles-using-the-aqueous-extracts-of-food-processing-wastes-under-photo-catalyzed-condition-and-investigation-of-their-antimicrobial-and-antioxidant-activity
#14
Jayanta Kumar Patra, Kwang-Hyun Baek
In this study, a simple, rapid, and eco-friendly green method was introduced to synthesize magnetite iron oxide nanoparticles (Fe3O4 NPs) using the aqueous extracts of two food processing wastes, namely silky hairs of corn (Zea mays L.) and outer leaves of Chinese cabbage (Brassica rapa L. subsp. pekinensis). The boiled solutions of silky hairs (MH) and outer leaves of Chinese cabbage (CCP) were used to synthesize Fe3O4 NPs under photo exposed condition. The MH-FeNPs and CCP-FeNPs synthesized via green route were characterized by UV-Vis spectroscopy, field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), differential thermogravimetric (TG/DTG) analysis, and vibrating sample magnetometer (VSM) analysis...
June 8, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28623655/the-thin-layer-microchromatography-%C3%AE-tlc-and-tlc-fid-technique-as-a-new-methodology-in-the-study-of-lubricating-oils
#15
Paulina Nowak, Judyta Kosińska, Marta Glinka, Marian Kamiński
This paper concerns the possibility of using TLC coupled with a flame ionization detector (FID) and micro-TLC (μTLC) asprecursors for microfluidized devices of analytical techniques to identify and determine the presence and content of the petroleum/vegetable oil base in the lubricating oils applied in cutting devices (chainsaws). This research is related to the problem of ensuring, in compliance with the requirements of environmental protection, a sufficient level of biodegradability of lubricating oils emitted to the environment during operation of equipment lubricated with these oils...
June 16, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28623565/the-novel-oleaginous-bacterium-sphingomonas-sp-egy1-dsm-29616-a-value-added-platform-for-renewable-biodiesel
#16
Nehad N Amer, Yasser Elbahloul, Amira M Embaby, Ahmed Hussein
Oleaginous microorganisms are regarded as efficient, renewable cell factories for lipid biosynthesis, a biodiesel precursor, to overwhelm the cosmopolitan energy crisis with affordable investment capital costs. Present research highlights production and characterization of lipids by a newly isolated oleaginous bacterium, Sphingomonas sp. EGY1 DSM 29616 through an eco-friendly approach. Only sweet whey [42.1% (v/v)] in tap water was efficiently used as a growth medium and lipid production medium to encourage cell growth and trigger lipid accumulation simultaneously...
July 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28623504/biosorption-of-chromium-vi-from-aqueous-solutions-and-ann-modelling
#17
Soma Nag, Abhijit Mondal, Nirjhar Bar, Sudip Kumar Das
The use of sustainable, green and biodegradable natural wastes for Cr(VI) detoxification from the contaminated wastewater is considered as a challenging issue. The present research is aimed to assess the effectiveness of seven different natural biomaterials, such as jackfruit leaf, mango leaf, onion peel, garlic peel, bamboo leaf, acid treated rubber leaf and coconut shell powder, for Cr(VI) eradication from aqueous solution by biosorption process. Characterizations were conducted using SEM, BET and FTIR spectroscopy...
June 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28623493/bioremediation-of-palm-industry-wastes-using-vermicomposting-technology-its-environmental-application-as-green-fertilizer
#18
Parveen Fatemeh Rupani, Asha Embrandiri, Mahamd Hakimi Ibrahim, Mohammad Shahadat, Sune Balle Hansen, Nur Naha Abu Mansor
Several technologies are being applied for treatment of palm oil mill wastes. Among them, the biological treatments (vermicomposting) have widely been recognized as one of the most efficient and eco-friendly methods for converting organic waste materials into valuable products. The present study focuses on vermicomposting of acidic palm oil mill effluent (POME) mixed with the palm pressed fibre (PPF) which are found difficult to decompose in the environment. The industrial waste (POME) was vermicomposted using Lumbricus rubellus under laboratory conditions for a period of 45 days...
July 2017: 3 Biotech
https://www.readbyqxmd.com/read/28622618/recovery-and-purification-of-limonin-from-pummelo-citrus-grandis-peel-using-water-extraction-ammonium-sulfate-precipitation-and-resin-adsorption
#19
Yuan Fan Yang, Liang Zheng Zhang, Xi Ping Du, Su Fang Zhang, Li Jun Li, Ze Dong Jiang, Li Ming Wu, Hui Ni, Feng Chen
Limonin is a bioactive compound that is traditionally extracted from citrus seeds using organic solvents or alkaline/metal ion solutions. In the present study, pummelo [Citrus grandis] peel was investigated for limonin preparation using a novel process consisting of water extraction, ammonium sulfate precipitation and resin adsorption. The pummelo peel was determined to have 4.7mg/g limonin, which could be extracted by water and further recovered by ammonium sulfate precipitation with a yield of 2.4mg/g, which was similar to that of traditional process using ethanol extraction and vacuumed evaporation...
June 3, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28622553/toxic-responses-of-cytochrome-p450-sub-enzyme-activities-to-heavy-metals-exposure-in-soil-and-correlation-with-their-bioaccumulation-in-eisenia-fetida
#20
Xiufeng Cao, Ran Bi, Yufang Song
The dose- and time- dependent responses of cytochrome P450 (CYP) sub-enzyme activities to heavy metals in soil, and the relationships between biomarker responses and metal bioaccumulation in Eisenia fetida were evaluated. Earthworms were exposed to soils spiked with increasing doses of Cd, Cu, Pb or Zn for 21 d. Results demonstrated that EROD and CYP3A4 activities responded significantly with increasing dose and exposure duration. EROD activity significantly (P < 0.05) correlated with CYP3A4 activity exposed to Pb and Cu...
June 13, 2017: Ecotoxicology and Environmental Safety
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