Acceder

Bibliografías temáticas / Glycerol system / Artículos de revistas

Siga este enlace para ver otros tipos de publicaciones sobre el tema: Glycerol system.

Artículos de revistas sobre el tema "Glycerol system"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 12 de febrero de 2022

Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros

Elija tipo de fuente:

Consulte los 50 mejores artículos de revistas para su investigación sobre el tema "Glycerol system".

Junto a cada fuente en la lista de referencias hay un botón "Agregar a la bibliografía". Pulsa este botón, y generaremos automáticamente la referencia bibliográfica para la obra elegida en el estilo de cita que necesites: APA, MLA, Harvard, Vancouver, Chicago, etc.

También puede descargar el texto completo de la publicación académica en formato pdf y leer en línea su resumen siempre que esté disponible en los metadatos.

Explore artículos de revistas sobre una amplia variedad de disciplinas y organice su bibliografía correctamente.

1

Esteban, Jesús, Miguel Ladero, Laura Molinero y Félix García-Ochoa. "Liquid–liquid equilibria for the ternary systems DMC–methanol–glycerol, DMC–glycerol carbonate–glycerol and the quaternary system DMC–methanol–glycerol carbonate–glycerol at catalytic reacting temperatures". Chemical Engineering Research and Design 92, n.º 12 (diciembre de 2014): 2797–805. http://dx.doi.org/10.1016/j.cherd.2014.05.026.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

2

Wang, Xiaoli, Gongde Wu, Tongfa Jin, Jie Xu y Shihao Song. "Selective Oxidation of Glycerol Using 3% H2O2 Catalyzed by Supported Nano-Au Catalysts". Catalysts 8, n.º 11 (29 de octubre de 2018): 505. http://dx.doi.org/10.3390/catal8110505.

Texto completo

Resumen

A series of transition metal oxides or mixed oxides supported nano-Au catalysts were prepared for the selective oxidation of glycerol to glyceric acid using 3% H2O2. It was found that the composition and structure of supports significantly influenced the catalytic performance of catalysts. The mesoporous trimetal mixed oxide (CuNiAlO) supported nano-Au catalysts were more active in comparison with the others. In the present catalytic system, the highest glycerol conversion was 90.5%, while the selectivity of glyceric acid could reach 72%. Moreover, the catalytic performance remained after 11 times of reaction.

Los estilos APA, Harvard, Vancouver, ISO, etc.

3

Friberg, Stig E., Irena Blute y Per Stenius. "Foam stability in a glycerol system". Journal of Colloid and Interface Science 127, n.º 2 (febrero de 1989): 573–82. http://dx.doi.org/10.1016/0021-9797(89)90062-3.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

4

Wiguno, Annas, Asalil Mustain, Wahyu Fazar Eka Irwansyah y Gede Wibawa. "Isothermal Vapor-Liquid Equilibrium of Methanol + Glycerol and 1-Propanol + Glycerol". Indonesian Journal of Chemistry 16, n.º 1 (15 de marzo de 2018): 111. http://dx.doi.org/10.22146/ijc.21186.

Texto completo

Resumen

Isothermal vapor-liquid equilibrium (VLE) data for two binary mixtures of methanol + glycerol and 1-propanol + glycerol were determined at the temperature range from (313.15 to 363.15) K using a simple quasi-static ebulliometer. All systems showed that the vapor pressures increased with increasing alcohols (methanol or 1-propanol) concentrations at corresponding system. The Wilson, Non-Random Two-Liquid (NRTL) and Universal Quasi-Chemical (UNIQUAC) activity coefficient models were used to correlate the experimental data. Both systems showed slightly deviations from the ideal liquid phase behavior.

Los estilos APA, Harvard, Vancouver, ISO, etc.

5

Zhao, Gang, Xiaojie Guo, Liqun He, Zhong Liu y Dayong Gao. "Comparative study of glass transformation of glycerol–H2O–NaCl ternary system and glycerol–PBS complex system". Thermochimica Acta 419, n.º 1-2 (septiembre de 2004): 131–34. http://dx.doi.org/10.1016/j.tca.2004.02.007.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

6

Li, Jingjing, Richard D. Pancost, B. David A. Naafs, Huan Yang, Cheng Zhao y Shucheng Xie. "Distribution of glycerol dialkyl glycerol tetraether (GDGT) lipids in a hypersaline lake system". Organic Geochemistry 99 (septiembre de 2016): 113–24. http://dx.doi.org/10.1016/j.orggeochem.2016.06.007.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

7

Avila-Stagno, Jorge, Alexandre V. Chaves, Gabriel O. Ribeiro, Emilio M. Ungerfeld y Tim A. McAllister. "Inclusion of glycerol in forage diets increases methane production in a rumen simulation technique system". British Journal of Nutrition 111, n.º 5 (7 de octubre de 2013): 829–35. http://dx.doi.org/10.1017/s0007114513003206.

Texto completo

Resumen

We hypothesised that the inclusion of glycerol in the forage diets of ruminants would increase the proportion of propionate produced and thereby decreasein vitroCH4production. This hypothesis was examined in the present study using a semi-continuous fermentation system (rumen simulation technique) fed a brome hay (8·5 g) and maize silage (1·5 g) diet with increasing concentrations (0, 50, 100 and 150 g/kg DM) of glycerol substituted for maize silage. Glycerol linearly increased total volatile fatty acids production (P< 0·001). Acetate production was quadratically affected (P= 0·023) and propionate and butyrate production was linearly increased (P< 0·001). Glycerol linearly increased (P= 0·011) DM disappearance from hay and silage. Crude protein disappearance from hay was not affected (P= 0·789), but that from silage was linearly increased (P< 0·001) with increasing glycerol concentrations. Neutral-detergent fibre (P= 0·040) and acid-detergent fibre (P= 0·031) disappearance from hay and silage was linearly increased by glycerol. Total gas production tended to increase linearly (P= 0·061) and CH4concentration in gas was linearly increased (P< 0·001) by glycerol, resulting in a linear increase (P< 0·001) in mg CH4/g DM digested. Our hypothesis was rejected as increasing concentrations of glycerol in a forage diet linearly increased CH4production in semi-continuous fermenters, despite the increases in the concentrations of propionate. In conclusion, this apparent discrepancy is due to the more reduced state of glycerol when compared with carbohydrates, which implies that there is no net incorporation of electrons when glycerol is metabolised to propionate.

Los estilos APA, Harvard, Vancouver, ISO, etc.

8

Raden Siti Amirah, Hambali, Ahmad Faiza Mohd, Mohd Firdaus Yhaya, Rahmah Mohamed y Mohamed Nur Raihan. "The Effect of Glycidyl Silane as Coupling Agent in Intumescent Flame Retardant System". Advanced Materials Research 664 (febrero de 2013): 677–82. http://dx.doi.org/10.4028/www.scientific.net/amr.664.677.

Texto completo

Resumen

The effect of different carbonizing agents; ethylene glycol, glycerol, and pentaerythritol to the char formation were studied in this research. After burning process, formulation with ethylene glycol, glycerol, and pentaerythritol showed chars thickness of 10 mm, 32 mm, and 45 mm. The chars’ strength at peak force was recorded at 3.20 N, 7.75 N, and 9.48 N while the burning rate of each sample were 5.23 x 10-4 mm/s, 4.20 x10-4 mm/s, and 6.24 x10-4 mm/s respectively. Formulation with glycerol as carbonizing agent showed the lowest burning rate as compared to the other formulations. Additional formulation with glycidyl silane as coupling agent in glycerol formulation was also studied. The formation of chemical bonding between silane, glycerol, and epoxy glycerol was confirmed by Fourier Transform Infrared (FTIR) absorption peak at 767.25 cm-1. The burning rate was 1.44 x 10-5 mm/s after silane treatment. Thermal degradation of the silane-treated resin started at 220°C as measured by thermogravimetric analysis (TGA).

Los estilos APA, Harvard, Vancouver, ISO, etc.

9

Hu, Jianglin, Yanlong Gu, Zhenhong Guan, Jinjin Li, Wanling Mo, Tao Li y Guangxing Li. "An Efficient Palladium Catalyst System for the Oxidative Carbonylation of Glycerol to Glycerol Carbonate". ChemSusChem 4, n.º 12 (16 de noviembre de 2011): 1767–72. http://dx.doi.org/10.1002/cssc.201100337.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

10

Loomis, Shannon E., James M. Russell, Ana M. Heureux, William J. D’Andrea y Jaap S. Sinninghe Damsté. "Seasonal variability of branched glycerol dialkyl glycerol tetraethers (brGDGTs) in a temperate lake system". Geochimica et Cosmochimica Acta 144 (noviembre de 2014): 173–87. http://dx.doi.org/10.1016/j.gca.2014.08.027.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

11

Zhu, Changjin, Takaaki Ohashi, Tatsuya Morimoto, Arnold N. Onyango, Kaneko Takao, Sakayu Shimizu, Shuhei Nakajima y Naomichi Baba. "Synthesis of Phospholipids Bearing a Conjugated Oxo-polyunsaturated Fatty Acid Residue". Journal of Chemical Research 23, n.º 8 (agosto de 1999): 500–501. http://dx.doi.org/10.1177/174751989902300823.

Texto completo

Resumen

2-(15′-Oxo-5’,8’,11’,13′-eicosatetraenoyl)-1-stearoyl- sn-glycerol(3)phosphocholine (APC-CO) 1 and 2 and 2-(13′-oxo-9’,11′-octadecadienoyl)-1-stearoyl- sn-glycero(3)phosphocholine (LPC-CO) 3 are synthesized and an analytical system established for the determination of geometrical isomers at the 13’ position of APC-CO.

Los estilos APA, Harvard, Vancouver, ISO, etc.

12

Li, Xiao Nan, Mei Shan Pei, Lu Yan Wang y Li Wang. "Effect of Glycerol on the Self-Assembly of P123 in a Room-Temperature Ionic Liquid [Bmim]PF₆". Advanced Materials Research 306-307 (agosto de 2011): 1693–97. http://dx.doi.org/10.4028/www.scientific.net/amr.306-307.1693.

Texto completo

Resumen

Phase behavior of ternary systems involving PEO-PPO-PEO block copolymer (Pluronic P123), room-temperature ionic liquid, 1-butyl-3-methylimidazolium hexaﬂuorophosphate [Bmim]PF6, and glycerol is investigated at 25 °C by using small-angle X-ray scattering (SAXS) techniques. In this ternary system, the structures formed in the binary P123/[Bmim]PF6 system, hexagonal phase (H1) and lamellar phase (Lα), are still obtained. At lower P123/[Bmim]PF6 ratio, the H1 phase can accommodate more than 30 % glycerol. At higher P123/[Bmim]PF6 ratio, the Lα phase only accommodates less than 2 % glycerol and Lα changes to H1 with increasing the glycerol content. Moreover, a phase separation takes place at a higher glycerol content. Solvatophobic interactions between hydrophobic groups of [Bmim]PF6 and P123, coulombic force existing in the polyoxyethylene chain and imidazolium cation, H-bond between P123 and glycerol, accompanying with the force ascribe to the nitrogen of the imidazole ring and the oxygen of alcohol are helpful for the formation of long-range ordered structure.

Los estilos APA, Harvard, Vancouver, ISO, etc.

13

Gutierrez-Gomez, Constanza, Nelson Vera, Rodrigo Allende, Pamela Williams, Rita Astudillo y Jorge Ávila-Stagno. "Linseed and glycerol in forage diets effect methane production and rumen fermentation parameters in a Rusitec semi-continuos system". Animal Production Science 60, n.º 7 (2020): 923. http://dx.doi.org/10.1071/an18710.

Texto completo

Resumen

Context The use of oilseeds as a feed ingredient has been proposed to improve fatty acid profiles and reduce methane (CH4) emissions. Glycerol has been used as a common additive in ruminant feeding systems with variable effects on CH4 production. The effects of the combination of these ingredients remain unknown. Aims The aim of this study was to assess the effects of feeding linseed and increasing concentrations of glycerol in forage diets supplemented with corn grain on nutrient disappearance, CH4 production and rumen fermentation parameters. Methods Experimental diets were: control (70:30% hay:corn); linseed (70:15 :15% hay:corn:linseed); 5% glycerol (70:10:15:5% hay:corn:linseed:glycerol); 10% glycerol (70:5:15:10% hay:corn:linseed:glycerol). Diets were incubated in a completely randomised design with four replicates per treatment in a Rusitec apparatus for 15 days (10 days adaptation, 5 days sampling). Key results Total VFA production (VFA, mmol/day) was quadratically increased due to glycerol concentration in the diets (P = 0.009). Acetate:propionate (A:P) decreased by the inclusion of linseed (P < 0.001) and glycerol into the diets (P < 0.001). Linseed inclusion in the diet reduced CH4 production, mg/DM disappeared (P = 0.004) by up to 36%. These effects were not altered by the addition of glycerol into the diets. Ammonia nitrogen (NH3-N) production increased 2-fold in the linseed-added diets, but this effect was partially reverted by increasing glycerol concentrations in the diets (P < 0.001). Crude protein (CP) disappearance increased (P < 0.001) in the linseed added diets, with no effect of glycerol addition. Neutral detergent fibre (aNDFom; P = 0.005) disappearance was increased by the addition of linseed to the diet. Conclusions The use of linseed in ruminant diets reduces CH4 emissions but increases NH3-N production in a Rusitec system. This latter effect is partially reverted by glycerol inclusion in the diet. Propionate production increases with the inclusion of glycerol, but does not alter CH4 production. Including linseed increases the in vitro CP disappearance without affecting DM total disappearance. Implications Care should be taken with the use of oilseeds in ruminant diets as it can reduce CH4 emissions but may cause important increases in NH3 emissions. Inclusion of glycerol may partially overcome this latter issue.

Los estilos APA, Harvard, Vancouver, ISO, etc.

14

Adamčíková, Ľubica y Peter Ševčík. "Belousov–Zhabotinskii type oscillation reaction with glycerol and kinetics of reactions between the system components". Collection of Czechoslovak Chemical Communications 52, n.º 10 (1987): 2375–82. http://dx.doi.org/10.1135/cccc19872375.

Texto completo

Resumen

Glycerol causes chemical oscillations in Belousov-Zhabotinskii reaction in a closed system as well as in a reaction solution bubbled with nitrogen. Since the oxidation of glycerol with bromate ions does not proceed autocatalytically and bromine in the oxidation state 0 or +1 in the absence of light does not react with glycerol, hydrolysis of bromine is the probable source of bromide ions in the studied oscillation system.

Los estilos APA, Harvard, Vancouver, ISO, etc.

15

Vikromvarasiri, Nunthaphan, Thanaporn Laothanachareon, Verawat Champreda y Nipon Pisutpaisal. "Bioethanol Production from Glycerol by Mixed Culture System". Energy Procedia 61 (2014): 1213–18. http://dx.doi.org/10.1016/j.egypro.2014.11.1059.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

16

Wang, LiYan, Yan Liu, ChunLing Liu, RongZhen Yang y WenSheng Dong. "An efficient catalytic system for the synthesis of glycerol carbonate by oxidative carbonylation of glycerol". Science China Chemistry 56, n.º 10 (17 de julio de 2013): 1455–62. http://dx.doi.org/10.1007/s11426-013-4918-5.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

17

Ren, Jiawei, Khanh Dang, Eric Pollet y Luc Avérous. "Preparation and Characterization of Thermoplastic Potato Starch/Halloysite Nano-Biocomposites: Effect of Plasticizer Nature and Nanoclay Content". Polymers 10, n.º 8 (24 de julio de 2018): 808. http://dx.doi.org/10.3390/polym10080808.

Texto completo

Resumen

Nano-biocomposites based on halloysite nanoclay and potato starch were elaborated by melt blending with different polyol plasticizers such as glycerol, sorbitol or a mixture of both. The effects of the type of plasticizer and clay content on potato starch/halloysite nano-biocomposites were studied. SEM analyses combined with ATR-FTIR results showed that a high content of sorbitol had a negative effect on the dispersion of the halloysite nanoclay in the starchy matrix. XRD results demonstrated that incorporation of halloysite nanoclay into glycerol-plasticized starch systems clearly led to the formation of a new crystalline structure. The addition of halloysite nanoclay improved the thermal stability and decreased the moisture absorption of the nano-biocomposites, whatever the type of plasticizer used. Halloysite addition led to more pronounced improvement in mechanical properties for glycerol plasticized system compared to nanocomposites based on sorbitol and glycerol/sorbitol systems with a 47% increase in tensile strength for glycerol-plasticized starch compared to 10.5% and 11% for sorbitol and glycerol/sorbitol systems, respectively. The use of a mixture of polyols was found to be a promising way to optimize the mechanical properties of these starch-based nanocomposites.

Los estilos APA, Harvard, Vancouver, ISO, etc.

18

Antonnikova, Alexandra, Sergey Basalaev, Anna Usanina y Eugene Maslov. "An experimental study of the dynamics of ascent of the bubble system in the presence of a surfactant". MATEC Web of Conferences 194 (2018): 01002. http://dx.doi.org/10.1051/matecconf/201819401002.

Texto completo

Resumen

This paper presents investigations on the new experimental setup for obtaining a compact cluster of monodisperse bubbles of a given diameter is presented. Also we provided the results of experimental study of the bubble cluster floating-up in the presence of a surfactant in a wide range of Reynolds numbers. There was held a comparison of the dynamics of the floating-up of a monodisperse bubble cluster in a glycerol medium and in the medium glycerin supplemented with a surfactant.

Los estilos APA, Harvard, Vancouver, ISO, etc.

19

Liu, Liping, Yu Cui, Shuo Chen y Shuqi Fang. "Study on thermodynamics of glycerol hydrogenolysis to high value-added diols". E3S Web of Conferences 165 (2020): 05003. http://dx.doi.org/10.1051/e3sconf/202016505003.

Texto completo

Resumen

The thermodynamic process on hydrogenolysis of glycerol to high value-added diols was studied. The thermodynamic parameters of the main reaction equations were calculated, and the effects of temperature, pressure and molar ratio of hydrogen to glycerol on the products of the reaction equilibrium system were analysed. The deep hydrogenolysis system of glycerol and the degradation of its diols are also discussed. The results show that temperature has a great influence on the selectivity of the products. 1,2-propanediol is more easily formed. The optimum conditions for hydrogenolysis of glycerol to 1,2-propanediol are 400-500 K and the molar ratio of hydrogen to glycerol of 1.0-1.5. The calculated results are compared with the related experimental results.

Los estilos APA, Harvard, Vancouver, ISO, etc.

20

Beijer, Lena y Lars Rutberg. "Utilisation of glycerol and glycerol 3-phosphate is differently affected by the phosphotransferase system inBacillus subtilis". FEMS Microbiology Letters 100, n.º 1-3 (diciembre de 1992): 217–20. http://dx.doi.org/10.1111/j.1574-6968.1992.tb14043.x.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

21

Vilei, Edy M. y Joachim Frey. "Genetic and Biochemical Characterization of Glycerol Uptake in Mycoplasma mycoides subsp.mycoides SC: Its Impact on H2O2Production and Virulence". Clinical Diagnostic Laboratory Immunology 8, n.º 1 (1 de enero de 2001): 85–92. http://dx.doi.org/10.1128/cdli.8.1.85-92.2001.

Texto completo

Resumen

ABSTRACT Highly virulent strains of Mycoplasma mycoides subsp.mycoides SC belonging to the African cluster contain an operon with the genes gtsA, gtsB, andgtsC, encoding membrane ATP binding cassette transporter proteins GtsA, GtsB, and GtsC, which are involved in glycerol transport. Strain Afadé from the African cluster incorporated [U-14C]glycerol with a time-dependent increase. The less virulent strain L2 of the European cluster, which lacksgtsB and gtsC, failed to incorporate glycerol. Antibodies against GtsB noncompetitively inhibited glycerol uptake.l-α-Glycerophosphate was not transported by M. mycoides subsp. mycoides SC. It is postulated to be synthesized by phosphorylation of glycerol during transport and subsequently metabolized further to dihydroxyacetone phosphate accompanied by release of H2O2. Peroxide production in glycerol-containing growth medium was high for the African strain Afadé but very low for the European strain L2. Virtually no H2O2 was produced by both strains without glycerol. Hence, the efficient glycerol uptake system found in the virulent strain of the African cluster leads to a strong release of peroxide, a potential virulence factor which is lacking in the less virulent European strains. M. mycoides subsp.mycoides SC might have adopted, as a strategy for virulence, a highly efficient uptake system for glycerol which allows the production of an active metabolic intermediate that damages host cells.

Los estilos APA, Harvard, Vancouver, ISO, etc.

22

Marion, Michaël, Hasna Louahlia y Hamid Gualous. "Performances of a CHP Stirling system fuelled with glycerol". Renewable Energy 86 (febrero de 2016): 182–91. http://dx.doi.org/10.1016/j.renene.2015.08.012.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

23

Liu, Hailong y Guoxin Cao. "Super Energy Absorption System Based on Nanofluidic Glycerol Solution". Journal of Physical Chemistry C 118, n.º 43 (22 de octubre de 2014): 25223–33. http://dx.doi.org/10.1021/jp507411w.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

24

Saier Jr., Milton H. y Zhongge Zhang. "Control of Transposon-Mediated Directed Mutation by the Escherichia coli Phosphoenolpyruvate:Sugar Phosphotransferase System". Journal of Molecular Microbiology and Biotechnology 25, n.º 2-3 (2015): 226–33. http://dx.doi.org/10.1159/000375375.

Texto completo

Resumen

The phosphoenolpyruvate:sugar phosphotransferase system (PTS) has been shown to control transport, cell metabolism and gene expression. We here present results supporting the novel suggestion that in certain instances it also regulates the mutation rate. Directed mutations are defined as mutations that occur at higher frequencies when beneficial than when neutral or detrimental. To date, the occurrence of directed point mutations has not been documented and confirmed, but a few examples of transposon-mediated directed mutations have been reported. Here we focus on the first and best-studied example of directed mutation, which involves the regulation of insertion sequence-5 hopping into a specific site upstream of the <i>glpFK</i> glycerol utilization operon in <i>Escherichia coli</i>. This insertional event specifically activates expression of the <i>glpFK</i> operon, allowing the growth of wild-type cells with glycerol as a carbon source in the presence of nonmetabolizable glucose analogues which normally block glycerol utilization. The sugar-transporting PTS controls this process by regulating levels of cytoplasmic glycerol-3-phosphate and cyclic (c)AMP as established in previous publications. Direct involvement of the glycerol repressor, GlpR, and the cAMP receptor protein, Crp, in the regulation of transposon-mediated directed mutation has been demonstrated.

Los estilos APA, Harvard, Vancouver, ISO, etc.

25

Forney, Charles F. y David G. Brandl. "A SIMPLE METHOD TO CONTROL HUMIDITY IN SMALL EXPERIMENTAL CHAMBERS". HortScience 25, n.º 9 (septiembre de 1990): 1105e—1105. http://dx.doi.org/10.21273/hortsci.25.9.1105e.

Texto completo

Resumen

Humidity is an important component of the enviornment that influences the growth, development and storage life of most horticultural crops. A method to control relative humidity (RH) in experimental chambers using solutions of glycerol-water has been developed. A constant RH can be established and maintained by bubbling air through a glycerol-water solution of known water content. The air rapidly reaches equilibrium with the glycerol-water solution producing the desired RH. The relationship of the specific gravity (SG) of glycerol-water solutions and the corresponding equilibrium RH was determined. Any desired RH can be produced by using solutions of the appropriate SG ranging from 100% with pure water (SG 25/25 = 1.000) to 0% with pure glycerol (SG 25/25 = 1.261) This system can be used in flow through systems by bubbling the incoming air through the solution or in closed systems by circulating air through the solution and the chamber. Multiple jars of solution can be used for more precise RH control. The effects that temperature and atmospheric pressure in the jars have on the equilibrium RH will be discussed.

Los estilos APA, Harvard, Vancouver, ISO, etc.

26

Doi, Yuki. "l-Lactate Production from Biodiesel-Derived Crude Glycerol by Metabolically Engineered Enterococcus faecalis: Cytotoxic Evaluation of Biodiesel Waste and Development of a Glycerol-Inducible Gene Expression System". Applied and Environmental Microbiology 81, n.º 6 (9 de enero de 2015): 2082–89. http://dx.doi.org/10.1128/aem.03418-14.

Texto completo

Resumen

ABSTRACTBiodiesel waste is a by-product of the biodiesel production process that contains a large amount of crude glycerol. To reuse the crude glycerol, a novel bioconversion process usingEnterococcus faecaliswas developed through physiological studies. TheE. faecalisstrain W11 could use biodiesel waste as a carbon source, although cell growth was significantly inhibited by the oil component in the biodiesel waste, which decreased the cellular NADH/NAD+ratio and then induced oxidative stress to cells. When W11 was cultured with glycerol, the maximum culture density (optical density at 600 nm [OD600]) under anaerobic conditions was decreased 8-fold by the oil component compared with that under aerobic conditions. Furthermore, W11 cultured with dihydroxyacetone (DHA) could show slight or no growth in the presence of the oil component with or without oxygen. These results indicated that the DHA kinase reaction in the glycerol metabolic pathway was sensitive to the oil component as an oxidant. The lactate dehydrogenase (Ldh) activity of W11 during anaerobic glycerol metabolism was 4.1-fold lower than that during aerobic glycerol metabolism, which was one of the causes of lowl-lactate productivity. TheE. faecalispflBgene disruptant (Δpflmutant) expressing theldhL1LPgene produced 300 mMl-lactate from glycerol/crude glycerol with a yield of >99% within 48 h and reached a maximum productivity of 18 mM h−1(1.6 g liter−1h−1). Thus, our study demonstrates that metabolically engineeredE. faecaliscan convert crude glycerol tol-lactate at high conversion efficiency and provides critical information on the recycling process for biodiesel waste.

Los estilos APA, Harvard, Vancouver, ISO, etc.

27

Rossi, Sergio, Enrique Isla, Susanne Fietz, Alfredo Martìnez-Garcia, Elisabet Sañé y Nùria Teixidò. "Temporal variation of seston biomarkers within the Humboldt Current System off northern Chile (21". Advances in Oceanography and Limnology 3, n.º 1 (1 de junio de 2012): 17. http://dx.doi.org/10.4081/aiol.2012.5324.

Texto completo

Resumen

Proportions and concentrations of seston fatty acids, n-alkanes and glycerol dialkyl glycerol tetraethers (GDGTs) were used to assess potential differences in the phytoplankton composition and food quality in the Humboldt Current System (winter 2006, summer 2007 and winter 2007) in surface, oxycline, intermediate and bottom water layers. The zone below the intermediate depth was poorer in fatty acids (minimum 15 – maximum 117mg fatty acids L

Los estilos APA, Harvard, Vancouver, ISO, etc.

28

Ziborov, Vadim S., Tatyana O. Pleshakova, Ivan D. Shumov, Andrey F. Kozlov, Irina A. Ivanova, Anastasia A. Valueva, Vadim Yu Tatur, Andrey N. Negodailov, Andrei A. Lukyanitsa y Yuri D. Ivanov. "Investigation of the Influence of Liquid Motion in a Flow-Based System on an Enzyme Aggregation State with an Atomic Force Microscopy Sensor: The Effect of Glycerol Flow". Applied Sciences 10, n.º 14 (14 de julio de 2020): 4825. http://dx.doi.org/10.3390/app10144825.

Texto completo

Resumen

Atomic force microscopy is employed to study the influence of the motion of a glycerol solution through a coiled (spiral-wound) polymeric communication pipe on the aggregation state of a protein, with the example of a horseradish peroxidase (HRP) enzyme. The measuring cell with the buffered solution of the protein was placed within the experimental setup over the pipe coil, through which glycerol was pumped. It is demonstrated that, in such a system, the flow of a non-aqueous liquid (glycerol) leads to a change in the physicochemical properties of a protein, whose solution was incubated in the measuring cell placed over the coil. Namely, changes in both the adsorbability onto mica and the aggregation state of the model HRP protein were observed. As glycerol-containing liquids are commonly used in biosensor operations, the results reported herein can be useful to the development of biosensor systems, in which polymeric communications are employed in sample delivery and thermal stabilization systems. The data obtained herein can also be of use for the development of specified hydrodynamic models.

Los estilos APA, Harvard, Vancouver, ISO, etc.

29

Beijer, Lena y Lars Rutberg. "Utilisation of glycerol and glycerol 3-phosphate is differently affected by the phosphotransferase system in Bacillus subtilis". FEMS Microbiology Letters 100, n.º 1-3 (diciembre de 1992): 217–20. http://dx.doi.org/10.1111/j.1574-6968.1992.tb05706.x.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

30

Cai, Chen, Ye-mei Luan, Xiao-min Shi y Yun-hong Zhang. "(NH4)2SO4 heterogeneous nucleation and glycerol evaporation of (NH4)2SO4-glycerol system in its dynamic efflorescence process". Chemical Physics 483-484 (febrero de 2017): 140–48. http://dx.doi.org/10.1016/j.chemphys.2016.12.003.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

31

Álvarez, Mayra G., Martina Plíšková, Anna M. Segarra, Françesc Medina y François Figueras. "Synthesis of glycerol carbonates by transesterification of glycerol in a continuous system using supported hydrotalcites as catalysts". Applied Catalysis B: Environmental 113-114 (febrero de 2012): 212–20. http://dx.doi.org/10.1016/j.apcatb.2011.11.040.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

32

Palmerín-Carreño, Dulce, Dania Martínez-Alarcón, José Luis Dena-Beltrán, Lineth Juliana Vega-Rojas, Alejandro Blanco-Labra, Antonio Escobedo-Reyes y Teresa García-Gasca. "Optimization of a Recombinant Lectin Production in Pichia pastoris Using Crude Glycerol in a Fed-Batch System". Processes 9, n.º 5 (17 de mayo de 2021): 876. http://dx.doi.org/10.3390/pr9050876.

Texto completo

Resumen

The production of heterologous proteins for medical use is an important area of interest. The optimization of the bioprocesses includes the improvement of time, costs, and unit operations. Our study shows that a lectin fraction from Tepary bean (Phaseolus acutifolius) (TBLF) has cytotoxic effects on colon cancer cells and in vivo antitumorigenic activity. However, the low-yield, time-consuming, and expensive process made us focus on the development of a strategy to obtain a recombinant lectin using engineered Pichia pastoris yeast. Pure glycerol is one of the most expensive supplies; therefore, we worked on process optimization using crude glycerol from biodiesel production. Recombinant lectin (rTBL-1) production and purification were evaluated for the first time by an experimental design where crude glycerol (G65) was used and compared against pure glycerol (G99) in a controlled stirred-tank bioreactor with a fed-batch system. The recombinant lectin was detected and identified by SDS-PAGE, Western blot, and UHPLC–ESI–QTOF/MS analysis. The results show that the recombinant lectin can be produced from G65 with no significant differences with respect to G99: the reaction rates were 2.04 and 1.43 mg L−1 h−1, and the yields were 264.95 and 274.67 mgL−1, respectively. The current low cost of crude glycerol and our results show the possibility of producing heterologous proteins using this substrate with high productivity.

Los estilos APA, Harvard, Vancouver, ISO, etc.

33

Kumar, Manoj y Guruswamy Kumaraswamy. "Phase behaviour of the ternary system: monoolein–water–branched polyethylenimine". Soft Matter 11, n.º 28 (2015): 5705–11. http://dx.doi.org/10.1039/c5sm01082a.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

34

Ferreira, Célia, Frank van Voorst, António Martins, Luisa Neves, Rui Oliveira, Morten C. Kielland-Brandt, Cândida Lucas y Anders Brandt. "A Member of the Sugar Transporter Family, Stl1p Is the Glycerol/H+Symporter inSaccharomyces cerevisiae". Molecular Biology of the Cell 16, n.º 4 (abril de 2005): 2068–76. http://dx.doi.org/10.1091/mbc.e04-10-0884.

Texto completo

Resumen

Glycerol and other polyols are used as osmoprotectants by many organisms. Several yeasts and other fungi can take up glycerol by proton symport. To identify genes involved in active glycerol uptake in Saccharomyces cerevisiae we screened a deletion mutant collection comprising 321 genes encoding proteins with 6 or more predicted transmembrane domains for impaired growth on glycerol medium. Deletion of STL1, which encodes a member of the sugar transporter family, eliminates active glycerol transport. Stl1p is present in the plasma membrane in S. cerevisiae during conditions where glycerol symport is functional. Both the Stl1 protein and the active glycerol transport are subject to glucose-induced inactivation, following identical patterns. Furthermore, the Stl1 protein and the glycerol symporter activity are strongly but transiently induced when cells are subjected to osmotic shock. STL1 was heterologously expressed in Schizosaccharomyces pombe, a yeast that does not contain its own active glycerol transport system. In S. pombe, STL1 conferred the ability to take up glycerol against a concentration gradient in a proton motive force-dependent manner. We conclude that the glycerol proton symporter in S. cerevisiae is encoded by STL1.

Los estilos APA, Harvard, Vancouver, ISO, etc.

35

Borges, Nuno, Luís G. Gonçalves, Marta V. Rodrigues, Filipa Siopa, Rita Ventura, Christopher Maycock, Pedro Lamosa y Helena Santos. "Biosynthetic Pathways of Inositol and Glycerol Phosphodiesters Used by the Hyperthermophile Archaeoglobus fulgidus in Stress Adaptation". Journal of Bacteriology 188, n.º 23 (6 de octubre de 2006): 8128–35. http://dx.doi.org/10.1128/jb.01129-06.

Texto completo

Resumen

ABSTRACT Archaeoglobus fulgidus accumulates di-myo-inositol phosphate (DIP) and diglycerol phosphate (DGP) in response to heat and osmotic stresses, respectively, and the level of glycero-phospho-myo-inositol (GPI) increases primarily when the two stresses are combined. In this work, the pathways for the biosynthesis of these three compatible solutes were established based on the detection of the relevant enzymatic activities and characterization of the intermediate metabolites by nuclear magnetic resonance analysis. The synthesis of DIP proceeds from glucose-6-phosphate via four steps: (i) glucose-6-phosphate was converted into l-myo-inositol 1-phosphate by l-myo-inositol 1-phosphate synthase; (ii) l-myo-inositol 1-phosphate was activated to CDP-inositol at the expense of CTP; this is the first demonstration of CDP-inositol synthesis in a biological system; (iii) CDP-inositol was coupled with l-myo-inositol 1-phosphate to yield a phosphorylated intermediate, 1,1′-di-myo-inosityl phosphate 3-phosphate (DIPP); (iv) finally, DIPP was dephosphorylated into DIP by the action of a phosphatase. The synthesis of the two other polyol-phosphodiesters, DGP and GPI, proceeds via the condensation of CDP-glycerol with the respective phosphorylated polyol, glycerol 3-phosphate for DGP and l-myo-inositol 1-phosphate for GPI, yielding the respective phosphorylated intermediates, 1X,1′X-diglyceryl phosphate 3-phosphate (DGPP) and 1-(1X-glyceryl) myo-inosityl phosphate 3-phosphate (GPIP), which are subsequently dephosphorylated to form the final products. The results disclosed here represent an important step toward the elucidation of the regulatory mechanisms underlying the differential accumulation of these compounds in response to heat and osmotic stresses.

Los estilos APA, Harvard, Vancouver, ISO, etc.

36

Schertzer, Jeffrey W. y Eric D. Brown. "Use of CDP-Glycerol as an Alternate Acceptor for the Teichoic Acid Polymerase Reveals that Membrane Association Regulates Polymer Length". Journal of Bacteriology 190, n.º 21 (19 de agosto de 2008): 6940–47. http://dx.doi.org/10.1128/jb.00851-08.

Texto completo

Resumen

ABSTRACT The study of bacterial extracellular polysaccharide biosynthesis is hampered by the fact that these molecules are synthesized on membrane-resident carrier lipids. To get around this problem, a practical solution has been to synthesize soluble lipid analogs and study the biosynthetic enzymes using a soluble system. This has been done for the Bacillus subtilis teichoic acid polymerase, TagF, although several aspects of catalysis were inconsistent with the results obtained with reconstituted membrane systems or physiological observations. In this work we explored the acceptor substrate promiscuity and polymer length disregulation that appear to be characteristic of TagF activity away from biological membranes. Using isotope labeling, steady-state kinetics, and chemical lability studies, we demonstrated that the enzyme can synthesize poly(glycerol phosphate) teichoic acid using the elongation substrate CDP-glycerol as an acceptor. This suggests that substrate specificity is relaxed in the region distal to the glycerol phosphate moiety in the acceptor molecule under these conditions. Polymer synthesis proceeded at a rate (27 min−1) comparable to that in the reconstituted membrane system after a distinct lag period which likely represented slower initiation on the unnatural CDP-glycerol acceptor. We confirmed that polymer length became disregulated in the soluble system as the polymers synthesized on CDP-glycerol acceptors were much larger than the polymers synthesized on the membrane or previously found attached to bacterial cell walls. Finally, polymer synthesis on protease-treated membranes suggested that proper length regulation is retained in the absence of accessory proteins and provided evidence that such regulation is conferred through proper association of the polymerase with the membrane.

Los estilos APA, Harvard, Vancouver, ISO, etc.

37

Li, Jing Jing, Tao Zhou, Meng Ying Liu, Zi Wei Su y Wen Zhong Zou. "The Choice of Coolants in Accelerate Driven System". Advanced Materials Research 681 (abril de 2013): 195–99. http://dx.doi.org/10.4028/www.scientific.net/amr.681.195.

Texto completo

Resumen

The accelerate driven system has an important role in sub-critical reactor. With the good physical property of high specific heat, low vapor pressure, low thermal decomposition rate and so on, the glycerol, hydrogenated terphenyls and water of low pressure are widely used in the accelerate driven sub-critical reactor as the secondary coolant. Compare the three coolant by the aspect of heat economy and engineering safety, we conclude that, compared with the glycerol and the hydrogenated terphenyls, water of low pressure has the best heat economy, at the same time it has the lowest pressure drop and the highest coefficient of heat transfer in the heat exchange tube. Therefore, choose water in low pressure as the secondary coolant in sub-critical reactor can decrease the heat exchange area to a large extent, together with the advantage of economy and safe.

Los estilos APA, Harvard, Vancouver, ISO, etc.

38

Zhang, Xu, Xinying Wang, Enmin Feng y Zhilong Xiu. "Robust Analysis and Parameters Identification of the Nonlinear Multistage Dynamical System in Batch Fermentation of Glycerol". Journal of Applied Mathematics 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/925404.

Texto completo

Resumen

This paper discusses a complex biological problem which is the fermentation of glycerol byKlebsiella pneumoniaein batch culture. We set up an improved multistage model involving the concentration of intracellular substances. Furthermore, the existence, uniqueness, and continuity of solutions with respect to the parameters are discussed. On the condition that glycerol and 1,3-propanediol are assumed to pass the cell membrane by passive diffusion coupled with facilitated transport, we take the relative errors between experimental data and computational values of the extracellular substances concentrations and the biological robustness of the intracellular substances concentrations as the performance index. Then we establish a parameter identification model and construct the particle swarm optimization algorithm to solve it. Finally, the numerical result shows that the improved model could describe the glycerol fermentation in batch culture well.

Los estilos APA, Harvard, Vancouver, ISO, etc.

39

North, Richard B., David H. Kidd, Steven Piantadosi y Benjamin S. Carson. "Percutaneous retrogasserian glycerol rhizotomy". Journal of Neurosurgery 72, n.º 6 (junio de 1990): 851–56. http://dx.doi.org/10.3171/jns.1990.72.6.0851.

Texto completo

Resumen

✓ Eighty-five medically intractable trigeminal neuralgia patients treated by percutaneous retrogasserian glycerol rhizotomy (PRGR) were followed for 6 to 54 months. The median time to recurrence of symptoms refractory to medical therapy and requiring further intervention was 3 years (by Kaplan-Meier survival analysis). The median time to recurrence of symptoms requiring some form of medical treatment was 2 years. Following repeat PRGR for recurrent symptoms, the median time to recurrence was 1 year. Univariate log rank statistics and multivariate Cox proportional hazards modeling revealed significant associations between favorable outcome and female sex, absence of atypical features or associated cluster headache symptoms, success of prior carbamazepine therapy, duration of symptoms, and cerebrospinal fluid return during the procedure. A scoring system using prognostic factors has been developed based upon these findings. Assessment of published studies of PRGR and of other treatments for trigeminal neuralgia is made difficult by the variety of outcome measures employed and variable follow-up intervals. The present study attempts to address these issues by definition of endpoints, statistical analysis of the data, and identification of important prognostic factors in a manner useful to the clinician.

Los estilos APA, Harvard, Vancouver, ISO, etc.

40

Lembcke, B., A. L�sler, W. F. Caspary, P. Sch�rnbrand, D. Emrich y W. Creutzfeldt. "Clinical value of dual-isotope fat absorption test system (FATS) using glycerol [125I]trioleate and glycerol [75Se]triether". Digestive Diseases and Sciences 31, n.º 8 (agosto de 1986): 822–28. http://dx.doi.org/10.1007/bf01296050.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

41

Ekinci, Emine Kaya, Gamze Gündüz y Nuray Oktar. "Activity Comparison of Acidic Resins in the Production of Valuable Glycerol Acetates". International Journal of Chemical Reactor Engineering 14, n.º 1 (1 de febrero de 2016): 309–14. http://dx.doi.org/10.1515/ijcre-2015-0012.

Texto completo

Resumen

AbstractAcetates of glycerol have been produced in a heterogeneous reaction system using acidic ion-exchange resin catalysts; Amberlyst-15 (A-15), Amberlyst-16 (A-16), Amberlyst-36 (A-36), Amberlite-IR 120 (A-IR 120) and Relite-EXC8D (R-EXC8D). Effect of reaction temperature on glycerol conversion and product (mono, di and tri glycerol acetates) selectivities were investigated via reaction experiments conducted with glycerol to acetic acid initial molar ratio (G/Ac) of 1/6. Increase in glycerol conversion with an increase in temperature was observed for all catalysts. Among the catalysts investigated, R-EXC8D exhibited the highest activity in the temperature range of 95–150°C. Reaction was completed within a 25 minute short time period.

Los estilos APA, Harvard, Vancouver, ISO, etc.

42

Janssens, Kwinten, Maxime Stalpaert, Mickaël Henrion y Dirk E. De Vos. "From crude industrial waste glycerol to biopropene via Ru-mediated hydrodeoxygenation in ionic liquids". Chemical Communications 57, n.º 51 (2021): 6324–27. http://dx.doi.org/10.1039/d1cc01779a.

Texto completo

Resumen

The catalytic conversion of crude glycerol to biopropene was investigated. The bifunctional Ru-ionic liquid system showed a high tolerance for common crude glycerol impurities. Up to 82% biopropene yield with 94% olefin selectivity was achieved.

Los estilos APA, Harvard, Vancouver, ISO, etc.

43

Borges, S. y P. Teixeira. "Pediococcus pentosaceus SB83 as a potential probiotic incorporated in a liquid system for vaginal delivery". Beneficial Microbes 5, n.º 4 (1 de diciembre de 2014): 421–26. http://dx.doi.org/10.3920/bm2013.0084.

Texto completo

Resumen

Pediococcus pentosaceus SB83 is a bacteriocinogenic culture having potential use as a vaginal probiotic. The objective of this study was to evaluate the behaviour of P. pentosaceus SB83 incorporated in a liquid system for eventually formulating a gel for vaginal delivery. The vaginal probiotic incorporated into glycerol was able to survive in simulated vaginal fluid at normal vaginal pH (4.2) and at pH of vaginal infections (5.5 and 6.5). The probiotic can be stored at 4 °C for a longer period of time than at room temperature, however, after 13 weeks of storage at low temperature, there was a total loss of viable cells. The probiotic strain incorporated into glycerol showed bacteriocinogenic activity in simulated vaginal fluid, although the antimicrobial activity against Listeria monocytogenes declined during storage. This study showed the behaviour of P. pentosaceus SB83 in glycerol and in simulated vaginal fluid. However, it is necessary to optimise the formulation to produce an actively probiotic vaginal gel.

Los estilos APA, Harvard, Vancouver, ISO, etc.

44

Ban, Munenori y Pak-Kon Choi. "Multibubble sonoluminescence and bubble dynamics in glycerol/water mixture system". Japanese Journal of Applied Physics 59, n.º 9 (13 de agosto de 2020): 092002. http://dx.doi.org/10.35848/1347-4065/abaac4.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

45

Dong, Xiaohui, Ting Zhang, Hongyuan Wei y Leping Dang. "Stability of sodium ascorbyl phosphate in the water-glycerol system". Journal of Pharmaceutical and Biomedical Analysis 181 (marzo de 2020): 113103. http://dx.doi.org/10.1016/j.jpba.2020.113103.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

46

闫, 天兰. "Synthesis of Glycerol Carbonate Catalyzed by CaO in Heterogeneous System". Hans Journal of Chemical Engineering and Technology 07, n.º 04 (2017): 168–74. http://dx.doi.org/10.12677/hjcet.2017.74025.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

47

Kuvshinova, T. B., V. M. Skorikov, V. D. Volodin y L. I. Demina. "Interaction in the system Bi(NO3)3-K3HCit-(H2O + glycerol)". Russian Journal of Inorganic Chemistry 58, n.º 11 (noviembre de 2013): 1294–97. http://dx.doi.org/10.1134/s0036023613110120.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

48

Ranieri, Giuseppe A., Luigi Coppola, Mario Terenzi y Camillo La Mesa. "Phase diagram of the system water-glycerol-triton TX 100". Berichte der Bunsengesellschaft für physikalische Chemie 98, n.º 4 (abril de 1994): 603–9. http://dx.doi.org/10.1002/bbpc.19940980412.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

49

Shulami, Smadar, Arie Zehavi, Valery Belakhov, Rachel Salama, Shifra Lansky, Timor Baasov, Gil Shoham y Yuval Shoham. "Cross-utilization of β-galactosides and cellobiose in Geobacillus stearothermophilus". Journal of Biological Chemistry 295, n.º 31 (3 de junio de 2020): 10766–80. http://dx.doi.org/10.1074/jbc.ra120.014029.

Texto completo

Resumen

Strains of the Gram-positive, thermophilic bacterium Geobacillus stearothermophilus possess elaborate systems for the utilization of hemicellulolytic polysaccharides, including xylan, arabinan, and galactan. These systems have been studied extensively in strains T-1 and T-6, representing microbial models for the utilization of soil polysaccharides, and many of their components have been characterized both biochemically and structurally. Here, we characterized routes by which G. stearothermophilus utilizes mono- and disaccharides such as galactose, cellobiose, lactose, and galactosyl-glycerol. The G. stearothermophilus genome encodes a phosphoenolpyruvate carbohydrate phosphotransferase system (PTS) for cellobiose. We found that the cellobiose-PTS system is induced by cellobiose and characterized the corresponding GH1 6-phospho-β-glucosidase, Cel1A. The bacterium also possesses two transport systems for galactose, a galactose-PTS system and an ABC galactose transporter. The ABC galactose transport system is regulated by a three-component sensing system. We observed that both systems, the sensor and the transporter, utilize galactose-binding proteins that also bind glucose with the same affinity. We hypothesize that this allows the cell to control the flux of galactose into the cell in the presence of glucose. Unexpectedly, we discovered that G. stearothermophilus T-1 can also utilize lactose and galactosyl-glycerol via the cellobiose-PTS system together with a bifunctional 6-phospho-β-gal/glucosidase, Gan1D. Growth curves of strain T-1 growing in the presence of cellobiose, with either lactose or galactosyl-glycerol, revealed initially logarithmic growth on cellobiose and then linear growth supported by the additional sugars. We conclude that Gan1D allows the cell to utilize residual galactose-containing disaccharides, taking advantage of the promiscuity of the cellobiose-PTS system.

Los estilos APA, Harvard, Vancouver, ISO, etc.

50

Yuan, Q., R. Sparling, P. Lagasse, Y. M. Lee, D. Taniguchi y J. A. Oleszkiewicz. "Enhancing biological phosphorus removal with glycerol". Water Science and Technology 61, n.º 7 (1 de abril de 2010): 1837–43. http://dx.doi.org/10.2166/wst.2010.974.

Texto completo

Resumen

An enhanced biological phosphorus removal process (EBPR) was successfully operated in presence of acetate. When glycerol was substituted for acetate in the feed the EBPR process failed. Subsequently waste activated sludge (WAS) from the reactor was removed to an off-line fermenter. The same amount of glycerol was added to the WAS fermenter which led to significant volatile fatty acids (VFA) production. By supplying the system with the VFA-enriched supernatant of the fermentate, biological phosphorus removal was enhanced. It was concluded that, if glycerol was to be used as an external carbon source in EBPR, the effective approach was to ferment glycerol with waste activated sludge.

Los estilos APA, Harvard, Vancouver, ISO, etc.

Ofrecemos descuentos en todos los planes premium para autores cuyas obras están incluidas en selecciones literarias temáticas. ¡Contáctenos para obtener un código promocional único!