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https://www.readbyqxmd.com/read/28194315/screening-of-faba-bean-vicia-faba-l-accessions-to-acidity-and-aluminium-stresses
#1
Kiflemariam Y Belachew, Frederick L Stoddard
BACKGROUND: Faba bean is an important starch-based protein crop produced worldwide. Soil acidity and aluminium toxicity are major abiotic stresses affecting its production, so in regions where soil acidity is a problem, there is a gap between the potential and actual productivity of the crop. Hence, we set out to evaluate acidity and aluminium tolerance in a range of faba bean germplasm using solution culture and pot experiments. METHODS: A set of 30 accessions was collected from regions where acidity and aluminium are or are not problems...
2017: PeerJ
https://www.readbyqxmd.com/read/28187046/effect-of-hydroxyethyl-starch-priming-on-the-systemic-inflammatory-response-and-lung-edema-following-cardiopulmonary-bypass-in-a-rat-model
#2
Yutaka Fujii, Takayuki Tanabe, Tsubasa Yamashiro, Mikiyasu Shirai, Yoshiaki Takewa, Eisuke Tatsumi
Cardiopulmonary bypass (CPB) preserves patients' lives during open heart surgery by providing sufficient oxygen delivery and blood supply to vital organs. However, previous studies have suggested that the interaction of hemodilution and vascular hyperpermeability induces tissue edema and an inflammatory response during CPB. In this study, we hypothesized that suppression of the systemic inflammatory response and tissue edema during CPB by a plasma substitute (hydroxyethyl starch: HES).Rats (450-500 g) were divided into a SHAM group (n=5), a Ringer's acetate CPB group (n=7), and an HES CPB group (n=7)...
February 7, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28185386/endodontic-irrigation-protocols-effects-on-bonding-of-adhesive-systems-to-coronal-enamel-and-dentin
#3
Marcos Paulo Marchiori Carvalho, Victor Hugo Carvalho Morari, Alexandre Henrique Susin, Rachel De Oliveira Rocha, Luiz Felipe Valandro, Fabio Zovico Maxnuck Soares
OBJECTIVE:  To evaluate the influence of endodontic irrigation protocols on bond strength of total-etch and self-etch adhesive systems to coronal enamel and dentin. MATERIALS AND METHODS:  A total of 66 coronal slices from 11 permanent molars were assigned to six groups (n = 11): endodontic irrigation protocols (5% sodium hypochlorite + 17% EDTA; 2% chlorhexidine gel + saline solution + 17% EDTA or no solution - control) and adhesive systems (Adper Single Bond 2 or Clearfil SE Bond)...
February 10, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28167105/influence-of-chitosan-concentration-on-mechanical-and-barrier-properties-of-corn-starch-chitosan-films
#4
Lili Ren, Xiaoxia Yan, Jiang Zhou, Jin Tong, Xingguang Su
The active packaging films based on corn starch and chitosan were prepared through mixing the starch solution and the chitosan solution (1:1) by casting. The aim of this work was to characterize and analyze the effects of the chitosan concentrations (0, 21, 41, 61 and 81wt% of starch) on physicochemical, mechanical and water vapor barrier properties as well as morphological characteristics of the corn starch/chitosan (CS/CH) films. Starch molecules and chitosan could interact through hydrogen bonding as confirmed from the shift of the main peaks to higher wavenumbers in FTIR and the reduction of crystallinity in XRD...
February 3, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28152071/the-effect-of-structural-properties-on-rheological-behaviour-of-starches-in-binary-dimethyl-sulfoxide-water-solutions
#5
Anna Ptaszek, Paweł Ptaszek, Marek Dziubiński, N Mirosław Grzesik, Marta Liszka-Skoczylas
This research study analysed the rheological properties of potato amylose and potato amylopectin in binary solutions of the following water and dimethyl sulfoxide concentrations: 90% DMSO (1), 80% DMSO (2) and 50% DMSO (3), with preparation methodology involving the dissolution at the temperature of 98°C. The studies of dynamic light scattering on the biopolymer coils and the determination of main relaxation times of the solutions were carried out. For the amylose solutions, the fast relaxation phenomena are predominant...
2017: PloS One
https://www.readbyqxmd.com/read/28151440/equilibrium-and-kinetics-study-on-removal-of-arsenate-ions-from-aqueous-solution-by-ctab-tio2-and-starch-ctab-tio2-nanoparticles-a-comparative-study
#6
Pankaj Gogoi, Debasish Dutta, Tarun Kr Maji
We present a comparative study on the efficacy of TiO2 nanoparticles for arsenate ion removal after modification with CTAB (N-cetyl-N,N,N-trimethyl ammonium bromide) followed by coating with starch biopolymer. The prepared nanoparticles were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffractometry (XRD), thermogravimetry, scanning electron microscopy (SEM) and electron dispersive X-ray analysis (EDX). The removal efficiency was studied as a function of contact time, material dose and initial As(V) concentration...
February 2017: Journal of Water and Health
https://www.readbyqxmd.com/read/28149246/acute-kidney-injury-in-critically-burned-patients-resuscitated-with-a-protocol-that-includes-low-doses-of-hydroxyethyl-starch
#7
M Sánchez-Sánchez, A Garcia-de-Lorenzo, L Cachafeiro, E Herrero, M J Asensio, A Agrifoglio, E Flores, B Estebanez, P Extremera, C Iglesias, J R Martinez
Acute kidney injury (AKI) is an important complication in burn patients. Recently, it has been recommended that hydroxyethyl starch (HES) be avoided in burn patients because it increases the incidence of AKI. Our purpose was to study incidence of AKI in critically ill burn patients resuscitated with Ringer's solution and supplements of HES. We conducted an observational study of 165 patients admitted to the critical care burn unit (with 30 ± 15% TBSA burned). The main outcome measures were incidence of AKI, contributions of colloids and crystalloids, various severity scores, comorbidities, complications and mortality...
September 30, 2016: Annals of Burns and Fire Disasters
https://www.readbyqxmd.com/read/28123990/formulation-and-development-of-plasma-volume-expander-using-natural-and-modified-starch-from-solanum-tuberosum
#8
Nilima A Thombre, Ajit V Vishwakarma, Trupti S Jadhav, Sanjay J Kshirsagar
BACKGROUND: To formulation and development of plasma volume expander (PVE) by using natural and modified starch from Solanum tuberosum. The function of blood circulation is to provide the needs of the body tissues and to maintain an appropriate environment in all tissue fluids of the body for the optimal survival and functions of the cells. Rapid restoration of the blood volume is necessary to decrease reduction in the amount of the blood. The PVEs are isotonic colloidal solutions, act by increasing the osmotic pressure of the intravascular compartment, which leads to the influx of the interstitial fluids through the capillary pore which, in turn, leads to the increase in the volume of the blood...
October 2016: International Journal of Pharmaceutical Investigation
https://www.readbyqxmd.com/read/28122364/cariogenic-potential-of-sucrose-associated-with-maltodextrin-on-dental-enamel
#9
Gabriela Rezende, Rodrigo A Arthur, Debora Grando, Lina N Hashizume
Maltodextrin is a hydrolysate of cornstarch and has been widely used in the food industry associated with sucrose. The addition of starch can increase the cariogenic potential of sucrose; however, there are sparse data regarding the cariogenicity of sucrose associated with maltodextrin. Therefore, the aim of this study was to test in situ if maltodextrin could increase the cariogenic potential of sucrose. This was an in situ, randomized, crossover, split-mouth, and double-blind study. Volunteers wore palatal appliances containing bovine enamel blocks for 2 periods of 14 days...
January 26, 2017: Caries Research
https://www.readbyqxmd.com/read/28116573/viscosity-reducing-bulky-salt-excipients-prevent-gelation-of-protein-but-not-carbohydrate-solutions
#10
Awanish Kumar, Alexander M Klibanov
The problem of gelation of concentrated protein solutions, which poses challenges for both downstream protein processing and liquid formulations of pharmaceutical proteins, is addressed herein by employing previously discovered viscosity-lowering bulky salts. Procainamide-HCl and the salt of camphor-10-sulfonic acid with L-arginine (CSA-Arg) greatly retard gelation upon heating and subsequent cooling of the model proteins gelatin and casein in water: Whereas in the absence of additives the proteins form aqueous gels within several hours at room temperature, procainamide-HCl for both proteins and also CSA-Arg for casein prevent gel formation for months under the same conditions...
January 23, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28115976/photosynthate-accumulation-in-solar-powered-sea-slugs-starving-slugs-survive-due-to-accumulated-starch-reserves
#11
Elise M J Laetz, Victoria C Moris, Leif Moritz, André N Haubrich, Heike Wägele
BACKGROUND: Solar-powered sea slugs are famed for their ability to survive starvation due to incorporated algal chloroplasts. It is well established that algal-derived carbon can be traced in numerous slug-derived compounds, showing that slugs utilize the photosynthates produced by incorporated plastids. Recently, a new hypothesis suggests that the photosynthates produced are not continuously made available to the slug. Instead, at least some of the plastid's photosynthetic products are stored in the plastid itself and only later become available to the slug...
2017: Frontiers in Zoology
https://www.readbyqxmd.com/read/28115759/preparation-and-properties-of-propylene-oxide-and-octenylsuccinic-anhydride-modified-potato-starches
#12
Ramunė Rutkaitė, Renata Baranauskienė, Laura Pečiulytė, Milda Pukalskienė, Petras Rimantas Venskutonis
Starch was dually chemically modified for developing food-grade ingredients of lower digestibility and their properties were compared to those of single modified and native starches. Hydroxypropylation with propylene oxide (HP) followed by esterification with octenylsuccinic anhydride (OSA) of potato starch (P-native) produced derivatives with lower digestibility than esterification solely with OSA. The dextrose equivalent, maltose and glucose contents, which were used as the main indicators for in vitro digestion, were lower for modified starches...
December 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28115103/adsorptive-removal-of-fluoride-from-drinking-water-using-porous-starch-loaded-with-common-metal-ions
#13
Lingyun Xu, Guijie Chen, Chuanyi Peng, Huanhuan Qiao, Fei Ke, Ruyan Hou, Daxiang Li, Huimei Cai, Xiaochun Wan
In this study, porous corn starch was loaded with Zr, Al, Fe or La to produce the composites PS-Zr, PS-Al, PS-Fe and PS-La. Fluoride adsorption from water was tested at different biosorbent dosages, contact times, solution pH values and initial fluoride concentrations. The biosorbents were characterized by microscopy and spectroscopy. PS-Zr was shown superior defluoridation capacity over a pH range of 3.0-9.0. The adsorption process could be described by the Langmuir isotherm model and the Lagergren pseudo-second-order kinetic model...
March 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28114905/appropriate-nh4-no3-ratio-improves-low-light-tolerance-of-mini-chinese-cabbage-seedlings
#14
Linli Hu, Weibiao Liao, Mohammed Mujitaba Dawuda, Jihua Yu, Jian Lv
BACKGROUND: In northwest of China, mini Chinese cabbage (Brassica pekinensis) is highly valued by consumers, and is widely cultivated during winter in solar-greenhouses where low light (LL) fluence (between 85 and 150 μmol m(-2) s(-1) in day) is a major abiotic stress factor limiting plant growth and crop productivity. The mechanisms with which various NH4(+): NO3(-) ratios affected growth and photosynthesis of mini Chinese cabbage under normal (200 μmol m(-2) s(-1)) and low (100 μmol m(-2) s(-1)) light conditions was investigated...
January 23, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28109131/changes-in-serum-creatinine-concentration-and-acute-kidney-injury-aki-grade-in-dogs-treated-with-hydroxyethyl-starch-130-0-4-from-2013-to-2015
#15
N E Sigrist, N Kälin, A Dreyfus
BACKGROUND: Hydroxyethyl starch (HES) solutions may cause acute kidney injury (AKI) in humans. OBJECTIVE: To compare AKI grades in 94 dogs exposed and 90 dogs that were unexposed to 6% HES-130/0.4. ANIMALS: Dogs receiving 6% HES-130/0.4 (HES cohort) or crystalloids (unexposed cohort) between 2013 and 2015. METHODS: Historical cohort study. Diagnosis, total cumulative dose and total mL/kg of HES administered, time frame of HES administration and serum creatinine concentrations up to 90 days after initiation of HES treatment were retrospectively reviewed...
January 21, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28108413/investigation-of-pectin-starch-hydrogel-as-a-carrier-for-oral-delivery-of-probiotic-bacteria
#16
Alireza Dafe, Hossein Etemadi, Azita Dilmaghani, Gholam Reza Mahdavinia
The present study highlights the fabrication of novel food-grade hydrogel particles based on pectin and starch for probiotic colon delivery. Lactobacillus plantarum ATCC:13643 (L. plantarum) cells were encapsulated in pectin/starch hydrogels by extrusion method. Four batches were formulated with different ratios of starch/pectin solutions. Optical and scanning electron microscopy obviously showed the random distribution of L. plantarum throughout the hydrogel network. The viability of encapsulated cells in simulated gastric fluid (SGF) and bile salt solution was significantly higher when compared to nonencapsulated cells...
April 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28099892/a-novel-starch-based-stimuli-responsive-nanosystem-for-theranostic-applications
#17
Nahid Poorgholy, Bakhshali Massoumi, Mehdi Jaymand
The aim of this study was to synthesis and characterization of a novel stimuli-responsive polymeric nanosystem for theranostic applications. For this purpose, starch was modified by itaconic anhydride to afford an itaconat-functionalized starch macromonomer (starch-IA). This macromonomer with carboxylic functional groups was subsequently adsorbed onto the surface of iron oxide nanoparticles (Fe3O4 NPs), and then copolymerized with N-isopropylacrylamide (NIPAAm) monomer via a 'free' radical initiated polymerization technique to produce a temperature-responsive magnetic nanohydrogel (MNHG)...
April 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28098196/enhanced-removal-of-as-v-from-aqueous-solution-using-modified-hydrous-ferric-oxide-nanoparticles
#18
Lijuan Huo, Xibai Zeng, Shiming Su, Lingyu Bai, Yanan Wang
Hydrous ferric oxide (HFO) is most effective with high treatment capacity on arsenate [As(V)] sorption although its transformation and aggregation nature need further improvement. Here, HFO nanoparticles with carboxymethyl cellulose (CMC) or starch as modifier was synthesized for the purpose of stability improvement and As(V) removal from water. Comparatively, CMC might be the optimum stabilizer for HFO nanoparticles because of more effective physical and chemical stability. The large-pore structure, high surface specific area, and the non-aggregated nature of CMC-HFO lead to increased adsorption sites, and thus high adsorption capacities of As(V) without pre-treatment (355 mg·g(-1)), which is much greater than those reported in previous studies...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098049/influence-of-barley-grain-particle-size-and-treatment-with-citric-acid-on-digestibility-ruminal-fermentation-and-microbial-protein-synthesis-in-holstein-calves
#19
M Kazemi-Bonchenari, A Z M Salem, S López
Chemical and physical treatments of barley grain increase ruminally resistant starch and can improve the rumen fermentation pattern. The objective of the present study was to evaluate the effects of chemical (addition of citric acid, CA) and physical (grinding to two different particle sizes, PS) treatment of barley grain on performance, rumen fermentation, microbial protein yield in the rumen and selected blood metabolites in growing calves. In all, 28 male Holstein calves (172±5.1 kg initial BW) were used in a complete randomised design with a factorial arrangement of 2 barley grain particle sizes×2 levels of citric acid...
January 18, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28094478/fluid-management-in-cardiac-surgery-patients-pitfalls-challenges-and-solutions
#20
Elena Bignami, Marcello Guarnieri, Marco Gemma
Fluid administration is a powerful tool for hemodynamic stabilization as it increases preload and improves cardiac function in fluid-responsive patients. However, there are various types of fluid to choose from. The use of colloids and crystalloids in non-cardiac Intensive Care Units (ICU) has been reported, showing controversial results. Many trials on sepsis in a non-cardiac ICU setting show that colloids, in particular hydroxyethyl starches and gelatins, might have a detrimental effect on kidney function, and on major outcomes such as mortality...
January 17, 2017: Minerva Anestesiologica
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