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https://www.readbyqxmd.com/read/28506935/retrosynthesis-of-caco3-via-amorphous-precursor-particles-using-gastroliths-of-the-red-claw-lobster-cherax-quadricarinatus
#1
Andrónico Neira-Carrillo, María Soledad Fernández, Gonzalo Poblete Hevia, José Luis Arias, Denis Gebauer, Helmut Cölfen
Gastroliths are highly calcified structures formed in the cardiac stomach wall of crustaceans for the temporary storage of amorphous CaCO3 (ACC). The gastrolithic ACC is stabilized by the presence of biomolecules, and represents a novel model for research into biomineralization. For the first time, an in vitro biomimetic retrosynthesis of scaffolds of gastrolithic matrices with CaCO3 is presented. With the help of synthetic polyacrylic (PAA) and phytic (PA) acids, amorphous precursor particles were stabilized in double (DD) and gas (GD) diffusion crystallization assays...
May 12, 2017: Journal of Structural Biology
https://www.readbyqxmd.com/read/28504139/the-protective-role-of-phytate-in-the-oxidative-degradation-of-cereal-beta-glucans
#2
Yu-Jie Wang, Ruzhen Zhan, Tuula Sontag-Strohm, Ndegwa Henry Maina
This study investigated the role of phytate in the Fenton reaction induced oxidative degradation of cereal β-glucan. Viscosity analysis showed that the degradation rate was high in the beginning of oxidation, which fitted to the second order kinetic model. Oat β-glucan contained significant amount of residual phytate and after the residual phytate was removed, faster degradation was shown compared to the original oat β-glucan. Adding the same amount of phytic acid (PA) to the phytate removed β-glucan sample also retarded the degradation but not as efficiently as the residual phytate...
August 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28503053/pea-pisum-sativum-and-its-anticancer-activity
#3
REVIEW
Runchana Rungruangmaitree, Wannee Jiraungkoorskul
Pisum sativum (Family: Fabaceae), as known as green pea or garden pea, has long been important in diet due to its content of fiber, protein, starch, trace elements, and many phytochemical substances. It has been shown to possess antibacterial, antidiabetic, antifungal, anti-inflammatory, antihypercholesterolemia, and antioxidant activities and also shown anticancer property. Its nonnutritive biologically active components include alkaloids, flavonoids, glycosides, isoflavones, phenols, phytosterols, phytic acid, protease inhibitors, saponins, and tannins...
January 2017: Pharmacognosy Reviews
https://www.readbyqxmd.com/read/28482506/determination-of-copper-ions-using-a-phytic-acid-polypyrrole-nanowires-modified-glassy-carbon-electrode
#4
Nan Wang, Hongxiu Dai, Donglei Wang, Houyi Ma, Meng Lin
This study reports a sensitive electro-analytical method for the determination of trace amounts of Cu(2+) using a phytate functionalized polypyrrole nanowires (PPy NWs) modified glass carbon electrode. The phytic acid/polypyrrole (PA/PPy) NWs were prepared by an electrostatic adsorption and ultrasonic mixing. The results showed that both PPy NWs and PA/PPy NWs modified glassy carbon electrodes have electrochemical responses toward Cu(2+). However, owing to the synergistic contribution between the PPy NWs and PA, the PA/PPy NWs modified electrode exhibited higher sensitivity than that of PPy NWs modified electrode...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28481273/agronomic-approach-of-zinc-biofortification-can-increase-zinc-bioavailability-in-wheat-flour-and-thereby-reduce-zinc-deficiency-in-humans
#5
Dunyi Liu, Yumin Liu, Wei Zhang, Xinping Chen, Chunqin Zou
Zinc (Zn) deficiency is a common disorder of humans in developing countries. The effect of Zn biofortification (via application of six rates of Zn fertilizer to soil) on Zn bioavailability in wheat grain and flour and its impacts on human health was evaluated. Zn bioavailability was estimated with a trivariate model that included Zn homeostasis in the human intestine. As the rate of Zn fertilization increased, the Zn concentration increased in all flour fractions, but the percentages of Zn in standard flour (25%) and bran (75%) relative to total grain Zn were constant...
May 6, 2017: Nutrients
https://www.readbyqxmd.com/read/28447774/nitrogen-and-phosphorus-codoped-mesoporous-carbon-derived-from-polypyrrole-as-superior-metal-free-electrocatalyst-toward-the-oxygen-reduction-reaction
#6
Zhengping Zhang, Junting Sun, Meiling Dou, Jing Ji, Feng Wang
To replace high-cost platinum group metal (PGM) electrocatalysts for oxygen reduction reaction (ORR) that is the crucial cathode reaction in fuel cell technology and metal-air battery, the development of low-cost and high-efficiency non-PGM catalysts for ORR has attracted much attention during the past decades. As one of the promising candidates, N-doped carbon is highly desirable for its strong designability and outstanding catalytic activity and stability. In this work, a facile and rational strategy is demonstrated for preparation of N,P-codoped mesoporous carbon (N,P-MC) for ORR by the direct pyrolysis treatment of polypyrrole with phytic acid as P-dopant and polystyrene sphere as template...
May 2, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28444586/cereal-phytases-and-their-importance-in-improvement-of-micronutrients-bioavailability
#7
REVIEW
Amit Vashishth, Sewa Ram, Vikas Beniwal
Phytic acid is a main reservoir of phosphorous (P) in plants and contributes to about 80% of the total P in cereal seeds. However, it is well known to possess anti-nutritional behavior. Because it has strong affinity to chelate divalent ions e.g. calcium, magnesium, and especially with iron and zinc. Therefore, it is extremely poor as a dietary source of P. To enhance bio-availability of micronutrients, an enzyme namely phytase is known to hydrolyze phytic acid. Unfortunately, phytase is not produced in the stomach of monogastric animals and humans...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28429156/crystallization-and-preliminary-x-ray-diffraction-analysis-of-a-mammal-inositol-1-3-4-5-6-pentakisphosphate-2-kinase
#8
Elsa Franco-Echevarría, Julia Sanz-Aparicio, Nathalie Troffer-Charlier, Arnaud Poterszman, Beatriz González
Inositol 1,3,4,5,6-pentakisphosphate 2-kinase (IP5 2-K) is an enzyme that catalyses the formation of phytic acid (IP6) from IP5 and ATP. In mammals, IP6 is involved in multiple events such as DNA repair and mRNA edit and it is the precursor of inositol pyrophosphates, emerging compounds shown to have an essential role in apoptosis. In addition, IP5 2-K have functions in cells independently of its catalytic activity, for example in rRNA biogenesis. We pursue the structure determination of a mammal IP5 2-K by Protein Crystallography...
April 21, 2017: Protein Journal
https://www.readbyqxmd.com/read/28424946/preparation-and-corrosion-resistance-of-magnesium-phytic-acid-hydroxyapatite-composite-coatings-on-biodegradable-az31-magnesium-alloy
#9
Min Zhang, Shu Cai, Feiyang Zhang, Guohua Xu, Fengwu Wang, Nian Yu, Xiaodong Wu
In this work, a magnesium phytic acid/hydroxyapatite composite coating was successfully prepared on AZ31 magnesium alloy substrate by chemical conversion deposition technology with the aim of improving its corrosion resistance and bioactivity. The influence of hydroxyapatite (HA) content on the microstructure and corrosion resistance of the coatings was investigated. The results showed that with the increase of HA content in phytic acid solution, the cracks on the surface of the coatings gradually reduced, which subsequently improved the corrosion resistance of these coated magnesium alloy...
June 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28392693/sustained-release-of-anticancer-agent-phytic-acid-from-its-chitosan-coated-magnetic-nanoparticles-for-drug-delivery-system
#10
Farahnaz Barahuie, Dena Dorniani, Bullo Saifullah, Sivapragasam Gothai, Mohd Zobir Hussein, Ashok Kumar Pandurangan, Palanisamy Arulselvan, Mohd Esa Norhaizan
Chitosan (CS) iron oxide magnetic nanoparticles (MNPs) were coated with phytic acid (PTA) to form phytic acid-chitosan-iron oxide nanocomposite (PTA-CS-MNP). The obtained nanocomposite and nanocarrier were characterized by powder X-ray diffraction, Fourier transform infrared spectroscopy, vibrating sample magnetometry, transmission electron microscopy, and thermogravimetric and differential thermogravimetric analyses. Fourier transform infrared spectra and thermal analysis of MNPs and PTA-CS-MNP nanocomposite confirmed the binding of CS on the surface of MNPs and the loading of PTA in the PTA-CS-MNP nanocomposite...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28385215/a-green-approach-to-constructing-multilayered-nanocoating-for-flame-retardant-treatment-of-polyamide-66-fabric-from-chitosan-and-sodium-alginate
#11
Chanchal Kumar Kundu, Wei Wang, Shun Zhou, Xin Wang, Haibo Sheng, Ying Pan, Lei Song, Yuan Hu
Green polyelectrolytes including chitosan (CS), phytic acid (PA) and oxidized sodium alginate (OSA) were deposited on polyamide 66 (PA66) fabrics in a quadralayer (QL) fashion like (CS-PA-CS-OSA)n (where "n" denotes the number of quadra layers) via layer-by-layer (LbL) assembly to improve the flame retardant property. In the vertical burning test, the PA66 fabric with 10 and 15 QL depositions could stop the melt-dripping. Cone calorimetry results showed that a maximum reduction (24%) in the peak heat release rate was achieved for the PA66 fabric with 5 QL depositions...
June 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28375121/antioxidant-activity-and-nutritional-assessment-of-under-utilized-medicinal-plants
#12
Anwar Ali Shad, Jehan Bakht, Hamid Ullah Shah, Yosuaf Hayat
The present study investigates the nutritive and anti-nutritive composition of six species (Allium porrum, Amaranthus spinosis, Apium graveolens, Caralluma edulis, Chenopodium album, Urtica dioica). The studied species contained considerable amount of crude protein (4.53-11.41%), crude fat (1.25-3.74%), vitamin C (7.85-28.09mg 100(-1) g) and β-Carotene (18.29-169.33mg 100(-1)g). The mineral profile of Chenopodium album is considered as potential source of Zn (14.51±1.14mg 100-1g), Mn (67.71±0.85mg 100(-1)g), Se (8...
November 2016: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28373697/phytic-acid-as-alternative-setting-retarder-enhanced-biological-performance-of-dicalcium-phosphate-cement-in-vitro
#13
Susanne Meininger, Carina Blum, Martha Schamel, Jake E Barralet, Anita Ignatius, Uwe Gbureck
Dicalcium phosphate cement preparation requires the addition of setting retarders to meet clinical requirements regarding handling time and processability. Previous studies have focused on the influence of different setting modifiers on material properties such as mechanical performance or injectability, while ignoring their influence on biological cement properties as they are used in low concentrations in the cement pastes and the occurrence of most compounds in human tissues. Here, analyses of both material and biological behavior were carried out on samples with common setting retardants (citric acid, sodium pyrophosphate, sulfuric acid) and novel (phytic acid)...
April 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28372252/quantification-of-inositol-phosphates-in-almond-meal-and-almond-brown-skins-by-hplc-esi-ms
#14
Quynh H Duong, Kevin D Clark, Karen G Lapsley, Ronald B Pegg
The extraction and measurement of all six forms of inositol phosphates (InsPs) in almond meal and brown skins were improved from existing methods by pH adjustment, supplementation of EDTA, and rapid analysis via anion-exchange high-performance liquid chromatography coupled with electrospray ionization mass spectrometry. The quantity of InsPs in six major almond cultivars ranged from 8 to 12μmol/g in the meal and 5 to 14μmol/g in the brown skins. InsP6 was the dominant form, but lower forms still accounted for ∼20% of the total InsPs molar concentration in a majority of the samples...
August 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28352273/biofortification-of-wheat-cultivars-to-combat-zinc-deficiency
#15
Muhammad U Chattha, Muhammad U Hassan, Imran Khan, Muhammad B Chattha, Athar Mahmood, Muhammad U Chattha, Muhammad Nawaz, Muhammad N Subhani, Mina Kharal, Sadia Khan
Zinc (Zn) deficiency caused by inadequate dietary intake is a global nutritional problem, particularly in developing countries. Therefore, zinc biofortification of wheat and other cereal crops is being urgently addressed and highly prioritized as a research topic. A field study was planned to evaluate the influence of zinc application on grain yield, grain zinc content, and grain phytic acid concentrations of wheat cultivars, and the relationships between these parameters. Three wheat cultivars, C1 = Faisalabad-2008, C2 = Punjab-2011, and C3 = Millet-2011 were tested with five different methods of zinc application: T1 = control, T2 = seed priming, T3 = soil application, T4 = foliar application, and T5 = soil + foliar application...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28321825/effect-of-feeding-soy-milk-fermented-by-probiotic-bacteria-on-some-blood-criteria-and-weight-of-experimental-animals
#16
Alaa Kareem Niamah, Ali Ahmed Sahi, Alaa S N Al-Sharifi
The chemical composition of soy milk fermented by probiotic starter (Log.11.1 CFU/ml) which consists of Streptococcus thermophilus, Lactobacillus acidophilus LA-5, and Bifidobacterium bifidum Bb-12 was studied. The percentage of each moisture, protein, fat, ash, carbohydrate and total acidity were 88.8, 4.2, 2.3, 0.82, 4.6, and 0.83, respectively, and the phytic acid rate was 0.075% after fermentation. The experimental animals were fed with 3 mL and 2 mL of soy milk fermented for 40 days. The result showed decreasing the rate of cholesterol and triglyceride in T1 treatment (3 mL of soy milk fermented) which were (114...
March 21, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28318254/phosphate-fertilizer-and-growing-environment-change-the-phytochemicals-oil-quality-and-nutritional-composition-of-roundup-ready-genetically-modified-and-conventional-soybean
#17
Tatiane Scilewski da Costa Zanatta, Roberta Manica-Berto, Cristiano Dietrich Ferreira, Michele Maciel Crizel Cardozo, Cesar Valmor Rombaldi, Rui Carlos Zambiazi, Álvaro Renato Guerra Dias
Phosphorus (P) intake, genotype, and growth environment in soybean cultivation can affect the composition of the soybean. This experiment was conducted in two locations (microregions I and II) using a randomized complete block design, including conventional soybean (BRS Sambaíba) and genetically modified (GM) [Msoy 9144 Roundup Ready (RR)] cultivars and varying doses of phosphorus fertilizer (0, 60, 120, and 240 kg/ha P2O5). Soybeans were evaluated for chemical composition, total phenols, phytic acid content, individual isoflavone content, antioxidant activity, oil quality, fatty acid profile, total carotenoid content, and individual tocopherol contents...
March 24, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28317483/a-critical-review-of-bioactive-food-components-and-of-their-functional-mechanisms-biological-effects-and-health-outcomes
#18
Rosa Pérez-Gregorio, Jesús Simal-Gándara
BACKGROUND: Eating behaviours are closely related to some medical conditions potentially leading to death such as cancer, cardiovascular disease and diabetes. Healthy eating practices, maintaining a normal weight, and regular physical activity could prevent up to 80% of coronary heart disease, 90% of type-2 diabetes and one-third of all cancers[1]. METHOD: Over the last two decades, the food industry has invested much effort in research and development of healthier, more nutritious foods...
March 17, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28303054/genetic-variability-for-iron-and-zinc-as-well-as-antinutrients-affecting-bioavailability-in-black-gram-vigna-mungo-l-hepper
#19
Jagdish Singh, Rajani Kanaujia, A K Srivastava, G P Dixit, N P Singh
The mineral content of pulses is generally high, but the bioavailability is poor due to the presence of phytate and polyphenols which inhibits Fe absorption. In the present study, the genetic variability and heritability for seed Fe and Zn content was studied. The effect of genotypes was significant for all the quality traits indicating presence of enough variability among the blackgram genotypes for the traits. The Fe content in 26 blackgram genotypes ranged from 71.02 to 100.20 ppm, whereas Zn content ranged from 18...
March 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28303053/comparison-of-color-anti-nutritional-factors-minerals-phenolic-profile-and-protein-digestibility-between-hard-to-cook-and-easy-to-cook-grains-from-different-kidney-bean-phaseolus-vulgaris-accessions
#20
Naincy Parmar, Narpinder Singh, Amritpal Kaur, Sheetal Thakur
The present study was aimed to evaluate the differences among anti-nutritional factors in relation to mineral absorption and protein digestibility of Easy-to-cook (ETC) and Hard-to-cook (HTC) grains from different kidney bean (KB) accessions.HTC grains showed lower a* (redness to yellowness) and b* (greenness to blueness) values and L* value than ETC grains. HTC grains had significantly higher Ca and Zn and lower Cu, Mn and Fe than ETC grains. ETC and HTC grains showed significant variation in mineral, total phenolic content (TPC), tannin and phytic acid content...
March 2017: Journal of Food Science and Technology
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