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https://www.readbyqxmd.com/read/28076998/phosphate-phytate-and-phytases-in-plants-from-fundamental-knowledge-gained-in-arabidopsis-to-potential-biotechnological-applications-in-wheat
#1
David Secco, Nadia Bouain, Aida Rouached, Chanakan Prom-U-Thai, Moez Hanin, Ajay K Pandey, Hatem Rouached
Phosphorus (P) is an essential macronutrient for all living organisms. In plants, P is taken up from the rhizosphere by the roots mainly as inorganic phosphate (Pi), which is required in large and sufficient quantities to maximize crop yields. In today's agricultural society, crop yield is mostly ensured by the excessive use of Pi fertilizers, a costly practice neither eco-friendly or sustainable. Therefore, generating plants with improved P use efficiency (PUE) is of major interest. Among the various strategies employed to date, attempts to engineer genetically modified crops with improved capacity to utilize phytate (PA), the largest soil P form and unfortunately not taken up by plants, remains a key challenge...
January 12, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/28036002/novel-peptide-with-specific-calcium-binding-capacity-from-schizochytrium-sp-protein-hydrolysates-and-calcium-bioavailability-in-caco-2-cells
#2
Xixi Cai, Jiaping Lin, Shaoyun Wang
Peptide-calcium can probably be a suitable supplement to improve calcium absorption in the human body. In this study, a specific peptide Phe-Tyr (FY) with calcium-binding capacity was purified from Schizochytrium sp. protein hydrolysates through gel filtration chromatography and reversed phase HPLC. The calcium-binding capacity of FY reached 128.77 ± 2.57 μg/mg. Results of ultraviolet spectroscopy, fluorescence spectroscopy, and infrared spectroscopy showed that carboxyl groups, amino groups, and amido groups were the major chelating sites...
December 27, 2016: Marine Drugs
https://www.readbyqxmd.com/read/28031193/associations-of-dietary-lifestyle-and-sociodemographic-factors-with-iron-status-in-chinese-adults-a-cross-sectional-study-in-the-china-health-and-nutrition-survey
#3
Peter J Hu, Sylvia H Ley, Shilpa N Bhupathiraju, Yanping Li, Dong D Wang
BACKGROUND: Although a high prevalence of anemia and related disease burden have been documented in China, limited evidence is available on the current population-level iron status and risk factors for iron imbalance. OBJECTIVE: We explored the associations of dietary, lifestyle, and sociodemographic factors with iron status in Chinese adults. DESIGN: Our study population consisted of 7672 adults aged 18-65 y from the 2009 China Health and Nutrition Survey...
December 28, 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28009050/factors-influencing-micronutrient-bioavailability-in-biofortified-crops
#4
Aurélie Bechoff, Claudie Dhuique-Mayer
Dietary and human factors have been found to be the major factors influencing the bioavailability of micronutrients, such as provitamin A carotenoid (pVAC), iron, and zinc, in biofortified crops. Dietary factors are related to food matrix structure and composition. Processing can improve pVAC bioavailability by disrupting the food matrix but can also result in carotenoid losses. By degrading antinutrients, such as phytate, processing can also enhance mineral bioavailability. In in vivo interventions, biofortified crops have been shown to be overall efficacious in reducing micronutrient deficiency, with bioconversion factors varying between 2...
December 23, 2016: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28003206/a-moderate-increase-in-dietary-zinc-reduces-dna-strand-breaks-in-leukocytes-and-alters-plasma-proteins-without-changing-plasma-zinc-concentrations
#5
Sarah J Zyba, Swapna V Shenvi, David W Killilea, Tai C Holland, Elijah Kim, Adrian Moy, Barbara Sutherland, Virginia Gildengorin, Mark K Shigenaga, Janet C King
BACKGROUND: Food fortification has been recommended to improve a population's micronutrient status. Biofortification techniques modestly elevate the zinc content of cereals, but few studies have reported a positive impact on functional indicators of zinc status. OBJECTIVE: We determined the impact of a modest increase in dietary zinc that was similar to that provided by biofortification programs on whole-body and cellular indicators of zinc status. DESIGN: Eighteen men participated in a 6-wk controlled consumption study of a low-zinc, rice-based diet...
December 21, 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28002408/reducing-phosphorus-accumulation-in-rice-grains-with-an-impaired-transporter-in-the-node
#6
Naoki Yamaji, Yuma Takemoto, Takaaki Miyaji, Namiki Mitani-Ueno, Kaoru T Yoshida, Jian Feng Ma
Phosphorus is an important nutrient for crop productivity. More than 60% of the total phosphorus in cereal crops is finally allocated into the grains and is therefore removed at harvest. This removal accounts for 85% of the phosphorus fertilizers applied to the field each year. However, because humans and non-ruminants such as poultry, swine and fish cannot digest phytate, the major form of phosphorus in the grains, the excreted phosphorus causes eutrophication of waterways. A reduction in phosphorus accumulation in the grain would contribute to sustainable and environmentally friendly agriculture...
December 21, 2016: Nature
https://www.readbyqxmd.com/read/27995999/tissue-specific-transcript-profiling-of-wheat-phosphate-transporter-genes-and-its-association-with-phosphate-allocation-in-grains
#7
Vishnu Shukla, Mandeep Kaur, Sipla Aggarwal, Kaushal Kumar Bhati, Jaspreet Kaur, Shrikant Mantri, Ajay K Pandey
Approaches enabling efficient phosphorus utilization in crops are of great importance. In cereal crop like wheat, utilization of inorganic phosphate (Pi) is high and mature grains are the major sink for Pi utilization and storage. Research that addresses the importance of the Pi homeostasis in developing grains is limited. In an attempt to understand the Pi homeostasis in developing wheat grains, we identified twelve new phosphate transporters (PHT), these are phyologentically well distributed along with the members reported from Arabidopsis and rice...
December 20, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27983815/imaging-organophosphate-and-pyrophosphate-sequestration-on-brucite-by-in-situ-atomic-force-microscopy
#8
Lijun Wang, Christine V Putnis, Helen E King, Jörn Hövelmann, Encarnación Ruiz-Agudo, Andrew Putnis
In order to evaluate the organic phosphorus (OP) and pyrophosphate (PyroP) cycle and their fate in the environment, it is critical to understand the effects of mineral interfaces on the reactivity of adsorption and precipitation of OP and PyroP. Here, in situ atomic force microscopy (AFM) is used to directly observe the kinetics of coupled dissolution-precipitation on cleaved (001) surfaces of brucite [Mg(OH)2] in the presence of phytate, glucose-6-phosphate (G6P) and pyrophosphate, respectively. AFM results show that the relative order of contribution to mineral surface adsorption and precipitation is phytate > pyrophosphate > G6P under the same solution conditions and can be quantified by the induction time of OP/PyroP-Mg nucleation in a boundary layer at the brucite-water interface...
January 3, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/27979151/chemical-composition-of-brazilian-chia-seeds-grown-in-different-places
#9
Bárbara Pereira da Silva, Pamella Cristine Anunciação, Jessika Camila da Silva Matyelka, Ceres Mattos Della Lucia, Hércia Stampini Duarte Martino, Helena Maria Pinheiro-Sant'Ana
This study investigated and compared the occurrence and concentration of macronutrients, moisture, ash, dietary fiber, fatty acids, minerals, carotenoids, vitamins, flavonoids, phenolic compounds, antioxidant activity, phytate and tannin in Brazilian chia seeds grown in the states of Mato Grosso (MT) and Rio Grande do Sul (RS). High concentrations of lipids (31.2g.100g(-1), on average), proteins (18.9g.100g(-1), on average), dietary fiber (35.3g.100g(-1), on average), vitamin E (8,203.6μg.100g(-1), on average) were observed...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27956868/the-effect-of-dry-yeast-fermentation-on-chemical-composition-and-protein-characteristics-of-blue-lupin-seeds
#10
Małgorzata Kasprowicz-Potocka, Paulina Borowczyk, Anita Zaworska, Włodzimierz Nowak, Andrzej Frankiewicz, Piotr Gulewicz
The effect of 24-hour fermentation of lupin seeds by different yeast strains on their chemical composition was determined. After fermentation, the mass fraction of proteins increased and their in vitro digestibility and biological activity significantly improved. The amino acid profile of fermented products was similar to that of raw lupin seeds. The significant reduction in the mass fraction of oligosaccharides and phytate, but not of alkaloids was found. The pH level of fermented products decreased as a consequence of the increase of lactic and propionic acid mass fractions...
September 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27931105/a-recurrence-of-pancreatic-non-functioning-neuroendocrine-tumor-mimicking-splenosis
#11
Yeon Ji Kim, Chang Nyol Paik
There have been a number of case reports where intra-abdominal splenosis or accessory spleens have mimicked metastatic cancer. However, to the best of our knowledge, this to be the first report of a Tc-99m phytate scintigraphy study in English literature showed the uptake in the metastatic mass of pancreatic NET which had been resected for 19 years ago. Although a nuclear scintigraphy is useful method to differentiate between abdominal splenosis and metastatic cancer, the histopathological confirmation should be considered...
December 2016: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/27926501/abdominal-radical-trachelectomy-guided-by-sentinel-lymph-node-biopsy-for-stage-ib1-cervical-cancer-with-tumors-2-cm
#12
Xiangyun Deng, Ying Zhang, Dapeng Li, Xiaoling Zhang, Hui Guo, Fei Wang, Xiugui Sheng
Accuracy of prediction of pelvic lymph node status using sentinel lymph node biopsy (SLNB), and outcomes of SLNB-guided abdominal radical trachelectomy (ART) were assessed. Patients with stage IB1 (Figure 2009) cervical cancer and with tumors >2 cm were enrolled. Prior to fertility-sparing surgery 99mTc-labeled phytate was administered. SLNs were intraoperatively identified, excised, and assessed using fast-frozen sections. Systematic bilateral pelvic lymphadenectomy with or without para-aortic lymphadenectomy was subsequently undertaken...
December 3, 2016: Oncotarget
https://www.readbyqxmd.com/read/27894040/plausible-exploitation-of-jatropha-de-oiled-seed-cake-for-lipase-and-phytase-production-and-simultaneous-detoxification-by-candida-parapsilosis-isolated-from-poultry-garbage
#13
Balakrishna Kannoju, Swaruparani Ganapathiwar, Hanumalal Nunavath, Bindu Sunkar, Bhima Bhukya
Jatropha de-oiled seed cake was explored to utilize as a basic nutrient source for Candida parapsilosis, isolated from poultry garbage and selected based on the production of lipase and phytase enzymes under submerged fermentation. At optimized parameters under solid-state fermentation, lipase and phytase activities were recorded as 1056.66±2.92 and 833±2.5U/g of substrate (U/g), respectively. Besides enzyme production, complete elimination of phorbol esters and significant phytate reduction from 6.51±0...
February 2017: Bioresource Technology
https://www.readbyqxmd.com/read/27889417/dietary-zinc-and-incident-calcium-kidney-stones-in-adolescence
#14
Gregory E Tasian, Michelle E Ross, Lihai Song, Robert W Grundmeier, James Massey, Michelle R Denburg, Lawrence Copelovitch, Steven Warner, Thomas Chi, David W Killilea, Marshall L Stoller, Susan L Furth
PURPOSE: To determine the association between dietary zinc intake and incident calcium kidney stones and examine the relationship between dietary zinc intake and urinary zinc excretion among adolescents. MATERIAL AND METHODS: This study was a nested case-control study conducted within a large pediatric healthcare system. Three 24-hour dietary recalls and spot urine chemistries were obtained for 30 participants aged 12-18 years with a first idiopathic calcium-based kidney stone and 30 healthy controls, matched on age, sex, race, and month of enrollment...
November 23, 2016: Journal of Urology
https://www.readbyqxmd.com/read/27886388/phytate-calcium-molar-ratio-does-not-predict-accessibility-of-calcium-in-ready-to-eat-dishes
#15
Daniela Erba, Federica Manini, Erika Meroni, Maria C Casiraghi
BACKGROUND: Phytic acid (PA), a naturally occurring compound of plant food, is generally considered to affect mineral bioavailability. The aim of this study was to investigate the reliability of the PA/calcium molar ratio as a predictive factor of calcium accessibility in composed dishes and their ingredients. RESULTS: We chose dishes whose ingredients were rich in Ca (milk or cheese) or in PA (whole-wheat cereals) in order to consider a range of PA/Ca ratios (from 0 to 2...
November 25, 2016: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/27849040/forms-and-lability-of-phosphorus-in-algae-and-aquatic-macrophytes-characterized-by-solution-31-p-nmr-coupled-with-enzymatic-hydrolysis
#16
Weiying Feng, Yuanrong Zhu, Fengchang Wu, Zhongqi He, Chen Zhang, John P Giesy
Solution Phosphorus-31 nuclear magnetic resonance ((31)P NMR) spectroscopy coupled with enzymatic hydrolysis (EH) with commercially available phosphatases was used to characterize phosphorus (P) compounds in extracts of the dominant aquatic macrophytes and algae in a eutrophic lake. Total extractable organic P (Po) concentrations ranged from 504 to 1643 mg kg(-1) and 2318 to 8395 mg kg(-1) for aquatic macrophytes and algae, respectively. Using (31)P NMR spectroscopy, 11 Po species were detected in the mono- and diester region...
November 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27848267/the-impacts-of-hammer-mill-screen-size-and-grain-particle-size-on-the-performance-of-broiler-chickens-offered-diets-based-on-two-red-sorghum-varieties
#17
P H Selle, H H Truong, A Khoddami, A F Moss, T H Roberts, S Y Liu
The two red grain sorghums were extensively characterised. Kafirin, polyphenolic compounds, free, conjugated and bound phenolic acids, phytate concentrations and starch pasting profiles were determined. The experiment consisted of a 2 × 4 factorial array of dietary treatments comprising two red sorghum varieties (Tiger and Block I) ground through 4 hammer-mill screen sizes (2.0, 3.2, 4.8 6.0 mm) prior to incorporation into nutritionally equivalent diets. Eight steam-pelleted dietary treatments were each offered to 7 replicates (6 male Ross 308 birds per cage) from 7 to 28 d post-hatch...
December 12, 2016: British Poultry Science
https://www.readbyqxmd.com/read/27813616/is-sentinel-node-mapping-possible-in-surgically-removed-ectopic-axillary-breast-cancer-a-case-report
#18
Royasadat Alavifard, Sima Kadkhodayan, Fatemeh Homaee Shandiz, Vahid Reza Dabbagh, Ramin Sadeghi
We reported a 24-year-old female patient with the history of ectopic axillary breast cancer which was removed surgically. Sentinel node mapping was performed for lymphatic axillary staging of this patient with two injections of the 99m-Tc-phytate in both ends of the surgical scar. Lymphoscintigraphy showed an axillary sentinel node which was harvested during surgery and was not pathologically involved. Our case showed that sentinel node mapping is possible for ectopic axillary breast cancer patients even after excisional biopsy of the index lesion...
2016: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/27807786/cost-effective-enhanced-iron-bioavailability-in-rice-grain-grown-on-calcareous-soil-by-sulfur-mediation-and-its-effect-on-heavy-metals-mineralization
#19
Pia Muhammad Adnan Ramzani, Muhammad Khalid, Shazia Anjum, Waqas-Ud-Din Khan, Shafaqat Ali, Fakhir Hannan, Muhammad Iqbal
Calcareous soil, high pH, and low organic matter are the major factors that limit iron (Fe) availability to rice crop. The present study was planned with the aim to biofortified rice grain with Fe, by integrated use of chemical and organic amendments in pH-manipulated calcareous soil. The soil pH was reduced (pHL2) by using elemental sulfur (S) at the rate of 0.25 % (w/w). The organic amendments, biochar (BC) and poultry manure (PM) [1 % (w/w)], along with ferrous sulfate at the rate of 7.5 mg kg(-1) soil were used...
November 2, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27796999/using-solid-13-c-nmr-coupled-with-solution-31-p-nmr-spectroscopy-to-investigate-molecular-species-and-lability-of-organic-carbon-and-phosphorus-from-aquatic-plants-in-tai-lake-china
#20
Shasha Liu, Yuanrong Zhu, Fengchang Wu, Wei Meng, Hao Wang, Zhongqi He, Wenjing Guo, Fanhao Song, John P Giesy
Forms and labilities of plant-derived organic matters (OMs) including carbon (C) and phosphorus (P) were fundamental for understanding their release, degradation and environmental behaviour in lake ecosystems. Thus, solid (13)C and solution (31)P nuclear magnetic resonance (NMR) spectroscopy were used to characterize biomass of six aquatic plants in Tai Lake, China. The results showed that carbohydrates (61.2% of the total C) were predominant C functional group in the solid (13)C NMR spectra of plant biomass, which may indicate high lability and bioavailability of aquatic plants-derived organic matter in lakes...
October 31, 2016: Environmental Science and Pollution Research International
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