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https://www.readbyqxmd.com/read/28205239/bioprocessing-of-common-beans-in-diets-for-tilapia-in-vivo-digestibility-and-antinutritional-factors
#1
Francisco Valdez-González, Roberto Gutiérrez-Dorado, Alfredo Hernández-Llamas, Manuel García-Ulloa, Luís Sánchez-Magaña, Breidy Cuevas-Rodríguez, Hervey Rodríguez-González
BACKGROUND: Bioprocessing of ingredients by solid-state fermentation is a low-cost technique for preparing diets. It is perfomed by adding microorganisms as Rhizopus oligosporus to the grains of bean, with minimal degradation of nutrients, and a significant improvement in digestibility. In particular, fermentation induces favorable changes in beans by reducing enzyme inhibitors, such as phytates and tannins. RESULTS: Fermentation significantly (P < 0.05) increased the protein content and digestibility of dry matter and protein compared with whole bean grains, and decreased the content of lipids, ash, and phytic acid...
February 16, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28204754/hydrolysis-of-phytate-to-its-lower-esters-can-influence-the-growth-performance-and-nutrient-utilization-of-broilers-with-regular-or-super-doses-of-phytase
#2
L A Beeson, C L Walk, M R Bedford, O A Olukosi
No abstract text is available yet for this article.
February 16, 2017: Poultry Science
https://www.readbyqxmd.com/read/28186144/engineering-the-residual-side-chains-of-hap-phytases-to-improve-their-pepsin-resistance-and-catalytic-efficiency
#3
Canfang Niu, Peilong Yang, Huiying Luo, Huoqing Huang, Yaru Wang, Bin Yao
Strong resistance to proteolytic attack is important for feed enzymes. Here, we selected three predicted pepsin cleavage sites, L99, L162, and E230 (numbering from the initiator M of premature proteins), in pepsin-sensitive HAP phytases YkAPPA from Yersinia kristensenii and YeAPPA from Y. enterocolitica, which corresponded to L99, V162, and D230 in pepsin-resistant YrAPPA from Y. rohdei. We constructed mutants with different side chain structures at these sites using site-directed mutagenesis and produced all enzymes in Escherichia coli for catalytic and biochemical characterization...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28111437/dose-dependent-effects-of-a-microbial-phytase-on-phosphorus-digestibility-of-common-feedstuffs-in-pigs
#4
Ferdinando N Almeida, Mercedes Vazquez-Anon, Jeffery Escobar
Objective: To evaluate concentrations of a microbial phytase (Cibenza® Phytaverse®, Novus International, USA) on standardized total tract digestibility (STTD) of P in canola meal (CM), corn, corn-derived distiller's dried grains with solubles (DDGS), rice bran (RB), sorghum, soybean meal (SBM), sunflower meal (SFM), and wheat. Methods: Two cohorts of 36 pigs each (initial BW = 78.5 ± 3.7 kg) were randomly assigned to 2 rooms, each housing 36 pigs, and then allotted to 6 diets with 6 replicates per diet in a randomized complete block design...
January 13, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28108165/microbial-siderophores-and-root-exudates-enhanced-goethite-dissolution-and-fe-as-uptake-by-as-hyperaccumulator-pteris-vittata
#5
Xue Liu, Jing-Wei Fu, Evandro Da Silva, Xiao-Xia Shi, Yue Cao, Bala Rathinasabapathi, Yanshan Chen, Lena Q Ma
Arsenic (As) in soils is often adsorbed on Fe-(hydro)oxides surface, rendering them more resistant to dissolution, which is undesirable for phytoremediation of As-contaminated soils. Arsenic hyperaccumulator Pteris vittata prefers to grow in calcareous soils where available Fe and As are low. To elucidate its mechanisms of acquiring Fe and As from insoluble sources in soils, we investigated dissolution of goethite with pre-adsorbed arsenate (AsV; As-goethite) in presence of four organic ligands, including two root exudates (oxalate and phytate, dominant in P...
January 17, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28100173/whole-genome-wide-transcript-profiling-to-identify-differentially-expressed-genes-associated-with-seed-field-emergence-in-two-soybean-low-phytate-mutants
#6
Fengjie Yuan, Xiaomin Yu, Dekun Dong, Qinghua Yang, Xujun Fu, Shenlong Zhu, Danhua Zhu
BACKGROUND: Seed germination is important to soybean (Glycine max) growth and development, ultimately affecting soybean yield. A lower seed field emergence has been the main hindrance for breeding soybeans low in phytate. Although this reduction could be overcome by additional breeding and selection, the mechanisms of seed germination in different low phytate mutants remain unknown. In this study, we performed a comparative transcript analysis of two low phytate soybean mutants (TW-1 and TW-1-M), which have the same mutation, a 2 bp deletion in GmMIPS1, but show a significant difference in seed field emergence, TW-1-M was higher than that of TW-1 ...
January 18, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28097485/sorption-of-organic-phosphates-and-its-effects-on-aggregation-of-hematite-nanoparticles-in-monovalent-and-bivalent-solutions
#7
Chen-Yang Xu, Jiu-Yu Li, Ren-Kou Xu, Zhi-Neng Hong
Sorption of organic phosphates-myo-inositol hexakisphosphate (IHP) and glycerol phosphate (GP) and its effects on the early stage of hematite aggregation kinetics were investigated at different pH and electrolyte composition. KH2PO4 (KP) was taken as an inorganic P source for comparison. Results indicated that for all types of P, the sorption amounts decreased with increasing solution pH. Sorption amount of IHP was almost two times that of KP, while those of GP and KP were close. Both organic P and inorganic P interacted with hematite via ligand exchange through their phosphate groups, which conveyed negative charges to mineral surface and significantly decreased the zeta potential of hematite...
January 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28076998/phosphate-phytate-and-phytases-in-plants-from-fundamental-knowledge-gained-in-arabidopsis-to-potential-biotechnological-applications-in-wheat
#8
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
#9
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
#10
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
#11
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
#12
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...
February 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28002408/reducing-phosphorus-accumulation-in-rice-grains-with-an-impaired-transporter-in-the-node
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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...
January 10, 2017: 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
#20
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
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