Results 181 to 190 of about 10,209 (220)

The Effects of Phosphate on the Development of Phytase in the Wheat Embryo

Physiologia Plantarum, 1967
AbstractThe effects of experimentally induced changes of inorganic phosphate concentration in the tissues of isolated wheat embryos during germination, were investigated in order to study the control mechanisms of the phytin‐phytase system.The supply of inorganic phosphate at concentrations from 5 × 10−3M to 3 × 10−3M does not alter growth, respiration,
Maria Luisa Sartirana, Renato Bianchetti
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The mechanism of the repression by inorganic phosphate of phytase synthesis in the germinating wheat embryo

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1967
It has been previously shown that phytase is repressed by Pi in isolated wheat embryos. The mechanism of the repression of phytase by Pi was investigated separately in the germ and in the scutellum of germinating wheat embryos. 1. 1. In the scutellum, the increase of phytase during germination is completely abolished by puromycin or by actinomycin.
R, Bianchetti, M L, Sartirana
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Phytase Mediated Beneficial Impact on Nutritional Quality of Biofortified Wheat Genotypes

Current Nutrition & Food Science, 2021
Background: Biofortification has been proposed as an intervention towards alleviation of micronutrient deficiency in the population of developing countries. However, the presence of anti- nutritional factor phytic acid in staple cereals chelates divalent cations and decreases their bioavailability for monogastric animals.
Meena Verma, Abhishake Saxena, Punesh Sangwan, Imran Sheikh, Vinod Kumar, Harcharan S. Dhaliwal   +5 more
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Quantitative Analysis of Phytate Globoids Isolated from Wheat Bran and Characterization of Their Sequential Dephosphorylation by Wheat Phytase

Journal of Agricultural and Food Chemistry, 2007
Wheat phytase was purified to investigate the action of the enzyme toward its pure substrate (phytic acid - myo-inositol hexakisphosphate) and its naturally occurring substrate (phytate globoids). Phytate globoids were purified to homogeneity from wheat bran, and their nutritionally relevant parameters were quantified by ICP-MS.
Bohn, Lisbeth, Josefsen, Lone, Meyer, Anne S., Rasmussen, Søren K.   +3 more
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Transgenic expression of phytase in wheat endosperm increases bioavailability of iron and zinc in grains

Transgenic Research, 2016
Phytate is a major constituent of wheat seeds and chelates metal ions, thus reducing their bioavailability and so the nutritional value of grains. Transgenic plants expressing heterologous phytase are expected to enhance degradation of phytic acid stored in seeds and are proposed to increase the in vitro bioavailability of mineral nutrients.
Abid, Nabeela, Khatoon, Asia, Maqbool, Asma, Irfan, Muhammad, Bashir, Aftab, Asif, Irsa, Shahid, Muhammad, Saeed, Asma, Brinch-Pedersen, Henrik, Malik, Kauser A.   +9 more
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Assessment of Iron Bioavailability in Whole Wheat Bread by Addition of Phytase-Producing Bifidobacteria

Journal of Agricultural and Food Chemistry, 2012
In this study, the influence of phytase-producing Bifidobacterium strains during the breadmaking process (direct or indirect) on final bread Fe dialyzability and ferritin formation in Caco-2 cell as a measure of cell Fe uptake was assessed. The addition of bifidobacteria significantly reduced the InsP(6) + InsP(5) concentrations compared to control ...
Juan Mario, Sanz-Penella, José Moisés, Laparra, Yolanda, Sanz, Monika, Haros   +3 more
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Susceptibility of Wheat and Aspergillus niger Phytases to Inactivation by Gastrointestinal Enzymes

Journal of Agricultural and Food Chemistry, 1999
The activity of wheat and Aspergillus niger phytases was determined following preincubation for 60 min at 37 degrees C alone or in the presence of pepsin or pancreatin to examine their ability to survive in the gastrointestinal tract. At pH 3.5 both phytases were stable, but at pH 2.5 wheat phytase rapidly lost activity. Following preincubation at pH 3.
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Predicting the Impact of Supplemental Phytase, Wheat and Phosphorus on the Performance of Layin Hen

7th World Congress on Computers in Agriculture Conference Proceedings, 22-24 June 2009, Reno, Nevada, 2009
A Genetic Fuzzy Rule Base System (GFRS) for modeling the response of laying hen hyline W36 performance to dietary supplemental phytase source, wheat and phosphorus level is described based on experimental data. Using data obtained via measurement of various characteristics of laying hens prepared with different levels of dosage of a commercial phytase ...
null Zary Forghany, null Mohsen Davarynejad, null L Zartash   +2 more
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Studies on phytase activity in oats and wheat using 31P-NMR spectroscopy

Journal of Cereal Science, 1988
31 P-Nuclear magnetic resonance spectroscopy ( 31 P-NMR) was used to follow the breakdown of phytate in oats and wheat. This technique offers considerable advantages over currently used methods for the measurement of relative amounts of the intermediate metabolites of the enzymatic degradation of the parent phytate.
W. Frølich, M. Wahlgren, T. Drakenberg
openaire   +1 more source

Isolation and characterization of seed specific phytase promoter (TaPAPhy_a1.1) from wheat

Indian Journal of Plant Physiology, 2018
Phytase enzyme plays a vital role to hydrolyze well known anti-nutrient substance phytic acid which is found in wheat grains. The present work demonstrated isolation and cloning the promoter region of phytase gene. The detail analysis of amplified region revealed specific motifs which are mainly responsible for the regulation of phytase gene.
Amit Vashishth, Sewa Ram, Vikas Beniwal
openaire   +1 more source