Ruminal phytate degradation of maize grain and rapeseed mealin vitroand as affected by phytate content in donor animal diets and inorganic phosphorus in the buffer

2016 ◽  
Vol 101 (5) ◽  
pp. 868-880 ◽  
Author(s):  
E. Haese ◽  
M. Lengowski ◽  
E. Gräter ◽  
A. Föll ◽  
J. Möhring ◽  
...  
Keyword(s):  
Inorganic Phosphorus ◽  
Donor Animal ◽  
Phytate Degradation ◽  
Maize Grain ◽  
Phytate Content

scholarly journals An assessment of nutritional quality of hybryd maize grain based on chemical composition

Genetika ◽  
2012 ◽  
Vol 44 (3) ◽  
pp. 571-582
Author(s):  
Milan Stevanovic ◽  
Snezana Mladenovic-Drinic ◽  
Vesna Dragicevic ◽  
Zoran Camdzija ◽  
Milomir Filipovic ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Nutritional Quality ◽  
Block Design ◽  
Inorganic Phosphorus ◽  
Soluble Proteins ◽  
Total Proteins ◽  
High Positive Correlation ◽  
Maize Hybrids ◽  
Soluble Phenolics ◽  
Phytate Content

The aim of this study was to investigate chemical composition of grain of 20 maize hybrids, from different maturity groups, to define their nutritional quality from the point of main grain constituents: starch, total proteins, soluble proteins, oil, phytate, inorganic phosphorus, and soluble phenolics, as well as mass of 1.000 grains. A set of 20 ZP hybrids, FAO 400-800, were grown in a randomized complete block design (RCBD) at Zemun Polje (Serbia), during the summer of 2009. Average content of proteins, oil and starch of analyzed maize hybrids was 10.5%, 4.7% and 80.8%, respectively. Hybrids from FAO maturity group 600 had highest grain mass (in average 419.5 g). Genetic variability in seed phytate content was observed, with values ranging from 2.64 to 3.75, averaged 3.44 g kg-1. Inorganic phosphorus (Pi) concentrations were between 0.120 ? g g-1 (ZP 805) to 0.415 ? g g-1 (ZP 588ex), averaged 0.24 ? g g-1. Content of soluble proteins varied from 54.33 to 78.74 mg g-1. The high positive correlation was observed between total proteins and oil content in hybrids, as well as between starch and phenolics content. Phytate content was positively correlated with proteins, but this correlation was not significant, while the correlation between phytate and mass of 1,000 grains was positive and significant. A negative correlation occurred between phytate and starch.

scholarly journals Genetic variation of phytate and ionorganic phosphorus in maize population

Genetika ◽  
2009 ◽  
Vol 41 (1) ◽  
pp. 107-115 ◽  
Author(s):  
Snezana Mladenovic-Drinic ◽  
Danijela Ristic ◽  
Slobodanka Sredojevic ◽  
Vesna Dragicevic ◽  
Dragana Ignjatovic-Micic ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Genetic Variability ◽  
Protein Content ◽  
Agronomic Traits ◽  
Inorganic Phosphorus ◽  
High Concentration ◽  
Positive Correlation ◽  
Maize Population ◽  
Maize Populations ◽  
Phytate Content

Analysis of 60 maize populations was conducted to identify genotypes that had either low or high concentration of phytate. Genetic variability in seed phytate content was observed, with values ranging from 1,147 to 4, 13 g kg-1. Inorganic phosphorus (Pi) concentrations were between 0, 35 and 1, 29 and averaged 0, 65 g kg-1. Three groups of populations were identified as having low, intermediate and high phytate content. The low phytate concentration was measured in eight, intermediate in 25 and high in 27 populations. Positive correlation was found between phytate and protein. Population 216 had the lowest phytate concentration of 1, 14 gkg-1, and a Pi concentration 40% greater than Pi mean but lower than average protein content. This population will be used for further breeding genotypes with low phytate content and good agronomic traits.

Comparison between steeping and pelleting a mixed diet at different calcium levels on phytate degradation in pigs

1997 ◽  
Vol 77 (3) ◽  
pp. 471-477 ◽  
Author(s):  
Erika Skoglund ◽  
Torben Larsen ◽  
Ann-Sofie Sandberg
Keyword(s):  
Small Intestine ◽  
Calcium Carbonate ◽  
Room Temperature ◽  
Inositol Phosphates ◽  
Intestinal Content ◽  
P Uptake ◽  
Inositol Hexaphosphate ◽  
Phosphorus Absorption ◽  
Phytate Degradation ◽  
Phytate Content

The degradation of phytate (inositol hexaphosphate) in the stomach, small intestine and colon was studied in 36 female pigs. A comparison was made between steeped (9 h, room temperature, feed:water 1:2.5) and pelleted diets with or without calcium carbonate supplementation (12.5 g kg−1). The diet was composed of barley, rapeseed cake and peas in the proportion 70:15:15. Dietary and intestinal content of phytate and its hydrolysis products (inositol penta-, tetra- and triphosphates) were determined using HPLC ion-pair chromatography. Steeping the feed for 9 h at room temperature reduced the phytate content by 45% and increased the amount of free phosphorus threefold. Pelleting the diet reduced phytate content by 7%. Supplementation with Ca decreased dietary phytate reduction. Steeping of the diet reduced ileal phytate content by 40% compared with pelleting. Apparent phosphorus absorption from ileal digesta was 10% lower when pigs were fed the pelleted diet, as compared to the steeped diet. Calcium carbonate supplementation impared inositol hexaphosphate degradation in the colon of pigs, but did not affect phytate degradation in the stomach and small intestine. Calcium carbonate supplementation, moreover, depressed apparent P uptake in the stomach/small intestinal region, as well as in the total gastrointestinal tract, for all feed treatments. Key words: Phytate degradation, inositol phosphates, steeping, pelleting, calcium, pigs

Phytate content and phytate degradation by endogenous phytase in pea (Pisum sativum)

2001 ◽  
Vol 81 (12) ◽  
pp. 1139-1144 ◽  
Author(s):  
Mattias Fredrikson ◽  
Marie Larsson Alminger ◽  
Nils-Gunnar Carlsson ◽  
Ann-Sofie Sandberg
Keyword(s):  
Pisum Sativum ◽  
Phytate Degradation ◽  
Phytate Content

scholarly journals Effect of Natural Phytase, Fermentation, and Baking Processes on Phytate Degradation in Wheat Bread Manufactured from Local Mills Flour

2019 ◽  
pp. 1920-1927
Author(s):  
Jassim M. Nasser ◽  
Ezuldeen K. Hammood
Keyword(s):  
Phytic Acid ◽  
Inorganic Phosphorus ◽  
Wheat Bread ◽  
Phosphorus Concentration ◽  
Fermentation Processes ◽  
Phytate Degradation ◽  
Baking Process

     The present study aims to investigate the effect of wheat natural phytase, fermentation and baking processes in the destruction of phytic acid during the process of making wheat bread for some Iraqi mills. The concentration of phytic acid was (850.32, 802.14, 531.84 mg / 100g) for the flour of AL-Brairie, AL-Nesr and AL-Al-Doura mills respectively. At the end of the fermentation processes, the decrease in the concentration of phytic acid in the samples produced from the flour obtained from the three mills was (47.06, 26.98, 40.00%) respectively, while inorganic phosphorus concentration in all treatments increased by 32.4, 42.37 and 36.21 %, respectively. It was found that the activity of wheat natural phytase enzyme varies according to the type of mill and the enzyme has been destroyed after the baking process for all treatments. It is clear that, with the effect of wheat natural phytase enzyme and fermentation and baking processes, the concentration of phytic acid may be reduced when preparing wheat bread for some mills by (26-47%).

scholarly journals Inheritance of inorganic and phytic phosphorus in maize (Zea mays L.) kernel

Genetika ◽  
2018 ◽  
Vol 50 (1) ◽  
pp. 299-315
Author(s):  
Zoran Camdzija ◽  
Vesna Dragicevic ◽  
Jelena Vancetovic ◽  
Milan Stevanovic ◽  
Jovan Pavlov ◽  
...  
Keyword(s):  
Grain Yield ◽  
Combining Ability ◽  
Zea Mays L ◽  
Inorganic Phosphorus ◽  
Inbred Lines ◽  
Kernel Weight ◽  
Selection Indices ◽  
Additive Inheritance ◽  
Maize Grain ◽  
Phytic Phosphorus

A set of fifteen elite inbred lines of maize (used as mothers) and three tester inbred lines (used as fathers) were investigated using line x tester statistical model, including both hybrids and inbreds. Four traits were measured: grain yield, 1000 kernel weight, phytic phosphorus (Pphy) and inorganic phosphorus (Pi) in the kernel. Pphy content among hybrids ranged from 2.342 to 4.812 g kg-1 and Pi content from 0.562 to 2.340 g kg-1, while among inbreds (lines and testers) they ranged from 2.503 to 4.180 g kg-1 and from 0.587 to 1.629 g kg-1, respectively. Correlations between the four traits allow breeding for high Pi and low Pphy, as well as for both high Pi and phytate, without compromising grain yield. Correlation for hybrids between Pphy and Pi was 0.185 (p<0.05) and for inbreds 0.142 (non-significant). General combining ability/special combining ability (GCA/SCA) values for all the traits were below 1 (very low) indicated non-additive inheritance. In the investigated set of genotypes, multiple selection indices should be used for simultaneous improvement of grain yield and phosphorus profile of maize grain.

Analysis of the moisture content of maize kernels in over-ripe plants

2006 ◽  
Vol 54 (4) ◽  
pp. 425-430
Author(s):  
T. Árendás ◽  
L. C. Marton ◽  
P. Bónis ◽  
Z. Berzsenyi
Keyword(s):  
Linear Regression ◽  
Moisture Content ◽  
Grain Yield ◽  
Equilibrium Moisture Content ◽  
Weather Conditions ◽  
Positive Correlation ◽  
Maize Grain Yield ◽  
Maize Grain ◽  
Maize Kernels

The effect of varying weather conditions on the moisture content of the maize grain yield was investigated in Martonvásár, Hungary from late August to late September, and from the 3rd third of September to the 1st third of Novemberbetween 1999 and 2002. In every year a close positive correlation (P=0.1%) could be observed between the moisture content in late September and the rate of drying down in October. Linear regression was used each year to determine the equilibrium moisture content, to which the moisture content of kernels returned if they contained less than this quantity of water in late September and harvesting was delayed. In the experimental years this value ranged from 15.24-19.01%.

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