THE TOTAL PHOSPHORUS, PHYTATE PHOSPHORUS AND INORGANIC PHOSPHORUS OF BREAD AND THE DESTRUCTION OF PHYTIC ACID IN BREAD MAKING

1949 ◽  
Vol 27 (1) ◽  
pp. 99-104 ◽  
Author(s):  
JW Lee ◽  
EJ Underwood
Keyword(s):  
Phytic Acid ◽  
Total Phosphorus ◽  
Inorganic Phosphorus ◽  
Bread Making ◽  
Phytate Phosphorus

The effects of phytase supplementation on nutrient digestibility, plasma parameters, performance and carcass traits of pigs fed diets based on low-phytate barley without inorganic phosphorus

2006 ◽  
Vol 86 (2) ◽  
pp. 245-254 ◽  
Author(s):  
P. A. Thacker ◽  
B. G. Rossnagel ◽  
V. Raboy
Keyword(s):  
Total Phosphorus ◽  
Organic Phosphorus ◽  
Inorganic Phosphorus ◽  
Positive Control ◽  
Nutrient Digestibility ◽  
Dicalcium Phosphate ◽  
Feed Conversion ◽  
Plasma Parameters ◽  
Phytate Phosphorus ◽  
Fecal Phosphorus

A total of 80 crossbred pigs (25.5 ± 2.6 kg) were assigned to one of eight dietary treatments. A positive control, based on Harrington barley, was formulated to meet requirements for total phosphorus. Three experimental diets (low in total phosphorus) were formulated based on either Harrington barley (0.28% phytate phosphorus) or the low phytate genotypes LP422 (0.14% phytate phosphorus) and LP 635 (0.09% phytate phosphorus). The four diets were fed with and without 1000 FTU kg-1 phytase. Calcium and phosphorus digestibility were significantly higher (P < 0.05) as a result of supplementation with phytase. For the barley diets formulated without dicalcium phosphate, calcium digestibility averaged 69.6, 73.3 and 72.2% while phosphorus digestibility averaged 36.5, 50.5 and 57.7% for pigs fed the Harrington, LP 422 and LP 635 diets, respectively. The addition of phytase to the diet consistently reduced the percentage of phosphorus excreted in feces and fecal phosphorus excretion declined as the level of phytate in the barley declined. The addition of phytase tended to improve weight gain (P < 0.10) and significantly improved feed conversion (P < 0.05). For pigs fed the barley diets formulated without dicalcium phosphate, daily gain averaged 0.90, 0.99 and 1.01 kg d-1 while feed conversion averaged 2.70, 2.39 and 2.38 for the Harrington, LP 422 and LP 635 diets, respectively. The overall results of this experiment indicate that the performance of pigs fed diets containing low-phytate barley formulated without a source of inorganic phosphorus is at least equal to that of pigs fed diets containing normal-phytate barley and inorganic phosphorus. In addition, the increased availability of organic phosphorus reduced the amount of phosphorus excreted thus reducing the amount of phosphorus that can potentially pollute the environment. Key words: Low phytate barley, phytase, pigs, performance, digestibility

scholarly journals Effects of supplemental phytase on nutrient excretion and retention in broilers fed different cereal based diets

2011 ◽  
Vol 50 (No. 1) ◽  
pp. 40-46 ◽  
Author(s):  
J. Pintar ◽  
B. Homen ◽  
K. Gazić ◽  
Z. Janječić ◽  
M. Sikirić ◽  
...  
Keyword(s):  
Total Phosphorus ◽  
Significant Influence ◽  
Soybean Meal ◽  
Nutrient Intake ◽  
Dietary Calcium ◽  
Calcium Excretion ◽  
Nutrient Excretion ◽  
Phosphorus Excretion ◽  
Phytate Phosphorus

A 21-day experiment with day-old broilers was conducted in order to assess the effect of phytase supplementation to different cereals-soybean meal based diets on nitrogen, calcium, total and phytate phosphorus excretion and retention. Diets were formulated to contain 4 different cereals (maize, wheat, triticale and barley), 2 levels of dietary calcium (0.6 and 1.0%) and 3 levels of supplemental phytase (0, 500 and 1 000 PU/kg). Nutrient intake, excretion and retention were determined in the first three days of the 2nd and 3rd week of trial. The increasing phytase level resulted in reducing phytate phosphorus excretion and increasing its retention. Significant differences were obtained only in the 2nd week (excretion P &lt; 0.024 and retention P &lt; 0.044). Phytase supplementation significantly influenced total phosphorus excretion in the 3rd week (P &lt; 0.048) and retention in the 2nd week (P &lt; 0.015). The effects of 500 and 1 000 PU/kg were not statistically different from each other. No significant influence of phytase supplementation on nitrogen and calcium excretion and retention was observed. &nbsp;

Effect of total phosphorus and phytate-phosphorus intake on phosphorus digestibility in horses

2013 ◽  
Vol 33 (5) ◽  
pp. 352 ◽  
Author(s):  
L.K. Warren ◽  
J.M. Weir ◽  
P.A. Harris ◽  
J. Kivipelto
Keyword(s):  
Total Phosphorus ◽  
Phytate Phosphorus ◽  
Phosphorus Intake

Fate of phytic acid during bread making

Nahrung/Food ◽  
1988 ◽  
Vol 32 (1) ◽  
pp. 15-19 ◽  
Author(s):  
P. Chhabra ◽  
J. S. Sidhu
Keyword(s):  
Phytic Acid ◽  
Bread Making

Variation of minerals and trace elements in laboratory animal diets

1981 ◽  
Vol 15 (4) ◽  
pp. 299-303 ◽  
Author(s):  
A. Wise ◽  
D. J. Gilburt
Keyword(s):  
Trace Elements ◽  
Total Phosphorus ◽  
Laboratory Animal ◽  
Sodium Potassium ◽  
Phytate Phosphorus ◽  
Minerals And Trace Elements

29 laboratory animal diets from 5 manufacturers for rats, mice, rabbits, guineapigs, primates and dogs were analysed for calcium, total phosphorus, phytate phosphorus, magnesium, sodium, potassium, iron, zinc and copper. Variations between diets for the same species were found to be much larger than differences between means for different species. The analyses were compared with data in the manufacturers' catalogues. The best controlled element was potassium. Most deviations of other elements were distributed in a skewed fashion and quite serious differences between analytical and catalogue data were found. In general, deviations from the catalogue were less than variations between diets. It is recommended that catalogues should give ranges of composition rather than means.

Biological protein quality and phytic acid content of domesticallyprocessed kidney beans (Phaseolus Vulgaris)

2016 ◽  
Vol 35 (4) ◽  
Author(s):  
Rajni Modgil ◽  
K. Mankotia ◽  
Ranjana Verma ◽  
Anupama Sandal
Keyword(s):  
Phaseolus Vulgaris ◽  
Phytic Acid ◽  
Phosphorus Content ◽  
Protein Quality ◽  
Protein Digestibility ◽  
Efficiency Ratio ◽  
Phytate Phosphorus ◽  
Kidney Beans ◽  
Net Protein

Effect of domestic processing techniques i.e. soaking, sprouting and cooking was seen on the anti nutrient constituents of kidney beans (Phaseolus vulgaris). Biological protein quality of sprouted and cooked grains was also estimated. Anti nutrient analyzed was phytic acid. Phytate phosphorus and non phytate phosphorus content was also estimated. Rats were fed on domestically processed kidney beans for estimation of protein efficiency ratio(PER), food efficiency ratio(FER) ,apparent protein digestibility(APD), true protein digestibility(TPD), Biological value(BV), net protein utilization(NPU) and net protein retention (NPR). Cooking of kidney beans resulted in a significant decrease in phytic acid and phytate phosphorus content as compared to sprouting. Sprouting and cooking resulted in an increase in FER and PER. Cooking resulted in an increase in biological protein quality of kidney beans. Domestically processed kidney beans have better biological protein quality.

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