دورية أكاديمية
Effects of copper source and concentration on in vitro phytate phosphorus hydrolysis by phytase.
| العنوان: | Effects of copper source and concentration on in vitro phytate phosphorus hydrolysis by phytase. |
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| المؤلفون: | Pang Y; Department of Animal Science, Purdue University, West Lafayette, Indiana 47907, USA., Applegate TJ |
| المصدر: | Journal of agricultural and food chemistry [J Agric Food Chem] 2006 Mar 08; Vol. 54 (5), pp. 1792-6. |
| نوع المنشور: | Comparative Study; Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Chemical Society Country of Publication: United States NLM ID: 0374755 Publication Model: Print Cited Medium: Print ISSN: 0021-8561 (Print) Linking ISSN: 00218561 NLM ISO Abbreviation: J Agric Food Chem Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Washington, American Chemical Society. |
| مواضيع طبية MeSH: | 6-Phytase/*metabolism , Copper/*analysis , Copper/*pharmacology , Phosphorus/*metabolism , Phytic Acid/*metabolism, Copper/chemistry ; Hydrogen-Ion Concentration ; Hydrolysis ; Solubility |
| مستخلص: | Five copper (Cu) sources were studied at pH 2.5, 5.5, and 6.5 to determine how Cu affects phytate phosphorus (PP) hydrolysis by phytase at concentrations up to 500 mg/kg diet (60 min, 40-41 degrees C). Subsequently, Cu solubility with and without sodium phytate was measured. Adding Cu inhibited PP hydrolysis at pH 5.5 and pH 6.5 (P < 0.05). This inhibition was greater with higher concentrations of Cu. Tri-basic copper chloride and copper lysinate inhibited PP hydrolysis much less than copper sulfate pentahydrate, copper chloride, and copper citrate (P < 0.05). A strong negative relationship was observed between PP hydrolysis and soluble Cu at pH 5.5 (r = -0.76, P < 0.0001) and 6.5 (r = -0.54, P < 0.0001). In conclusion, pH, Cu concentration, and source influenced PP hydrolysis by phytase in vitro and were related to the amount of soluble Cu and the formation of insoluble copper-phytin complexes. |
| المشرفين على المادة: | 27YLU75U4W (Phosphorus) 789U1901C5 (Copper) 7IGF0S7R8I (Phytic Acid) EC 3.1.3.26 (6-Phytase) |
| تواريخ الأحداث: | Date Created: 20060302 Date Completed: 20060508 Latest Revision: 20131121 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1021/jf052053b |
| PMID: | 16506835 |
| قاعدة البيانات: | MEDLINE |
Find this issue from the American Chemical Society | تدمد: | 0021-8561 |
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| DOI: | 10.1021/jf052053b |