The Infleunce of the Subtituent on the Kinetic of Amino Acids Oxidaition by permanganate Ion
The kinetics of the oxidation of nine amino acids (glycine, alanine, valine. leucine, norleucine, serine, threonine, spartic and lysine) by permanganate ion were studied in an aqueous medium. The results showed that the oxidation reaction proceeds through two different pathways, The first is noncata...
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| Format: | Article |
| Language: | Arabic |
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College of Education for Pure Sciences
2005-09-01
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| Series: | مجلة التربية والعلم |
| Subjects: | |
| Online Access: | https://edusj.mosuljournals.com/article_83065_ece67f157979cbe0cb4070a896d2b7ae.pdf |
| _version_ | 1818151234948825088 |
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| author | Ibrahim Y.M.Al-Tayy Rana A.A.A.Quba Mahmoud S.Sajeed |
| author_facet | Ibrahim Y.M.Al-Tayy Rana A.A.A.Quba Mahmoud S.Sajeed |
| author_sort | Ibrahim Y.M.Al-Tayy |
| collection | DOAJ |
| description | The kinetics of the oxidation of nine amino acids (glycine, alanine, valine. leucine, norleucine, serine, threonine, spartic and lysine) by permanganate ion were studied in an aqueous medium. The results showed that the oxidation reaction proceeds through two different pathways, The first is noncatalyzed and the second is autocatalyzed by the colloidal inorganic product (MnO2). The rate of the noncatalyzed reaction is first-order in concentration of both amino acid and oxidizing agent, while the autocatalyzed reaction is first-order in concentration of amino acid, oxidizing and autocatalytic agent. Depending on the relation between the rate constant and temperature the thermodynamic parameters for the two pathways were calculated. A special care has been given to the effect of the structure of the group attached to chiral carbon atom of the amino acids on the rate and mechanism of oxidation reactions. Thekinetic results gave evidences supporting the proposed mechanism for the reaction, On the other hand, by measuring the rate of oxidation at different pH medium, the rate constant of oxidation of ananionic and zwitterionic form are calculated. |
| first_indexed | 2024-12-11T13:35:36Z |
| format | Article |
| id | doaj.art-4e8fa1a4f4fa4ff7bdc76eff6512bc38 |
| institution | Directory Open Access Journal |
| issn | 1812-125X 2664-2530 |
| language | Arabic |
| last_indexed | 2024-12-11T13:35:36Z |
| publishDate | 2005-09-01 |
| publisher | College of Education for Pure Sciences |
| record_format | Article |
| series | مجلة التربية والعلم |
| spelling | doaj.art-4e8fa1a4f4fa4ff7bdc76eff6512bc382022-12-22T01:05:03ZaraCollege of Education for Pure Sciencesمجلة التربية والعلم1812-125X2664-25302005-09-01174304110.33899/edusj.2005.8306583065The Infleunce of the Subtituent on the Kinetic of Amino Acids Oxidaition by permanganate IonIbrahim Y.M.Al-TayyRana A.A.A.QubaMahmoud S.SajeedThe kinetics of the oxidation of nine amino acids (glycine, alanine, valine. leucine, norleucine, serine, threonine, spartic and lysine) by permanganate ion were studied in an aqueous medium. The results showed that the oxidation reaction proceeds through two different pathways, The first is noncatalyzed and the second is autocatalyzed by the colloidal inorganic product (MnO2). The rate of the noncatalyzed reaction is first-order in concentration of both amino acid and oxidizing agent, while the autocatalyzed reaction is first-order in concentration of amino acid, oxidizing and autocatalytic agent. Depending on the relation between the rate constant and temperature the thermodynamic parameters for the two pathways were calculated. A special care has been given to the effect of the structure of the group attached to chiral carbon atom of the amino acids on the rate and mechanism of oxidation reactions. Thekinetic results gave evidences supporting the proposed mechanism for the reaction, On the other hand, by measuring the rate of oxidation at different pH medium, the rate constant of oxidation of ananionic and zwitterionic form are calculated.https://edusj.mosuljournals.com/article_83065_ece67f157979cbe0cb4070a896d2b7ae.pdfkineticamino acids oxidaitionpermanganate ion |
| spellingShingle | Ibrahim Y.M.Al-Tayy Rana A.A.A.Quba Mahmoud S.Sajeed The Infleunce of the Subtituent on the Kinetic of Amino Acids Oxidaition by permanganate Ion مجلة التربية والعلم kinetic amino acids oxidaition permanganate ion |
| title | The Infleunce of the Subtituent on the Kinetic of Amino Acids Oxidaition by permanganate Ion |
| title_full | The Infleunce of the Subtituent on the Kinetic of Amino Acids Oxidaition by permanganate Ion |
| title_fullStr | The Infleunce of the Subtituent on the Kinetic of Amino Acids Oxidaition by permanganate Ion |
| title_full_unstemmed | The Infleunce of the Subtituent on the Kinetic of Amino Acids Oxidaition by permanganate Ion |
| title_short | The Infleunce of the Subtituent on the Kinetic of Amino Acids Oxidaition by permanganate Ion |
| title_sort | infleunce of the subtituent on the kinetic of amino acids oxidaition by permanganate ion |
| topic | kinetic amino acids oxidaition permanganate ion |
| url | https://edusj.mosuljournals.com/article_83065_ece67f157979cbe0cb4070a896d2b7ae.pdf |
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