Kinetics of N-Deacetylation of Chitin Extracted from Shrimp Shells Collected from Coastal Area of Morocco

Authors

  • Hammou Ahlafi Equipe des Matériaux et Catalyse Appliqués, Laboratoire de Chimie - Biologie Appliquées à l’Environnement, Faculté des Sciences, Meknès, Maroc
  • Hamou Moussout Equipe des Matériaux et Catalyse Appliqués, Laboratoire de Chimie - Biologie Appliquées à l’Environnement, Faculté des Sciences, Meknès, Maroc
  • Fatima Boukhlifi Equipe des Matériaux, Métallurgie et Ingénierie des Procédés, Ecole Nationale Supérieure d’Arts et Métiers, Meknès, Maroc
  • Mostafa Echetna Equipe des Matériaux et Catalyse Appliqués, Laboratoire de Chimie - Biologie Appliquées à l’Environnement, Faculté des Sciences, Meknès, Maroc
  • Mohamed Naciri Bennani Equipe des Matériaux et Catalyse Appliqués, Laboratoire de Chimie - Biologie Appliquées à l’Environnement, Faculté des Sciences, Meknès, Maroc
  • Slimani My Slimane Equipe des Matériaux et Catalyse Appliqués, Laboratoire de Chimie - Biologie Appliquées à l’Environnement, Faculté des Sciences, Meknès, Maroc

DOI:

https://doi.org/10.13171/mjc.2.3.2013.22.01.20

Abstract

Chitosan was obtained from the alkaline N-deacetylation of ï¡-chitin, derived from shrimp shells (SS) collected from the Moroccan coast. Effects of temperature, NaOH concentration and reaction time on the kinetics of deacetylation were studied. The degree of deacetylation (DD = 75%) was obtained at T = 120 °C and CNaOH = 12N in a single step for 6h. It was found, from FTIR studies, that the removal of acetyl groups from chitin occur very fast for the reaction time t < 180 min and then becomes constant after, revealing two steps in the deacetylation of chitin following a first-order kinetics for each of them. The second step is considered the limiting step that has, in the temperature range of 25 – 120 °C and maintained CNaOH = 12N, a low apparent rate constant. The activation energy of this step is about 48.76 kJ/mol. The biopolymer (Chitin and chitosan) produced were characterized by X-ray diffraction.

References

S. Bautista-Banõs, A.N. Hernández-Lauzardo, M.G. Velázquez-del Valle, M. Hernández- López, E. Ait Barka, E. Bosquez-Molina, C.L. Wilson, Crop Protection, 2006, 25, 108– 32 118.

Z. Cao, Z. H. Ge, S. Lai, European Polymer Journal, 2001, 37, 2141-2143.

M. Valentina Dinu, E. Stela Dragan, Chemical Engineering Journal, 2010, 160, 157–163.

M. Rinaudo, Progress in Polymer Science, 2006, 31, 603–632.

J. Iqbal, F.H. Wattoo, M.H. Sarwar Wattoo, R. Malik, S.A. Tirmizi, M. Imran, A.B. Ghangro, Arabian Journal of Chemistry, 2011, 4, 389–395.

M.R. Kasaai, Carbohydrate Polymers, 2008, 71, 497–508.

F.A. Al Sagheer, M.A. Al-Sughayer, S. Muslim, M.Z. Elsabee, Carbohydrate Polymers, 2009, 77, 410–419.

M.L. Duarte, M.C. Ferreira, M.R. Marvão, J. Rocha, International Journal of Biological Macromolecules, 2002, 31, 1- 8.

A. Tolaimate, J. Desbrières, M. Rhazi, A. Alagui, M. Vincendon, P. Vottero, Polymer, 2000, 41, 2463–2469.

P. Methacanon, M. Prasitsilp, T. Pothsree, J. Pattaraarchachai, Carbohydrate Polymers, 2003, 52, 119–123.

A. Chandumpai, N. Singhpibulporn, D. Faroongsarng, P. Sornprasit, Carbohydrate Polymers, 2004, 58, 467–474.

G. Galed, B. Miralles, I. Panõs, A. Santiago, Ã. Heras, Carbohydrate Polymers, 2005, 62, 316–320.

D. Ren, H. Yi, W. Wang, M. Xiaojun, Carbohydrate Research, 2005, 340, 2403–2410.

J. Brugnerotto, J. Lizardi, F.M. Goycoolea, W. ArguÈelles-Monal, J. Desbrie Ãres, M. Rinaudo, Polymer, 2001, 42, 3569 – 3580.

D. Baskar, T.S. Sampath Kumar, Carbohydrate Polymers, 2009, 78, 767–772.

W. Sajomsang, P. Gonil, Materials Science and Engineering C, 2010, 30, 357–363.

A. Percot, C. Viton, A. Domard, Biomacromolecules, 2003, 4, 1380-1385.

G. Chaussard, D. Domard, Biomacromolecules, 2004, 5, 559-564.

T.G. Liu, B. Li, W. Huang, B. Lv, J. Chen, J.X. Zhang, L.P. Zhu, Carbohydrate polymers, 2009, 77, 110–117.

R.L. Lavall, O.B.G. Assis, S.P. Campana-Filho, Bioresource Technology, 2007, 98, 2465–2472.

M. Fan, Q. Hu, K. Shen, Carbohydrate Polymers, 2009, 78, 66–71.

N. Yaghobi, F. Hormozi, Carbohydrate Polymers, 2010, 81, 892–896.

T. Lertwattanaseri, N. Ichikawa, T. Mizoguchi, Y. Tanaka, S. Chirachanchai, Carbohydrate Research, 2009, 344, 331–335.

Y. Zhang, C. Xue, Y. Xue, R. Gao, X. Zhang, Carbohydrate Research, 2005, 340, 1914–1917.

Y. Zhang, C. Xue, Z. Li, Y. Zhang, X. Fu, Carbohydrate Polymers, 2006, 65, 229–234.

K. Kurita, T. Sannan, Y. Iwakura, Makromolekulare Chemie, 1977, 178, 3197–3202.

T. Sannan, K. Kurita, Y. Iwakura, Polymer Journal, 1977, 9, 649-651.

A.A. Sarhan, D.M. Ayad, D.S. Badawy, M. Monier, Reactive & Functional Polymers, 2009, 69, 358.

Downloads

Published

2013-01-22

Issue

Vol. 2 No. 3 (2013)

Section

Bioorganic Chemistry

License

Authors who publish with this journal agree to the following terms:

    1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal
    2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal
    3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).