Isolation of chitin from the oriental hornet Vespa orientalis (L) and its conversion into chitosan by a chemical method
Rady, M., Essa, E., A., M., Salama, M., Barakat, E., Abou-Elmagd, W. (2017). Isolation of chitin from the oriental hornet Vespa orientalis (L) and its conversion into chitosan by a chemical method. EKB Journal Management System, 13(1), 45-48. doi: 10.21608/ajbs.2017.68630
Magda Rady; Eman Essa; Ma’moun A.; Mohamed Salama; Emad Barakat; Wael Abou-Elmagd. "Isolation of chitin from the oriental hornet Vespa orientalis (L) and its conversion into chitosan by a chemical method". EKB Journal Management System, 13, 1, 2017, 45-48. doi: 10.21608/ajbs.2017.68630
Rady, M., Essa, E., A., M., Salama, M., Barakat, E., Abou-Elmagd, W. (2017). 'Isolation of chitin from the oriental hornet Vespa orientalis (L) and its conversion into chitosan by a chemical method', EKB Journal Management System, 13(1), pp. 45-48. doi: 10.21608/ajbs.2017.68630
Rady, M., Essa, E., A., M., Salama, M., Barakat, E., Abou-Elmagd, W. Isolation of chitin from the oriental hornet Vespa orientalis (L) and its conversion into chitosan by a chemical method. EKB Journal Management System, 2017; 13(1): 45-48. doi: 10.21608/ajbs.2017.68630

Isolation of chitin from the oriental hornet Vespa orientalis (L) and its conversion into chitosan by a chemical method

African Journal of Biological Sciences
Article 3, Volume 13, Issue 1, 2017, Page 45-48  XML PDF (245.21 K)
Document Type: Original Article
DOI: 10.21608/ajbs.2017.68630
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Authors
Magda Rady1; Eman Essa1; Ma’moun A.1; Mohamed Salama1; Emad Barakat* 1; Wael Abou-Elmagd2
1Entomology Department , Faculty of Science, Ain Shams University, Cairo, Egypt.
2Chemistry Department , Faculty of Science ,Ain-Shams Universi ty, Cairo, Egypt.
Abstract
Chitin extracted from the oriental hornet wasp Vespa orientalis (L),Vespinae,Hymenoptera, is a new source of insect chitin and converted into chitosan using chemical methods. In the present study the physical properties of the wasp chitosan was assessed using two approaches, Fourier transform infrared spectroscopy (FTIR) and Nuclear Magnetic Resonance spectroscopy (1H-NMR). The results showed that it gives a higher purity as compared to crustacean chitosan. The degree of deacetylation (DDA) (92-93%) was also higher than that of the crustacean chitosan (83.8-85.8%). Therefore, the oriental hornet wasp could be a novel alternative source of chitosan.
Keywords
Vespa orientalis – Chitosan; Deacetylation –Characterization
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