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Physicochemical characterization of chitin and chitosan producted from Parapenaeus Longirostris shrimp shell wastes
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نویسنده
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el knidri h. ,belaabed r. ,el khalfaouy r. ,laajeb a. ,addaou a. ,lahsini a.
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منبع
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journal of materials and environmental science - 2017 - دوره : 8 - شماره : 10 - صفحه:3648 -3653
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چکیده
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In this study,chitin was extracted from parapenaeus longirostris shrimp shell wastes using a chemical procedure,sodium hydroxide and hydrochloric acid solutions were used for deproteination and demineralization,respectively. however,the chitin is not widely used for industrial application because it is insoluble in many solvents. chitosan,a soluble biopolymer under acidic conditions,was extracted by deacetylation of chitin in alkaline treatment with 50% (w/v). the results of this study indicate that the shrimp shells are a rich source of chitin. the extracted chitosan exhibited a higher degree of deacetylation and a higher crystallinity index. the degree of deacetylation was calculated by the titration method and infrared spectroscopy,the samples obtained were characterized by fourier transform infrared spectroscopy ftir,x-ray diffraction xrd and scanning electron microscopy sem. © 2017,university of mohammed premier oujda morocco.
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کلیدواژه
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Caracterization; Chitin; Chitosan; Valorization; Waste
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آدرس
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catalysis,materials and environment laboratory,sidi mohamed ben abdellah university,higher school of technology,bp 2427 road,imouzzer,fez, Morocco, catalysis,materials and environment laboratory,sidi mohamed ben abdellah university,higher school of technology,bp 2427 road,imouzzer,fez, Morocco, catalysis,materials and environment laboratory,sidi mohamed ben abdellah university,higher school of technology,bp 2427 road,imouzzer,fez, Morocco, catalysis,materials and environment laboratory,sidi mohamed ben abdellah university,higher school of technology,bp 2427 road,imouzzer,fez, Morocco, catalysis,materials and environment laboratory,sidi mohamed ben abdellah university,higher school of technology,bp 2427 road,imouzzer,fez, Morocco, catalysis,materials and environment laboratory,sidi mohamed ben abdellah university,higher school of technology,bp 2427 road,imouzzer,fez, Morocco
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Authors
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