Optimization, extraction and functionalization of chitosan derived from southern shrimp shell
محل انتشار: نهمین سمینار ملی شیمی و محیط زیست ایران
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 304
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شناسه ملی سند علمی:
NSCEI09_165
تاریخ نمایه سازی: 19 آبان 1398
چکیده مقاله:
Regarding environmental contamination the use of biodegradable polymers is necessary. Chitin and chitosan , as the most abundant polysaccharide in nature and possessing characteristics such as high biocompatibility and low toxicity and biodegradability and acceptable antimicrobial properties , high potential for the preparation of raw materials and useful materials is one of the most suitable option . The present study aims to optimize the extraction of chitin and chitosan with the aim of saving time and raw materials , as well as the functionalization of chitosan with magnetic iron oxide nanoparticles for use as filler .Analysis Method: According to the previous studies [1-25], in this study , the pretreatment method was selected by changing the temperature range and reducing the consumed raw materials and high efficiency as the optimal method for extracting chitin and chitosan . In this method, the dried shrimp crust was used at room temperature .After the milling of the crust ,the powder was added to the powder for deproteinization and dehydration of 0.68% molar acydcholoride. The residue was washed and after several hours immersion in water , sodium hydroxide 0.62% molar was added. The resulting sample was dried in an oven and chitin was obtained .Conclusion: chitosan is known as one of the best absorbents and fillers due to the hydroxyl and amine groups. When magnetic nanoparticles are coated with chitosan , they not only protect against oxidation , but also reduce toxicity ,reduce accumulation and increase stability magnetic fillers cause magnetic induction in composites.
نویسندگان
F Motiee
Department of Chemistry, Islamic Azad University Tehran North Branch, P. O. Box:۱۶۵۱۱۵۳۳۱۱, Tehran, Iran
H. S sharifi,
Department of Chemistry, Islamic Azad University Tehran North Branch, P. O. Box:۱۶۵۱۱۵۳۳۱۱, Tehran, Iran
T Bigdeli
Department of Chemistry, Islamic Azad University Tehran North Branch, P. O. Box:۱۶۵۱۱۵۳۳۱۱, Tehran, Iran
M. A. Pazhohande
Department of Chemistry, Islamic Azad University Tehran North Branch, P. O. Box:۱۶۵۱۱۵۳۳۱۱, Tehran, Iran