نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه علوم و صنایع غذایی، واحد قوچان، دانشگاه ازاد اسلامی،قوچان،ایران

2 گروه نانو فناورى مواد غذایى، مؤسسه پژوهشی علوم و صنایع غذایى، مشهد، ایران

چکیده

ژلاتین یک پلیمر طبیعی است که به‌طور گسترده در تولید نانو ذرات و در صنایع غذایی، دارویی و پزشکی به دلیل ویژگی‌های منحصر به فرد در ایجاد ژل، کپسول، قوام‌دهندگی، پایدارکنندگی و امولسیفایری مورداستفاده قرار می‌گیرد. در این مطالعه، از ژلاتین تیپ B (گاوی) با بلوم 260-240 و روش ضد حلال دو مرحله‌ای استفاده شد و در ادامه برای تشکیل نانو ذرات استون به‌صورت قطره‌ای و در حین هم زدن اضافه گردید تا محلول شروع به تغییر رنگ و درنهایت به رنگ سفید در‌آید که نشان‌دهنده تشکیل شدن نانو ذرات است. در انتها محلول گلوتارآلدهید جهت اتصالات عرضی اضافه و سانتریفوژ شد. همچنین غلظت بهینه ژلاتین، مقدار بهینه از استون مصرفی، و همچنین دما و سرعت مطلوب هم زدن برای تولید نانو ذرات، مشخص گردید. یافته‌های این پژوهش نشان داد که شرایط بهینه برای تولید ذراتی با میانگین ‌اندازه 6/88 نانومتر در دمای 40 درجه سانتی‌گراد، حجم مصرفی استون 15 میلی‌لیتر، غلظت 200 میلی‌گرم بر میلی‌لیتر و سرعت هم زدن rpm 1000 است. در ادامه نتایج حاصل از آزمون‌های طیف‌سنجی مادون قرمز، پراش اشعه ایکس، پتانسیل زتا، آنالیز وزن‌سنجی حرارتی و بررسی مورفولوژی میکروسکوپ‌های الکترونی نشان داد نانو ذرات ژلاتین ساخته‌شده تحت این شرایط به شکل کروی با سطحی صاف بوده که از شبکه پلیمری منسجم و اسکلت مقاومی نسبت به حرارت برخوردار هستند. 

کلیدواژه‌ها

موضوعات

©2023 The author(s). This is an open access article distributed under Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source.

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https://doi.org/10.1002/1097-0126(200012)49:12<1600::AID-PI554>3.0.CO;2-K

 

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