بررسی خصوصیات فیزیکی و مکانیکی فیلم‌ بایونانوکامپوزیت بر پایه‌ی موسیلاژ کتان و نانوکریستال سلولز

نوع مقاله : مقاله پژوهشی

نویسندگان

• الهام صفایی ¹
• حنان لشکری ²
• سارا انصاری ³
• علیرضا شیرازی نژاد ¹

¹ گروه علوم و صنایع غذایی، واحد سروستان، دانشگاه آزاد اسلامی، سروستان ایران

² گروه علوم و صنایع غذایی، واحد زرین دشت، دانشگاه آزاد اسلامی، زرین دشت، ایران

³ گروه علوم و صنایع غذایی، واحد کازرون، دانشگاه آزاد اسلامی، کازرون، ایران

https://doi.org/10.22067/ifstrj.2023.79467.1214

چکیده

تولیدکنندگان در تلاش هستند تا فیلم‌های زیست تخریب‌پذیر و خوراکی را جایگزین مواد پلاستیکی در صنعت بسته‌بندی مواد غذایی کنند. هدف از این تحقیق، تولید و مشخصه‌سازی فیلم خوراکی و زیست تخریب‌پذیر بر پایه ترکیب صمغ دانه کتان و نانوکریستال سلولز بود. فیلم‌ها از نسبت‌های مختلف (0:100، 30:70، 50:50، 70:30 و 100:0) محلول‌های موسیلاژ دانه کتان (2 درصد وزنی/حجمی) و نانوکریستال سلولز (6 درصد وزنی/حجمی) تهیه شد و خصوصیات فیزیکی، رنگی و مکانیکی آنها مورد بررسی قرار گرفت و بهترین نسبت برای تهیه فیلم بایونانوکامپوزیت انتخاب گردید. ریزساختار فیلم تولیدی با استفاده از میکروسکوپ الکترونی روبشی (SEM) مورد مطالعه قرار گرفت. میانگین داده‌ها، توسط آنالیز تجزیه واریانس در طرح کاملاً تصادفی و با استفاده از نرم‌افزار SPSS 22.0 تجزیه و تحلیل شدند. تفاوت‌های بین تیمارها، در آزمون چنددامنه‌ای دانکن و در سطح احتمال 95 درصد بیان گردید (05/0>p) و نمودارهای مربوطه با Excel 2013 رسم شدند. نتایج نشان داد که با افزودن نانوکریستال سلولز به فیلم بر پایه موسیلاژ دانه کتان و افزایش میزان آن، شدت روشنایی فیلم‌ها کاهش و شدت قرمزی، زردی و کدورت فیلم‌ها به‌طور معنی‌داری افزایش یافت (05/0>p). نتایج حاصل در نهایت نشان داد که ترکیب موسیلاژ دانه کتان و نانوکریستال سلولز در نسبت 30:70 توانست بهترین فیلم از لحاظ استحکام مکانیکی و پایداری در مقابل رطوبت و بخارآب را تولید کند. تصویر SEM این فیلم بیانگر سطح صاف، هموار و توزیع یکنواخت نانوکریستال‌ها در شبکه فیلم بود.

کلیدواژه‌ها

• رنگ سنجی
• ریز ساختار
• زیست تخریب پذیر
• مقاومت در برابر آب
• مقاومت کششی

موضوعات

• فناوری مواد غذایی

©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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