اثر پلاسما سرد و نانو‌اکسید روی بر اصلاح نشاسته ذرت به‌عنوان ماده بسته‌بندی غذایی

نوع مقاله : مقاله پژوهشی انگلیسی

نویسندگان

امیرحسین بیانلو ¹

ایمان شهابی قهفرخی ^{1، 2}

سیمین حق نظری ¹

¹ گروه علوم و مهندسی صنایع غذایی، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران

² گروه علوم و صنایع غذایی، دانشکده کشاورزی، دانشگاه صنعتی اصفهان، اصفهان، ایران

https://doi.org/10.22067/ifstrj.2025.94463.1455

چکیده

این پژوهش به بررسی اثر پلاسما سرد بر فیلم‌های بیونانوکامپوزیت دوستدار محیط‌زیست نشاسته/اکسید روی می‌پردازد که شامل ۳ درصد وزنی نانو‌ذره اکسید روی و زمان‌های مختلف اعمال پلاسما سرد (۰، ۳۰، ۶۰ و ۹۰ ثانیه) هستند. نتایج نشان می‌دهد که افزایش مدت زمان تیمار پلاسما سرد موجب افزایش ضخامت فیلم، ویسکوزیته، حلالیت در آب، جذب رطوبت و زبری سطح می‌شود؛ در حالی‌که زاویه تماس و میزان رطوبت کاهش می‌یابد. ولی تغییر قابل توجهی در نفوذپذیری بخار آب، چگالی و یا ارزیابی تراوایی به طیف‌های UV-Vis مشاهده نشد. تیمار پلاسما سرد باعث بهبود استحکام کششی، درصد افزایش طول در نقطه شکست و انرژی کششی تا نقطه شکست در نمونه‌ها شد، در حالی‌که شاخص‌های روشنایی و سفیدی کاهش یافتند بدون آنکه تفاوت رنگی ایجاد شود. این مطالعه پلاسما سرد را به‌عنوان روشی سریع و سازگار با محیط‌زیست برای اصلاح فیلم‌ها معرفی می‌کند که کارایی بیشتری هنگام اعمال بر محلول‌های نشاسته‌ای دارد و پتانسیل بالایی برای کاربردهای صنعتی در مواد بسته‌بندی فراهم می‌آورد.

کلیدواژه‌ها

اصلاح دوگانه

اکسید روی

بسته‌بندی سبز

پلاسما سرد

نانوکامپوزیت

نشاسته

موضوعات

• فناوری مواد غذایی

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عنوان مقاله English

Effects of Cold Plasma and Nano-zinc Oxide on Modification of Corn Starch as a Food Packaging Material

نویسندگان English

Amir-Hossein Bayanloo ¹

Iman Shahabi-Ghahfarrokhi ^{1 2}

Simin Hagh Nazari ¹

¹ Department of Food Science and Engineering, Faculty of Agriculture, University of Zanjan, Zanjan, Iran

² Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan, Iran

چکیده English

This study explores the effects of cold plasma (CP) treatment on eco-friendly starch/ZnO (SZ) bio-nanocomposite films, incorporating 3 wt% nano-ZnO (ZnO NPs) and varying CP exposure times (0, 30, 60, 90 s). The results indicate that prolonged CP treatment increases film thickness, viscosity, water solubility, moisture absorption, and surface roughness, while reducing contact angle and moisture content. No significant changes were observed in water vapor permeability, density, or UV-Vis properties. CP treatment enhanced tensile strength, elongation at break, and tensile energy to break, while decreasing lightness and whiteness indices without altering color difference. The study highlights CP as a rapid, eco-friendly method for modifying films, with greater efficacy when applied to aqueous starch solutions, offering potential for industrial-scale applications in packaging materials.

کلیدواژه‌ها English

Cold plasma

Dual-modification

Green packaging

Nanocomposite

Starch

ZnO

Authors retain the copyright. This is an open access article distributed under Creative Commons Attribution 4.0 International License (CC BY 4.0)

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