بهبود ماندگاری انگور قرمز با استفاده از بسته‌بندی نانوکامپوزیتی پلی‌اتیلن و فناوری اتمسفر اصلاح‌شده

نوع مقاله : مقاله پژوهشی انگلیسی

نویسندگان

آناهیتا نوروزی تفرشی ¹

شهلا شهریاری ²

تکتم مستقیم ¹

¹ گروه آموزشی علوم و صنایع غذایی، واحد شهر قدس، دانشگاه آزاد اسلامی ، شهر قدس ، ایران

² گروه آموزشی مهندسی شیمی، واحد شهر قدس، دانشگاه آزاد اسلامی ، شهر قدس ، ایران

https://doi.org/10.22067/ifstrj.2025.93924.1450

چکیده

انگورهای یاقوتی قرمز به‌دلیل محتوای غنی آنتوسیانین و خواص تغذیه‌ای و دارویی شناخته شده‌اند، اما فسادپذیری بسیار بالا آنها ماندگاری‌شان را محدود می‌کند. تحقیقات نشان می‌دهد تکنیک‌های پیشرفته بسته‌بندی، مانند بسته‌بندی با اتمسفر اصلاح‌شده (MAP) و فناوری نانو می‌تواند کیفیت و ماندگاری این محصولات تازه را افزایش دهند. هدف این مطالعه بررسی استفاده ترکیبی از این فناوری‌ها برای حفظ کیفیت و افزایش ماندگاری انگورهای یاقوتی است. این مطالعه اثربخشی فیلم‌های بسته‌بندی پلی‌اتیلن حاوی نانوذرات نقره و دی‌اکسید تیتانیوم را در ترکیب با بسته‌بندی با اتمسفر اصلاح‌شده (50% CO₂ + 5% O₂ + 45% N₂) ارزیابی کرد. آزمایش‌ها تحت سه شرایط دمایی (25 درجه سلسیوس، 15 درجه سلسیوس و 4 درجه سلسیوس) در یک دوره نگهداری 28 روزه انجام شد. نمونه‌ها در پنج بازه زمانی (0، 7، 14، 21 و 28 روز) از نظر ویژگی‌های کیفی و بار میکروبی ارزیابی شدند. این رویکرد به هدف بررسی رشد میکروبی و کاهش کیفیت در انگورهای نگهداری شده در دماهای مختلف انتخاب شد. یافته‌ها نشان‌دهنده کاهش مداوم محتوای آنتوسیانین و شدت رنگ در طول دوره نگهداری، در کنار افزایش مواد جامد محلول بود. بررسی رشد میکروبی، تعداد کپک و مخمر بیشتری را در انگورهای نگهداری شده در دمای 25 و 15 درجه سلسیوس در مقایسه با انگورهای نگهداری شده در دمای 4 درجه سلسیوس نشان داد. بسته‌بندی با اتمسفر اصلاح‌شده و فیلم‌های نانوکامپوزیتی حاوی نانوذرات نقره و دی‌اکسید تیتانیوم به‌طور مؤثری کیفیت انگور را به‌ویژه در دمای 4 درجه سلسیوس حفظ کرد، که در طول 28 روز نتایج بهتری مشاهده شد. این مطالعه، پتانسیل استفاده هم زمان بسته‌بندی با اتمسفر اصلاح‌شده و فیلم‌های با نانوذرات را برای رفع محدودیت‌های روش‌های سنتی نگهداری انگور نشان می‌دهد. این دستاورد جدید، راه‌حل‌های عملی برای صنعت باغبانی ارائه می‌دهد و راه را برای بهبود فناوری‌های ذخیره‌سازی و نگهداری هموار می‌کند.

کلیدواژه‌ها

انگور یاقوتی

بسته‌بندی با اتمسفر اصلاح‌شده

پلی‌اتیلن

نانوذرات نقره

نانودی‌اکسید تیتانیوم

موضوعات

• فناوری مواد غذایی

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عنوان مقاله English

Improving the Shelf Life of Red Grapes Using Polyethylene Nanocomposite Packaging and Modified Atmosphere Techniques

نویسندگان English

Anahita Norouzi Tafreshi ¹

Shahla Shahriari ²

Toktam Mostaghim ¹

¹ Department of Food Science and Technology, ShQ.C., Islamic Azad University, Shahr-e Qods, Iran

² Department of Chemical Engineering, ShQ.C., Islamic Azad University, Shahr-e Qods, Iran

چکیده English

Red ruby grapes are known for their rich anthocyanin content and nutritional and medicinal properties, but their high perishability limits postharvest shelf life. Current research highlights the potential of advanced packaging techniques, such as modified atmosphere packaging (MAP), and nanotechnology to enhance the quality and shelf life of fresh products. This study aims to investigate the combined use of these technologies to maintain the quality and increase the shelf life of red ruby grapes. This study evaluated the effectiveness of polyethylene packaging films containing silver nanoparticles and titanium dioxide with modified atmosphere packaging (50% CO₂ + 5% O₂ + 45% N₂). The experiments were conducted under three temperature conditions (25°C, 15°C, and 4°C) and over a 28-day storage period. Samples were assessed at five intervals (0, 7, 14, 21, and 28 days) for quality attributes and microbial loads. This approach was chosen to address the challenges of microbial growth and quality deterioration in grapes stored at different temperatures. The findings showed a continuous decrease in anthocyanin content and color intensity during the storage period, alongside an increase in soluble solids. Microbial analysis showed higher mold and yeast counts in grapes stored at 25°C and 15°C compared to those stored at 4°C. Packaging with MAP and nanocomposite films containing silver nanoparticles and titanium dioxide effectively preserved the quality of grapes, particularly at 4°C, where superior results were observed over the 28 days. This study demonstrates the integration of MAP and films containing nanoparticles to address the limitations of conventional grape storage methods. This approach offers practical solutions for the horticultural industry and contributes to the advancement of storage and preservation technologies.

کلیدواژه‌ها English

Modified atmosphere packaging

Nanosilver

Nanotitanium dioxide

Polyethylene

Ruby grape

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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