الکتروریسی بدون نازل: نانوانکپسولاسیون اسانس زنیان با استفاده از نانوالیاف کیتوزان-ژلاتین

نوع مقاله : مقاله پژوهشی لاتین

نویسندگان

• بهناز وفانیا
• میلاد فتحی
• صبیحه سلیمانیان زاد

دانشگاه صنعتی اصفهان

https://doi.org/10.22067/ifstrj.2022.78402.1199

چکیده

هدف از این تحقیق بررسی کارایی الکتروریسی بدون نازل برای انکپسوله کردن اسانس زنیان (به‌عنوان یک زیست فعال آبگریز) با استفاده از دو هیدروکلوئید (کیتوزان/ژلاتین) به‌منظور افزایش خواص آنتی‌اکسیدانی و پایداری آن برای کاربردهای غذایی بود. نانوالیاف با استفاده از کیتوزان/ژلاتین در نسبت‌های 1:6، 1:8 و 1:10 و غلظت‌های 20 و 40 درصد زنیان ریسیده شدند. خواص محلول (ویسکوزیته و هدایت الکتریکی) اندازه‌گیری شد. داده‌های کارایی انکپسولاسیون و ظرفیت بارگذاری مبین بهبود با افزایش غلظت اسانس بود. قطر و مورفولوژی الیاف با میکروسکوپ الکترونی روبشی مورد بررسی قرار گرفت. نانوالیاف کیتوزان/ژلاتین با نسبت 1:6 حاوی 40 درصد اسانس دارای بیشترین کارایی انکپسولاسیون (9/99%)، ظرفیت بارگذاری (9/39%) و کمترین قطر ( nm146) بودند. طیف‌سنجی فروسرخ با انعکاس کلی ضعیف شده (ATR-FTIR) ثابت کرد که حین الکتروریسی، هیچ برهمکنش شیمیایی بین مواد تشکیل‌دهنده رخ نداده است و داده‌های کالریمتری روبشی افتراقی (DSC) نشان داد که اسانس به‌خوبی در نانوالیاف محصور شده است. خواص آنتی‌اکسیدانی توسط آزمون DPPH تجزیه و تحلیل شد و کارایی کپسولاسیون برای محافظت از آنتی‌اکسیدان‌ها را تأیید کرد.

کلیدواژه‌ها

• اسانس زنیان
• فعالیت آنتی‌اکسیدانی
• انکپسولاسیون
• نانوالیاف
• الکتروریسی بدون نازل

موضوعات

• مهندسی مواد غذایی

عنوان مقاله [English]

Nozzle-less electrospinning: Nanoencapsulation of ajwain essential oil using chitosan-gelatin nanofibers

نویسندگان [English]

• Behnaz Vafania
• Milad Fathi
• Sabiheh Soleimanian Zad

Isfahan University of Technology

چکیده [English]

The aim of this research was to investigate the efficiency of nozzle-less electrospinning for encapsulation of ajwain essential oil (as a hydrophobic bioactive) using two hydrocolloids (chitosan/gelatin) in order to enhance its antioxidant properties and stability for food applications. Nanofibers were spun using chitosan/gelatin in ratios of 1:6, 1:8 and 1:10 and ajwain concentrations of 20 and 40%. Solution properties (i.e. viscosity and electrical conductivity) were measured. Encapsulation efficiency and loading capacity data illustrated an enhancement with increasing of essential oil concentration. Fibers diameter and morphology were studied by scanning electron microscopy (SEM). The chitosan/gelatin nanofibers with ratio of 1:6 containing 40% essential oil had the highest encapsulation efficiency (99.9%), loading capacity (39.9%) and the smallest diameter (146 nm). Attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) proved that during electrospinning, no any chemical interaction was occurred between ingredients and differential scanning calorimetry (DSC) data showed that essential oil was well encapsulated in nanofibers. Antioxidant properties were analyzed by 2,2-diphenyl-1-picrylhydrazylradical and approved the efficiency of encapsulation for protection of antioxidants.

کلیدواژه‌ها [English]

• Ajwain essential oil
• Antioxidant activity
• Encapsulation
• Nanofibers
• Nozzle-less electrospinning

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