شبیه‌سازی فرایند تولید نانوامولسیون اسانس روغنی آویشن با آب تحت فشار و ارزیابی خواص آن

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشکده مهندسی شیمی، دانشگاه صنعتی سهند تبریز، تبریز، ایران

2 مدیر گروه مهندسی صنایع غذایی، دانشکده مهندسی شیمی، دانشگاه صنعتی سهند تبریز

10.22059/ijbse.2019.285553.665203

چکیده

شبیه­سازی فرآیند می­تواند گامی مثبت در کاهش هزینه و زمان باشد، نانوامولسیون اسانس آویشن با استفاده از تویین80 تحت شرایط آب تحت فشار (دمای بالاتر از 100 درجه سلسیوس) تولید گردید. شبیه­سازی شرایط عملیاتی با استفاده از نرم افزار COMSOL-Multiphysics انجام گرفت و ویژگی­های محصول مورد ارزیابی قرار گرفت. نتایج حاصل از شبیه­سازی نشان داد که در دمای 120درجه سلسیوس و زمان 120 دقیقه حرارت­دهی، دمای مربوط به محفظه حاوی نانوامولسیون اسانس آویشن بازه دمایی 108 الی 111 درجه سلسیوس بوده که شرایط آب تحت فشار را پوشش خواهد داد. ویژگی­های فیزیکی و شیمیایی نانوامولسیون تولید شده مورد ارزیابی قرار گرفت، میانگین اندازه ذرات 33 نانومتر با شاخص پراکندگی ذرات 212/0 و پتانسیل زتای 5/13- میلی­ولت، بدست آمد، در نهایت مورفولوژی نانوامولسیون تولید شده نشان از کروی بودن نانو قطرات روغن بود که نشان دهنده پایداری ترمودینامیکی بالای نانوامولسیون تولید شده می باشد. 

کلیدواژه‌ها


عنوان مقاله [English]

Simulation of the Preparation of Thyme Essential Oil Nanoemulsion Process Using Sub-critical Water and Evaluation of Its Properties

نویسندگان [English]

  • Omid Ahmadi 1
  • Hoda Jafarizadeh-Malmiri 2
1 Faculty of Chemical Engineering, Sahand University of Technology, Tabriz, Iran
2 Faculty of Chemical Engineering, Sahand University of Technology, Tabriz, Iran
چکیده [English]

Simulating of operating conditions for different processes is a positive step towards saving time and cost. In the present study, Thyme essential oil nanoemulsions using tween 80, as emulsifier, under sub-critical water conditions (Temperature above 100 ° C) were prepared according to the results of the simulation of operating conditions using the COMSOL Multiphysics software and their physical properties were evaluated. The simulation results showed that heating at temperature of 120 ° C up to 120 minutes, could not provide sub-critical water conditions, and the Thyme essential oil nanoemulsions were not formed. However, oven heating of sealed container containing Thyme essential oil nanoemulsions, at same temperature for minimum 120 min, indicated that the temperature of the formed nanoemulsions was ranged in108 to 111 ° C, which that was completely satisfied sub-critical water temperature condition. Physico-chemical properties of Thyme essential oil in water nanoemulsions were analyzed using DLS, FTIR and TEM. Obtained results indicated that the prepared nanoemulsions under sub-critical water conditions had particle size, polydispersity index and zeta potential of 33 nm, 0.221 and -13.5 mV, respectively. Morphological attributes of the formed nanodroplets indicated that nanodroplets with spherical shape were formed which that revealed their highest thermodynamic stability.

کلیدواژه‌ها [English]

  • Nanoemulsion
  • Thyme essential oil
  • simulation
  • Sub-critical water
  • Operation conditions
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