استخراج اسانس رزماری و استفاده از آن در تهیه بیوکامپوزیت بر پایه فیلم موسیلاژ بذر شنبلیله و پودر پوست بادمجان حاوی نانوذرات مس

نویسندگان
فاطمه خاکپور
سجاد پیرسا
دانشکده کشاورزی، دانشگاه ارومیه، ارومیه، ایران
10.22034/FSCT.21.148.176
چکیده
افزودن نانوذرات مس و اسانس رزماری می‌تواند سبب بهبود خواص ساختاری و مکانیکی فیلم‌‌های بر پایه موسیلاژ بذر شنبلیله و پودر پوست بادمجان شود. هدف در این مطالعه تهیه فیلم‌های خوراکی بر پایه موسیلاژ بذر شنبلیله و پودر پوست بادمجان حاوی نانوذرات مس (0، 2، 4 %) وزنی/وزنی و اسانس رزماری(0، 4، 8 %) وزنی/حجمی بود. فیلم‌های خوراکی بر پایه موسیلاژ بذر شنبلیله و پودر پودر پوست بادمجان تهیه شده و نانوذرات مس (0، 2، 4 %) و اسانس رزماری (0، 4، 8 %) به آن افزوده شد. خواص ساختاری و مکانیکی فیلم‌ها تهیه شده بررسی شد. مطابق نتایج به دست آمده با افزایش مقدار نانوذرات مس و اسانس رزماری در فیلم باعت کاهش خواص مکانیکی فیلم‌ها شد. مطابق نتایج به دست آمده با افزایش مقدار نانوذرات مس و اسانس رزماری در فیلم باعت کاهش بافت مکانیکی فیلم‌ها شد. تجزیه و تحلیل پراش اشعه ایکس (XRD) نشان داد که نانوذرات مس به طور فیزیکی با پلیمر موسیلاژ بذر شنبلیله و پودر پوست بادمجان ترکیب شده‌اند باعث تضغیف ساختار کریستالی شده‌اند. نتایج تبدیل فوریه فروسرخ (FTIR) حضور فیزیکی نانوذرات مس را در ماتریس پلیمری تایید کرد. نتایج میکروسکوپ الکترونی روبشی (SEM)نشان داد که مورفولوژی سطح نانوکامپوزیت فیلم نسبت به موسیلاژ بذر شنبلیله و پودر پوست بادمجان ناهمگن است. قرار گرفتن فیلم شناساگر تهیه شده در معرض pHهای مختلف، منجر به تغییر رنگ فیلم‌ها از رنگ قرمز به رنگ زرد گردید. این تغییرات رنگی فیلم‌ها با تغییرات رنگی محلول آنتوسیانین همخوانی داشت. افزودن نانوذرات مس و اسانس رزماری به فیلم‌های خوراکی بر پایه موسیلاژ بذر شنبلیله و پودر پوست بادمجان سبب بهبود فوریه مادون قرمز (FTIR) فیلم‌ها، همچنین موجب تضعیف خواص مکانیکی گردید.
کلیدواژه‌ها
فیلم خوراکی
موسیلاژ
نانوذرات مس و اسانس رزماری

موضوعات

عنوان مقاله English

Extraction of rosemary essential oil and its use in the preparation of biocomposite based on mucilage film of fenugreek seeds and eggplant skin powder containing copper nanoparticles.

نویسندگان English

fatemeh khakpour
Sajad Pirsa
university
چکیده English

Adding copper nanoparticles and rosemary essential oil can improve the structural and mechanical properties of films based on fenugreek seed mucilage and eggplant skin powder. The aim of this study was to prepare edible films based on mucilage of fenugreek seeds and eggplant skin powder containing copper nanoparticles (0, 2, 4% w/w) and rosemary essential oil (0, 4, 8% w/v). Edible films were prepared based on mucilage of fenugreek seeds and eggplant peel powder, and copper nanoparticles (0, 2, 4%) and rosemary essential oil (0, 4, 8%) were added to it. The structural and mechanical properties of the prepared films were investigated. According to the obtained results, increasing the amount of copper nanoparticles and rosemary essential oil in the film decreased the mechanical properties of the films. According to the obtained results, increasing the amount of copper nanoparticles and rosemary essential oil in the film decreased the mechanical texture of the films. X-ray diffraction (XRD) analysis showed that copper nanoparticles were physically combined with fenugreek seed mucilage polymer and eggplant skin powder, resulting in the strengthening of the crystal structure. Fourier transform infrared (FTIR) results confirmed the physical presence of copper nanoparticles in the polymer matrix. The results of the scanning electron microscope (SEM) showed that the surface morphology of the nanocomposite film is heterogeneous compared to fenugreek seed mucilage and eggplant skin powder. Exposure of the prepared detector film to different pHs led to the change of the color of the films from red to yellow. These color changes of the films were consistent with the color changes of the anthocyanin solution. The addition of copper nanoparticles and rosemary essential oil to edible films based on fenugreek seed mucilage and eggplant skin powder improved the Fourier transform infrared (FTIR) of the films, and also weakened the mechanical properties.

کلیدواژه‌ها English

Edible film
Mucilage
copper nanoparticles and rosemary essential oil
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