بررسی ویژگی‌های عملکردی، مکانیکی و ساختاری فیلم زیست‌ تخریب‌ پذیر ایزوله پروتئین سویا حاوی نانورس (مونت موریلونیت) و اسانس مریم ‌گلی

نویسندگان
رقیه اشرفی یورقانلو 1
مهلا پیروزی فرد 2
هاله همتی 3
1 دانشیار، گروه مهندسی کشاورزی، دانشگاه فنی و حرفه ‌ای، تهران، ایران
2 کارشناسی ارشد، گروه مهندسی کشاورزی، دانشگاه فنی و حرفه‌ ای، تهران، ایران
3 کارشناسی ارشد، گروه مهندسی کشاورزی، دانشگاه فنی و حرفه‌ ای، تهران، ایران.
10.22034/FSCT.21.146.93
چکیده
در این پژوهش فیلم ‏های تولیدی بر پایه پروتئین سویا با دو متغیر نانورس در سه سطح (0، 0/5 و 1%) و اسانس مریم‏ گلی در سه سطح مختلف (ppm 500، 250 و 0) تولید شده و تاثیر این دو متغیر بر خصوصیات عملکردی و مکانیکی و ساختاری فیلم ‏های زیست‏ تخریب‏ پذیر تولیدی مورد بررسی قرار گرفت. نتایج نشان داد که با افزودن درصدهای مختلف از نانورس بر بستر فیلم پروتئین سویا، محتوای رطوبتی، میزان حلالیت، نفوذپذیری نسبت به بخارآب و شفافیت نمونه ‏ها نسبت به نمونه شاهد به طور معنی ‏داری کاهش یافت. این کاهش در شاخص ‏ها با افزایش غلظت به کار رفته از اسانس مریم‏ گلی مشهودتر بود. به طوریکه در بین نمونه ‏های تولیدی، فیلم حاوی 1% نانورس و ppm 500 اسانس مریم‏ گلی، دارای تراوایی نسبت به بخارآب معادل g/m.s.pa 10-11× 32/02 بود. همچنین افزودن نانورس و اسانس مریم‏ گلی سبب افزایش معنی‏ داری در محتوای آنتی ‏اکسیدانی نمونه ‏ها شد و نمونه محتوی 1% نانورس و ppm 500 اسانس مریم ‏گلی با 32/88% بیشترین محتوای آنتی ‏اکسیدانی را داشت. بررسی نتایج طیف‏ سنجی و ریزساختاری فیلم ‏های بدست آمده نیز بیانگر تعامل مناسب بین نانوذره و اسانس با بستر پروتئین سویا و ایجاد پیوندهای قوی و جدید می ‏باشد. نتایج بدست آمده نشان داد که افزودن نانورس و اسانس مریم‏ گلی می ‏تواند اثرات مثبتی بر خصوصیات فیزیکی و ساختاری فیلم ایزوله پروتئین سویا داشته باشد.
کلیدواژه‌ها
اسانس مریم‌ گلی
ایزوله پروتئین سویا
فیلم زیست تخریب پذیر
نانورس

موضوعات

عنوان مقاله English

Investigating the Functional, Mechanical and Structural Characteristics of Soy Protein Isolate Biodegradable Film Containing Nanoclay (Montmorillonite) and Salvia officinalis Essential oil

نویسندگان English

Roghiye Ashrafi Yorghanlu 1
mahla pirouzifard 2
Haleh Hemmati 3
1 Associate Professor, Department of Agricultural Engineering, Technical and Vocational University (TVU), Tehran, Iran
2 MSc, Department of Agricultural Engineering, Technical and Vocational University (TVU), Tehran, Iran
3 MSc, Department of Agricultural Engineering, Technical and Vocational University (TVU), Tehran, Iran
چکیده English

In this research, production films based on soy protein were produced with two variables of nanoclay at three levels (0, 0.5 and 1%) and Salvia officinalis Essential oil at three different levels (0, 250 and 500 ppm) and the effect of this Two variables were investigated on the functional, mechanical and structural characteristics of the produced biodegradable films. The results showed that by adding different percentages of nanoclay on the soy protein film substrate, the moisture content, solubility, permeability to water vapor and transparency of the samples decreased significantly compared to the control sample. This decrease in indicators was more evident with increasing concentration of Salvia officinalis Essential oil. Among the production samples, the film containing 1% nanoclay and 500 ppm of Salvia officinalis Essential oil had a water vapor permeability of 32.02´10-11 g/m.s.pa. Also, the addition of nanoclay and Salvia officinalis essential oil caused a significant increase in the antioxidant content of the samples, and the sample containing 1% nanoclay and 500 ppm of Salvia officinalis essential oil had the highest antioxidant content with 32.88%. Examining the results of spectroscopy and microstructure of the obtained films also shows the proper interaction between nanoparticle and essential oil with soy protein substrate and creating strong and new bonds. The obtained results showed that the addition of nanoclay and Salvia officinalis essential oil can have positive effects on the physical and structural properties of soy protein isolate film.

کلیدواژه‌ها English

Biodegradable film
Nanoclay
Salvia officinalis essential oil
Soy protein isolate
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