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فرشاد صحبت زاده لنبر

فرشاد صحبت زاده لنبر

مرتبه علمی: استاد
ارکید:
تحصیلات: دکترای تخصصی
اسکاپوس:
دانشکده: دانشکده علوم پایه
نشانی:
تلفن: 9125155360

مشخصات پژوهش

عنوان
Improving gelatin-based emulsion films with cold plasma using different gases
نوع پژوهش
JournalPaper
کلیدواژه‌ها
cold plasma, emulsion films, gelatin, mechanical properties, surface hydrophobicity
سال
2020
مجله Food Science & Nutrition
شناسه DOI
پژوهشگران shahrbanoo ahmadi ladari ، Jafar Mohammadzade milani ، farshad Sohbaztadeh Lonbar

چکیده

In this research, the effects of cold plasma treatment on the properties of gelatinbased emulsion films (GEFs) using different gases were investigated. The gases used include O2, N2, air, Ar, and ethanol-argon (EtOH-Ar). Surface hydrophobicity, morphology, water vapor permeability (WVP), and mechanical, thermal, and antifungal properties after plasma application on the film were analyzed. The results revealed that surface hydrophilicity significantly increased after cold plasma, while the contact angle significantly decreased (p < .05). Furthermore, atomic force microscopy results showed that the argon gas plasma significantly increased roughness of the GEFs surface. Besides, plasma did not decrease WVP. Different gases had no significant effect on the mechanical properties of the GEFs (p > .05). Oxygen permeability after plasma application was significantly different from the control sample; consequently, the permeability after plasma application decreased and the lowest level 55.7 (cm3 μm m−2 day−1 Pa−1) was seen for oxygen gas. Plasma treatment caused etching effects and lessened the surface moisture of the polymer film. Antimicrobial activity was observed in the cold plasma-treated samples, especially under air and nitrogen atmosphere. Cold plasma treatment is an effective method for surface modification, expanding the application of emulsion films in the packing industry with improved performance properties