سنتز فیلم‌های بیوکامپوزیت بر پایه کازئینات سدیم تقویت‌شده با صمغ‌های ژلان و فارسی و ارزیابی ویژگی‌های فیزیکومکانیکی و مورفولوژی آن

نویسندگان
1 دانشیار گروه بهداشت مواد غذایی و آبزیان، دانشکده دامپزشکی، دانشگاه فردوسی مشهد، مشهد، ایران.
2 دانشجوی دکتری تخصصی، رشته بهداشت و ایمنی مواد غذایی، گروه بهداشت و ایمنی مواد غذایی، داشکده بهداشت، دانشگاه علوم پزشکی تهران،
3 دانشجوی دکتری تخصصی بهداشت مواد غذایی، دانشکده دامپزشکی، دانشگاه فردوسی مشهد، مشهد، ایران
4 استادیار، گروه علوم و صنایع غذایی، دانشکده تغذیه و علوم صنایع غذایی، دانشگاه علوم پزشکی کرمانشاه، ایران
5 استادیار، گروه زراعت و اصلاح نباتات، واحد مشهد، دانشگاه آزاد اسلامی، مشهد، ایران،
چکیده
اخیراً طراحی و تولید فیلم‌های زیست‌تخریب‌پذیر نسبت به بسته‌بندی‌های سنتتیک به دلیل کاهش آلودگی‌های زیست‌محیطی توجه ویژه‌ای را به خود اختصاص داده‌اند. هدف از این مطالعه بررسی تأثیر صمغ‌های فارسی (1%) و صمغ ژلان (1%) بر روی خواص فیزیکی، مکانیکی و مورفولوژی فیلم‌های کامپوزیت بر پایه کازئینات سدیم (10%) به‌عنوان عوامل تقویت‌کننده فیلم‌ها می‌باشد. فیلم‌ها به روش تبخیر حلال سنتز شدند و تأثیر هر یک از صمغ‌ها بر روی خصوصیات فیلم‌های کامپوزیتی مورد ارزیابی قرار گرفت. نتایج نشان داد که افزودن صمغ‌ها باعث تقویت فیلم‌های کامپوزیتی شد. فیلم‌های کامپوزیتی مقاومت مکانیکی و خصوصیات ممانعت کنندگی خوبی در برابر رطوبت و نور را نشان دادند. خصوصیات سطحی و مورفولوژی فیلم‌ها همچنین نشان داد که صمغ‌ها سازگاری خوبی با فیلم پروتئینی کازئین داشتند و باعث تشکیل فیلم‌های یکنواخت و منسجم شدند. علاوه بر این فیلم‌های کامپوزیتی از شفافیت قابل قبولی برخوردار بودند. به‌این‌ترتیب نتیجه‌گیری می‌شود که استفاده از فیلم‌های کامپوزیتی و ترکیب پلی ساکاریدهای مختلف با ماتریکس‌های پروتئینی می‌توانند باعث بهبود خصوصیات فیلم‌های حاصل شوند.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Fabrication of biocomposite films based on sodium caseinate reinforced with gellan and Persian gums and evaluation of physicomechanical and morphology properties

نویسندگان English

Mohammad Mohsenzadeh 1
Mahmood Alizadeh-Sani 2
Mohammad Maleki 3
Maryam Azizi-lalabadi 4
Roya Rezaeian-Doloei 5
1 Associate Professor, Department of Food Hygiene and Aquaculture, Factulty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
2 - Ph.D. student, Student’s Scientific Research Center, Department of Food Safety and Hygiene, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
3 - Ph.D. student, Department of Food Hygiene and Aquaculture, Factulty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
4 - Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
5 Assistant Professor, Department of Agronomy and plant breeding, Mashhad Branch, Islamic Azad University, Mashhad, Iran
چکیده English

Recently, the design and production of biodegradable films have received special attention than synthetic packaging due to the reduction of environmental pollution. The aim of this study was to investigate the effect of Persian gums (1%) and gellan gum (1%) on the physical, mechanical and morphological properties of composite films based on sodium caseinate (10%) as film reinforcing agents. The films were synthesized by solvent evaporation and the effect of each gum on the characteristics of the composite films was evaluated. The results showed that the addition of gums strengthened the composite films. So that the composite films showed mechanical resistance and good barrier properties versus moisture and light. The surface properties and morphology of the films also showed that the gums were well computability to the casein film and formed uniform and stiff films. In addition, composite films had acceptable transparency. Thus, it can be concluded that the use of composite films and the combination of different polysaccharides with protein matrices can improve the properties of the resulting films. On the other hand, by adding antimicrobial and antioxidant agents to biodegradable films, they can be considered as active packaging.

کلیدواژه‌ها English

: Biodegradable Films
Sodium Casein
gellan gum
Persian gum
Mechanical Resistance
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