Antifungal activity of nano-composite films based on Poly Lactic Acid
نویسندگان
چکیده مقاله:
Objective(s): Nanocomposite active packaging systems were used to prepare antimicrobial and antifungal properties. This study was to investigate the physical and antimicrobial activity of prepared films against three types of aflatoxin producing fungi Aspergillus Flavus. Material and methods: For investigating the effect of antibacterial nano-covers, the direct contact of 0, 1%, 3% and 5% zinc oxide nanoparticles was contaminated with standard strains of three types of Aspergillus Flavus (PTCC 5004), Aspergillus Parasiticus (PTCC 5286) and Aspergillus Parasiticus (PTCC5018) provided. Pistachios were coated by edible films then peroxid index gradient were measured during the time for coating Pistachios containing different concentrations of 0, 1 and 3% of “nano-ZnO”. Then coating pistachios were preserved inside sealed Polyethylene bags for six months and the effect of preventing fungal growth during the time were investigated. Results: The study of antifungal properties of films on three Aspergillus spp. showed that all four percent of nano zinc oxides in this study has inhibitory effect by increasing the percentage of nano-materials significantly (P <0.05). Poly lactic acid edible films Containing 5% nanoparticles has appropriate coating with anti-oxidation agent. Nano-coating Pistachios were observed any growth of mold, however, growth was observed in all control samples. Conclusion: Poly lactic acid films containing nano-zinc oxide show a high potential for antifungal pistachios packaging applications to enhance the shelf life of this products.
منابع مشابه
Characterization of Antimicrobial Poly (Lactic Acid)/Nano-Composite Films with Silver and Zinc Oxide Nanoparticles
Antimicrobial active films based on poly (lactic acid) (PLA) were prepared with nano-silver (nano-Ag) and nano-zinc oxide (nano-ZnO) using a solvent volatilizing method. The films were characterized for mechanical, structural, thermal, physical and antimicrobial properties. Scanning electron microscopy (SEM) images characterized the fracture morphology of the films with different contents of na...
متن کاملNovel silicon dioxide -based nanocomposites as an antimicrobial in poly (lactic acid) nanocomposites films
Objective(s): Due to nanocomposites antimicrobial properties, one of the most extensive usages of nano-products is in packing industry. Thus, the production of packages with nanotechnology can effectively prevent against a variety of microorganisms. In this study, the silicon dioxide nanoparticles the poly (lactic acid) PLA films on antimicrobial and permeability was investigated. Methods...
متن کاملEvaluation of the novel three-dimensional porous poly (L-lactic acid)/nano-hydroxyapatite composite scaffold.
To determine the optimal ratio of nano-hydroxyapatite (n-HA) to polylactic acid (PLLA) in the novel three-dimensional porous PLLA/n-HA composite scaffolds, low-temperature rapid prototyping technology was employed to fabricate the composite materials with different n-HA contents. Mechanical properties and degradation behaviors of the composites were examined, and the scaffold microstructure and...
متن کاملMorphological and mechanical properties of Poly (lactic Acid) /zinc oxide nanocomposite films
Objective(s): Nowadays, tendency to use green materials can reduce environmental pollution and plastic waste. Poly (lactic Acid) PLA is one of the natural biodegradable polymers mainly used in the production of bioplastics for packaging which is made of non-toxic compounds and is easily biodegradable. In this research, the effect of 1, 3 and 5% nanocomposite zinc oxide on the morphological, mec...
متن کاملAntimicrobial properties and permeability of Poly lactic Acid nanocomposite films containing Zinc Oxide
Objective(s): Since microbial contamination can reduce the shelf life of the foodstuff and there is a potential for the growth of some pathogen microorganisms, films containing antimicrobial agents were produced, which are also biodegradable. In this study, the effect of 1, 3 and 5% nano-zinc oxide on antimicrobial properties and permeability of poly lactic acid film was invest...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ذخیره در منابع من قبلا به منابع من ذحیره شده{@ msg_add @}
عنوان ژورنال
دوره 4 شماره 3
صفحات 186- 192
تاریخ انتشار 2019-09-01
با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023