نتایج جستجو برای: water vapor permeability and tensile strength were determinedalso

تعداد نتایج: 16989607  

Journal: :Journal of food science 2010
P Kumar K P Sandeep S Alavi V D Truong R E Gorga

The nonbiodegradable and nonrenewable nature of plastic packaging has led to a renewed interest in packaging materials based on bio-nanocomposites (biopolymer matrix reinforced with nanoparticles such as layered silicates). Bio-nanocomposite films based on soy protein isolate (SPI) and modified montmorillonite (MMT) were prepared using melt extrusion. The effect of different type (Cloisite 20A ...

2016
Hyun-Ju Yang Kyung Bin Song

Polylactic acid (PLA) is a biodegradable and renewable polymer, which represents a valuable alternative to plastic packaging films, often associated with environmental problems. In this study, we tested the suitability of PLA as a biodegradable packaging film and assessed the antimicrobial activity of lemongrass oil (LO), incorporated into the PLA film in different concentrations. To obtain the...

2018
Vahid Mahdavi Seyed Ebrahim Hosseini Anousheh Sharifan

In this study, the effect of chitosan film (CF) with different concentrations of anise essential oil AEO (0, 0.5, 1, 1.5 and 2%) on the quality of chicken burger during chilled storage (4 + 1°C) were examined over a period of 12 days. For this purpose, at the first, the physical and mechanical properties of the produced films were studied. Then, the chicken burger was covered with the produced ...

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...

Journal: :Coatings 2021

Four kinds of edible composite films based on chitosan combined with additional substances (konjac glucomannan, cassava starch, maltodextrin and gelatin) the addition lysozyme were prepared used as packaging materials for Mongolian cheese. The evaluated using scanning electron microscopy Fourier transform infrared spectroscopy. physicochemical properties all films, including thickness, viscosit...

Fardin Asadollahi Rouzbeh Dabiri,

Soil reinforcement can be considered as the combination of two parts. One part is soil for compressive stress capacity and another part is some material such as geosynthetics such as steel belts and fibers for tensile stress capacity. Soil improvement is one of the useful methods to increase the strength parameters of the soil. The main goal of this study is to evaluate the effects of GFRP on t...

Journal: :Journal of Polymers and The Environment 2022

In this paper, the effect of adding gum arabic at levels 0–5%, and chromium oxide nanoparticles (Cr2O3 NPs) 0–3%, were optimized on orange peel-based films by response surface methodology. The obtained results reveal a significant increase in water vapor permeability, weight loss, tensile strength, Young's modulus film samples increasing percentage both (p < 0.05). Moreover, addition Cr2O3 NPs ...

Journal: :Coatings 2021

Active films based on carboxymethyl chitosan incorporated corn peptide were developed, and the effect of concentration was evaluated. Physicochemical properties films, including thickness, opacity, moisture content, color, mechanical properties, water vapor permeability, oil resistance, measured. Biological activities antioxidant antibacterial activities, characterized in terms 2, 2-diphenyl-1-...

Journal: :مهندسی بیوسیستم ایران 0
میثم ستاری نجف آبادی دانشجوی کارشناسی ارشد، دانشگاه تربیت مدرس سعید مینایی دانشیار، دانشگاه تربیت مدرس هومن شریف نسب استادیار، موسسه تحقیقات فنی و مهندسی کشاورزی حامد افشاری استادیار دانشگاه آزاد اسلامی واحد بومهن فرزانه ستاری نجف آبادی کارشناسی، دانشگاه گیلان

a suitable option for manufacture of packing materials is the use of clay and silver nano particles. these materials help create optimal relative impermeable quality, in addition to other features being improved. moisture-packed bread by use of these materials prevent water vapor loss and therefore reduce the level of bread becoming stale. in this study, seven types of nano-films with different...

Journal: :Colloids and Surfaces A: Physicochemical and Engineering Aspects 2021

Biopolymeric films with the addition of nanoparticles have been studied as an alternative to replace petroleum-based synthetic packaging, which is difficult recycle and leads a major environmental problem. The goal this study develop characterise biopolymeric chitosan cassava starch titanium dioxide (TiO 2 ) for use food packaging. Chitosan film (2% w/w), chitosan/cassava (1:1) blend were devel...

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