نتایج جستجو برای: water vapor oxygen permeability

تعداد نتایج: 801862  

Journal: :journal of food and bioprocess engineering 0
marziye mirzakhani transfer phenomena laboratory (tpl), department of food science, technology and engineering, faculty of biosystems engineering, university of tehran sohrab moini transfer phenomena laboratory (tpl), department of food science, technology and engineering, faculty of biosystems engineering, university of tehran zahra emam-djomeh transfer phenomena laboratory (tpl), department of food science, technology and engineering, faculty of biosystems engineering, university of tehran

biological packaging material based on obtained proteins from fish waste, are biopolymers that have the capability of biodegradable film formation. thus, purpose of this research is to study and investigate some of films’ physical features made from trout fish myofibril protein. the film forming solution containing 1.5%, 2% and 2.5%(w/v)myofibril protein isolate of 100ml solution and glycerol a...

2015

Replacement of plastics used in the food industry seems to be a serious issue to overcome mainly the environmental problems in recent years. This study investigates the hydrophilicity and permeability properties of starch biopolymer which ethylene vinyl alcohol (EVOH) (0-10%) and nanocrystalline cellulose (NCC) (1-15%) were used to enhance its properties. Starch -EVOH nanocomposites were prepar...

Journal: :Journal of agricultural and food chemistry 2009
Miguel A Cerqueira Alvaro M Lima Bartolomeu W S Souza José A Teixeira Renato A Moreira António A Vicente

The objective of the present study was to apply the polysaccharides from different nontraditional sources for cheese coatings. Chitosan, galactomannan from Gleditsia triacanthos, and agar from Glacilaria birdiae were tested, with different formulations and with the addition of plasticizer and corn oil. The surface properties of the cheese and the wetting capacity of the coatings on the cheese w...

Journal: :Canadian Journal of Physics 1959

Journal: Journal of Nuts 2011
Babak Ghanbarzadeh Naser Sedaghat Younes Zahedi

Many factors influence physical properties of edible composite films fabricated from hydrocolloids and lipids. Novel edible emulsified films were made using PGP, glycerol and stearic (SA) or oleic (OA) fatty acids by Tween-80 addition and emulsification of filmogenic solutions. In this study, the effect of physical state of fatty acids on the pistachio globulin protein (PGP) edible film prop...

Journal: :مهندسی بیوسیستم ایران 0
حمیده سپردار دانش آموخته کارشناسی ارشد علوم و صنایع غذایی،گروه علوم و صنایع غذایی، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد شهرکرد ابراهیم رحیمی دانشیار، گروه علوم و صنایع غذایی، دانشکده کشاورزی، دانشگاه آزاداسلامی واحد شهرکرد ایمان شهابی قهفرخی استادیار گروه علوم و صنایع غذایی-دانشگاه زنجان

in the past decades, environmental pollution caused by plastic packing materials, restrictions of petroleum resources and their high price attracted many researchers to produce biodegradable packaging materials. poor mechanic properties and high water vapor permeability are two main defects of biodegradable polymers. nanotechnology is a modification method in this case. in the current study, th...

Journal: :journal of chemical health risks 0
ali asghar barzegaran 1department of food technology, damghan branch, islamic azad university, damghan, iran maryam jokar 1department of food technology, damghan branch, islamic azad university, damghan, iran majid javanmard dakheli department of food science, iranian research organization for science & technology, tehran, iran

polyamide 6 has been widely used in food packaging applications and also green tea contains amounts of antioxidant compounds. the aim of this study was investigation of green tea effects on properties of polyamide packaging polymer. polyamide 6 was dissolved in methanol which was saturated with calcium chloride. the active packaging film was produced by incorporation of methanol green tea extra...

2006
Jonas Hartman

Polysaccharides constitute an important source of raw materials for the packaging industry today. Polysaccharides have good natural barrier properties which are necessary for packaging films. Cellulose is the forerunner among renewable polymers for such applications. Hemicelluloses represent a new interesting breed of barrier materials. We have chosen to work with the hemicellulose O-acetylgala...

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