عنوان مقاله [English]
Nowadays, most materials used for food packaging are practically non-degradable, representing a serious global environmental concern. Accordingly, edible ﬁlms based on natural materials are receiving much attention as potential packaging materials, principally due to their biodegradability which is considered to be a promising solution to environmental impacts of synthetic polymer packaging. However, biopolymer ﬁlms are limited in their ability due to disadvantages related to performance such as brittleness, poor moisture barrier and mechanical properties. The main goal of this study was the isolation and incoporation of cellulose nanocrystal (CNC) prepared from oat husk to whey protein biofilm to improve its mechanical properties. In this regard, acid hydrolysis was used in order to isolate of nanocrystalline cellulose from the oat husk. Consequently, bionanocomposite film based on whey protein isolate and CNC in percentages of 0, 2.5, 5 and 7.5 (w/w) were prepared by casting sollution method and then the reinforcing effects of cellulose nanocrystalline on surface properties, mechanical properties, water vapor permeability (WVP) and transparency on the film were studied. Results indicateed all of the composite were suitable for evelation mechanical and tensile properties. The films prepared of 5% CNC showed the highest tensile strenght and modulus of elasticity and the lowest elongation at break. Addition of CNC caused lower WVP that could decrease the WVP up to 36%. The transparency of films were decreased with increasing of CNC concentration and the surface of film was rough. In total the result showed that isolation of CNC from the oat husk have positive effects on physical properties of whey protein isolate biofilm and help in improving its properties.
 مطلبی، ع.؛ حسن ذاتی رستمی، آ.؛ خانی پور، ع.؛ سلطانی، م. (1391) اثر پوشش خوراکی پروتئین آب پنیر بر رطوبت و ویژگیهای حسی ماهی کلیکای شکم خالی. علوم غذایی و تغذیه، جلد9، شماره4، ص 48-39.
 حاتمی، ا.؛ باریکانی، م.؛ سیدمحقق، س.م. (1390) نانوکریستالهای سلولز؛ بررسی ساختار، خواص و کاربرد. ماهنامه فناوری نانو، شماره9، ص 29-25.