بررسی خواص فیزیکوشیمیایی و مکانیکی فیلم نانوکامپوزیت بر پایه وی پروتئین ایزوله و پکتین حاوی نانو ذرات اکسید مس و رنگدانه چغندر لبویی (بتانین)

نویسندگان
زهرا شباهنگ 1
لیلا نوری 1
عبدالرضا محمدی نافچی 2
1 گروه علوم و صنایع غذایی، دانشکده کشاورزی، واحد دامغان، دانشگاه آزاد اسلامی، دامغان، ایران
2 گروه علوم و صنایع غذایی، دانشکده تکنولوژی های صنعتی، دانشگاه علوم مالزی(USM)
10.52547/fsct.19.122.71
چکیده
امروزه، به علت افزایش نگرانی در مورد مواد زیست تخریب ناپذیر، مواد بسته بندی تجزیه پذیر بسیار مورد توجه قرار گرفته ­اند؛ لذا هدف از این پژوهش بررسی اثر رنگدانه بتانین در سطوح (5-5/2-0وزنی/ حجمی%) و نانو ذره اکسید مس در سطوح (4-2-0وزنی/حجمی%) در فیلم نانوکامپوزیت بر پایه وی پروتئین ایزوله/ پکتین در قالب طرح مرکب مرکزی بر خواص مکانیکی و ویژگی­های فیزیکوشیمیایی فیلم تولیدی می­باشد. نتایج حاصل نشان داد که با افزایش درصد رنگدانه بتانین و نانو ذره اکسید مس ضخامت و رطوبت نمونه­ ها افزایش و حلالیت کاهش یافت(P<0/05). همچنین با افزودن سطوح بالای رنگدانه بتانین قرمزی(a) افزایش و روشنایی(L) و زردی(b) نمونه­ها کاهش یافت. افزودن نانو ذره باعث کاهش شاخص b گردید در حالیکه بر شاخص a نمونه­ ها اثر معناداری نداشت. هم­چنین با افزودن رنگدانه و نانوذره مقاومت کششی و ازدیاد طول نمونه‌های فیلم به طور معناداری افزایش یافت(P<0/05). مطابق با تمامی نتایج حاصله استفاده از نانوذره اکسید مس و رنگدانه بتانین در فیلم نانوکامپوزیت منجربه تولید فیلمی مناسب برای بسته بندی مواد غذایی با خصوصیات فیزیکوشیمیایی و مکانیکی مطلوب می­باشد.
کلیدواژه‌ها
فیلم خوراکی
اکسید مس
رنگدانه بتانین
خواص مکانیکی

موضوعات

عنوان مقاله English

Investigation of physicochemical and mechanical properties of nanocomposite film based on whey protein isolated and pectin containing copper oxide nanoparticles and lip beet pigment (betanine)

نویسندگان English

zahra shabahang 1
Leila Nouri 1
Abdorreza Mohammadi Nafchi 2
1 Food Science and Technology Department, Islamic Azad University, Damghan Branch, Damghan, Iran
2 Green Biopolymer Coating and Packaging Centre, School of Industrial Technology, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
چکیده English

Today, biodegradable packaging materials have received a great deal of attention due to growing concerns about non-degradable materials; Therefore, the aim of this study was to investigate the effect of betanine pigment on surfaces (0, 2/5, 5 W/V%) and CuO nanoparticles on surfaces (0, 2, 4 W/V%) in nanocomposite film based on whey protein isolated / pectin in the form of a central composite design on the mechanical properties and physicochemical properties of the film is produced. The results showed that with increasing the percentage of betanine pigment and CuO nanoparticles, the thickness and moisture of the samples increased and the solubility decreased (P­<0.05). Also, by adding high levels of betanin pigment, redness (a) increased and brightness (L) and yellowing (b) of the samples decreased. Addition of nanoparticles decreased b value while it had no significant effect on a value of the samples. Also, by adding pigments and nanoparticles, tensile strength and elongation of film samples increased significantly (P <0.05). According to all the results, the use of CuO nanoparticles and betanine pigment in nanocomposite film leads to the production of a film suitable for food packaging with desirable physicochemical and mechanical properties.

کلیدواژه‌ها English

Edible film
CuO
Betanin pigment
Mechanical properties
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