بررسی خصوصیات ضد میکروبی، آنتی اکسیدانی و فیزیکوشیمیایی فیلم فعال بر پایه پروتئین آب پنیر حاوی آنتوسیانین انار و انگور قرمز و نانو ذرات اکسید روی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 Urmia University

2 گروه بهداشت و صنایع غذایی، دانشکده پیرادامپزشکی، دانشگاه ایلام

چکیده

بسته های فعال ضد میکروب نانو کامپوزیت های فلزی نسل جدیدی از بسته ها با ساختار نانو هستند که از ترکیب مستقیم نانوذرات فلزی با بسپار زمینه ای تولید می شوند. این تحقیق با هدف بررسی ویژگی های فیزیکوشیمیایی، آنتی اکسیدانی و ضد میکروبی فیلم هوشمند کنسانتره پروتئین آب پنیر حاوی آنتوسیانین انار و انگور قرمزو نانو ذرات اکسید روی انجام شده است. نفوذپذیری نسبت به بخار آب، خواص آنتی اکسیدانی، خواص ضد میکروبی به روش انتشار دیسک و آزمون گرماسنج روبش افتراقی بر روی فیلم های تهیه شده انجام شده است. برای تعیین اثرات ضد میکروبی فیلم از روش انتشار آگار استفاده شد. با افزایش درصد نانوذرات اکسید روی و آنتوسیانین به فیلم بر درصد مواد جامد فیلم افزوده شد. فعالیت آنتی اکسیدانی فیلم های فعال به طور قابل توجهی با افزایش محتوای آنتوسیانین فیلم ها افزایش یافت. بیشترین فعالیت آنتی اکسیدانی با اختلاف معنی داری (٠/٠٥>p) به نمونه فیلم با عصاره 6/2 میلی لیتر نسبت داده شد. با توجه به داده های بدست آمده از آزمون DSC، با افزودن آنتوسیانین ها، دمای ۲۹۰ و انتقال شیشه ای تا حدودی کاهش داده است. به طور کلی، این مطالعه نشان داد که آنتوسیانین ها و نانوذرات کسید روی پتانسیل استفاده برای تهیه فیلم های بر پایه کنسانتره آب پنیر فعال زیستی با خواص فیزیکوشیمیایی بهبود و خواص بیولوژیکی مانند خاصیت آنتی اکسیدانی را در صورت استفاده در غلظت های مناسب دارند.

چکیده تصویری

بررسی خصوصیات ضد میکروبی، آنتی اکسیدانی و فیزیکوشیمیایی فیلم فعال بر پایه پروتئین آب پنیر حاوی آنتوسیانین انار و انگور قرمز و نانو ذرات اکسید روی

تازه های تحقیق

  • با افزایش محتوای آنتوسیانین فیلم ها، فعالیت آنتی اکسیدانی فیلم های فعال به طور قابل توجهی افزایش یافت.
  • با توجه به داده های بدست آمده از آزمون DSC، با افزودن آنتوسیانین ها، دمای انتقال شیشه ای تا حدودی کاهش پیدا کرده است.
  • فیلم تولیدی بر پایه کنسانتره آب پنیر به علت ماهیت آبدوستی می تواند بعنوان پوشش برای فرآورده های لبنی به همراه آنتی اکسیدان های طبیعی به کار رود.
  • نتایج نشان داد که نمونه شاهد مقاومت کمی در برابر این دو باکتری بیماری زا داشت، در حالی که فیلم های حاوی آنتوسیانین و نانوذرات اکسید روی دارای خواص ضد میکروبی بود.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Investigation of antimicrobial, antioxidant and physicochemical properties of active film based on whey protein containing pomegranate and red grape anthocyanins and zinc oxide nanoparticles

نویسندگان [English]

  • Ebrahim Taghizadeh 1
  • Mohammad Alizadeh 1
  • Hamed Hassanzadeh 2
1 Urmia University
2 Department of food science and hygiene, Faculty of Para-veterinary, Ilam University
چکیده [English]

Introductio: Active anti-microbial packages, metal nanocomposites are a new generation of packages with nano structure, which are produced by direct combination of metal nanoparticles with base resin. This research was conducted with the aim of investigating the physicochemical, antioxidant and antimicrobial properties of whey protein concentrate smart film containing pomegranate and red grape anthocyanins and zinc oxide nanoparticles. Materials and methods: permeability to water vapor, antioxidant properties, antimicrobial properties by disk diffusion method and differential scanning calorimeter test were performed on the prepared films. Agar diffusion method was used to determine the antimicrobial effects of the film. Results and Discussion: By increasing the percentage of zinc oxide nanoparticles and anthocyanin in the film, the percentage of solids in the film increased. The antioxidant activity of active films increased significantly with the increase of anthocyanin content of the films. The highest antioxidant activity with a significant difference (p<0.05) was attributed to the film sample with 2.6 cc extract. According to the data obtained from the DSC test, with the addition of anthocyanins, the temperature of 290 and the glass transition have changed to some extent, and on the other hand, it can be concluded that the addition of nanoparticles to the film can reduce the glass transition temperature. Conclusion: In general, this study showed that anthocyanins and zinc oxide nanoparticles have the potential to be used to prepare films based on bioactive whey concentrate with improved physicochemical properties and biological properties such as antioxidant properties when used in appropriate concentrations.

کلیدواژه‌ها [English]

  • Edible film
  • Whey protein
  • Anthocyanin
  • Nanoparticles
  • Antioxidant property
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