بررسی رفتار رهایش ترکیبات زیست فعال از پودرهای درون پوشانی شده بر پایه آب انار با استفاده از مدل های تجربی

نویسندگان
1 گروه علوم و صنایع غذ ایی، دانشکد کشاورزی، دانشگاه آزاد اسلامی واحد علوم تحقیقات تهران، ایران
2 دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران
3 دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران، ایران
چکیده
بهینه سازی شرایط عملیاتی خشک کردن پاششی می تواند بستر مناسبی جهت تولید فرآورده هایی با کیفیت فیزیکی و شیمیایی ایده آل باشد. در این تحقیق تاثیر غلظت های متفاوت دیواره (مالتودکسترین) به هسته (عصاره آب انار) بر پاسخ های راندمان ریزدرون پوشانی، محتوی ترکیبات پلی فنلی، فعالیت آنتی اکسیدانی و ترکیبات آنتوسیانین با استفاده از روش آماری سطح پاسخ و طرح مرکب مرکزی بررسی شد. میزان بهینه سازی بر اساس بالاترین مقدار ترکیبات آنتوسیانین، پلی فنلی، فعالیت آنتی اکسیدانی و راندمان ریزدرون پوشانی انجام شد. معادله درجه دوم با ضریب همبستگی بالا (96/0) می تواند به خوبی شرط بهینه نسبت پوشش دیواره (مالتودکسترین) به هسته (عصاره آب انار) 7/5:5/18 را با مطلوبیت 70% جهت حصول بالاترین بازده خصوصیات فیزیکوشیمیایی را پیش بینی نماید. جهت مقایسه نتایج تجربی و مدل پیش بینی شده در قالب آزمون تی استیودنت، از نرم افزار آماری SPSS و طرح فاکتوریل در قالب بلوک کامل تصادفی در سطح احتمال 95% استفاده شد. تاثیر فرآیند ریزدرون پوشانی بر میزان رهایش ترکیبات زیست فعال طی 60 روز نگهداری در چهار تیمار شامل یخچال/ تاریکی، یخچال/ نور، محیط/ تاریکی و محیط/ نور مورد تجزیه و تحلیل قرار گرفت. نتایج آنالیز واریانس اختلاف معنی داری را بین تیمارها نشان داد و تیمار یخچال/ تاریکی بیشترین پایداری را نسبت به تیمارهای دیگر داشت . با استفاده از نرم افزار متلب، نتایج تجربی بدست آمده از آزمایش ها با مدل های تجربی بدست آمده از مقالات برازش شدند. مدل درجه اول به عنوان مدل برتر برای هر سه پاسخ ترکیبات پلی فنلی، فعالیت آنتی اکسیدانی و میزان ترکیبات آنتوسیانین انتخاب شد. در نهایت اینکه تولید پودرهای ریزدرون پوشانی شده عصاره آب انار تحت شرایط بهینه، می تواند جهت توسعه غنی سازی فرآورده های غذایی با پودرهای بدست آمده محسوب گردد.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Study of bioactive compounds release behavior from pomegranate juice-based microencapsulated powders using experimental models

نویسندگان English

Samira Amirsalmanipour 1
Shima Yousefi 2
Mohammadreza Hosseinpour 3
1 Islamic Azad University, Science and Research Branch, Tehran, Iran.
2 Islamic Azad University, Science and Research Branch, Tehran, Iran.
3 Islamic Azad University،Science and Research Branch, Tehran, Iran.
چکیده English

the spraying drying method is one of the most important ways to prevent the loss of strategic food products and increase their shelf life. Optimizing the operating conditions of this system can be a good platform for the production of products with ideal physicochemical quality. In this study, the effect of different wall concentrations (maltodextrin) on the core (pomegranate juice extract) on efficacy encapsulation, concentration of polyphenolic compounds (µg garlic acid /ml), antioxidants (%), anthocyanins (mg/ml), using the RSM and the central composite design were investigated. The optimization rate was based on the highest amount of anthocyanin, polyphenol, and antioxidant activity. Optimized conditions were: 5.70% for core compounds and 18.50% for maltodextrin as wall coatings with 70% permeability using SPSS statistical software (Version 16, USA) To compare the experimental results and the model in the form of t-student test and for the optimal experimental results, the factorial design in the form of a randomized complete block at the 95% probability level was used. The effect of microencapsulation process on the release rate of bioactive compounds during 60 days of storage was analyzed in 4 treatments: refrigerator-dark, refrigerator-light, medium-dark, environment-light. The results of the analysis of variance showed a significant difference between the 4 treatments (p <0.05) and the refrigerator-dark treatment had the highest stability compared to other treatments. MATLAB software was fitted for all three groups of antioxidants, polyphenols, anthocyanins, the First-order model was selected as the top model. Finally, under optimal conditions, the production of microdermabrasion powder can be considered to develop the enrichment of food products with the obtained powders

کلیدواژه‌ها English

Pomegranate
Microcapsulation
Release
Maltodextrin
Modeling
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