ارزیابی خواص کیفی ریزپوشینه‌های تفاله انگور و روغن بزرک پایدار شده با نسبت‌های مختلف مالتودکسترین و صمغ کتیرا

نویسندگان
مناف صابری
سولماز صارم نژاد
مصطفی سلطانی
علیرضا فرجی
دانشگاه علوم پزشکی آزاد اسلامی تهران
10.22034/FSCT.20.139.201
چکیده
ریزپوشانی فرایندی جهت محافظت از ترکیبات زیست فعال در برابر شرایط نامساعد محیطی به منظور افزایش پایداری و دسترسی زیستی آن­ها می باشد. با توجه به حضور ترکیبات زیست فعال در تفاله انگور و روغن بزرک، هدف از این پژوهش درون پوشانی روغن بزرک و تفاله انگور سیاه سردشت با نسبت­های مختلف مالتودکسترین و صمغ کتیرا (1:1، 2:1 و 1:2) با استفاده از خشک­کن پاششی و بررسی ویژگی­های کیفی ریزپوشینه­های تولید شده بود. بر این اساس، ریزپوشینه­های تولیدی از لحاظ بازده ریزپوشینه، میزان حلالیت و رطوبت، محتوای ترکیبات فنولی، فعالیت آنتی اکسیدانی، برهم کنش مواد دیواره و هسته و ریزساختار مورد ارزیابی قرار گرفتند. مطابق با نتایج، از لحاظ محتوای رطوبت و میزان حلالیت تفاوت معنی­داری بین ریزپوشینه­ها وجود نداشت. بالاترین بازده ریزپوشانی، بیشترین محتوای ترکیبات فنولی کل و بیشترین ظرفیت مهار رادیکال DPPH در ریزپوشینه­­ی دارای نسبت 1:1 مالتودکسترین و صمغ کتیرا مشاهده شد. در حالیکه شکل کروی ریزپوشینه­ها برای تمامی نمونه­ها به وسیله میکروسکوپ الکترونی روبشی مشاهده شد، ریزپوشینه های دارای دیواره مالتودکسترین و صمغ کتیرا با نسبت 1:1 ساختار فشرده­تر و یکنواخت­تری داشتند. آنالیز FT-IR نیز شکل­گیری برهمکنش­های جدید بین مواد دیواره و هسته ریزپوشینه­ها را تایید کرد. نتایج این پژوهش نشان داد که استفاده از مالتودکسترین و صمغ کتیرا به عنوان ماده دیواره با نسبت 1:1، کارآیی مناسبی جهت ریزپوشانی تفاله انگور و روغن بزرک دارد.
کلیدواژه‌ها
ریزپوشانی
تفاله انگور
روغن بزرک
مالتودکسترین
صمغ کتیرا

موضوعات

عنوان مقاله English

Evaluation of the quality properties of grape pomace and flaxseed oil microcapsules stabilized with different ratios of maltodextrin and gum tragacanth

نویسندگان English

Manaf Saberi
Solmaz Saremnezhad
Mostafa Soltani
Alireza Faraji
Tehran Medical Sciences, Islamic Azad University
چکیده English

Encapsulation is a process to protect bioactive compounds against unfavorable environmental conditions in order to increase their stability and bioavailability. Regarding the existence of bioactive compounds in grape pomace and flaxseed oil, the aim of this research was to encapsulation of grape pomace (Vitis viniferae cv. Rash (and flaxseed oil with different ratios of maltodextrin and gum tragacanth (1:1, 1:2, 2:1) using a spray drier and evaluation of the quality properties of obtained microcapsules. The produced microcapsules were analyzed in terms of microcapsulation yield, solubility and humidity contents, total phenolic contents, antioxidant activity, the interaction between wall and core materials and microstructure. According to the results, there were no significant differences between the microcapsules in terms of humidity and solubility contents (P<0.05). The highest microencapsulation yield, total phenolic contents and antioxidant activity were observed in the microcapsules produced with equal ratios (1:1) of maltodextrin and gum tragacanth. While the spherical shape was observed by scanning electron microscope for all of microcapsule samples, the microcapsules produced with equal ratios (1:1) of maltodextrin and gum tragacanth had a more compact and homogeneous structure. FT-IR analysis also confirmed the creation of new interactions between the wall and core materials of the obtained microcapsules. The results of the present research showed that using maltodextrin and gum tragacanth as wall material in an equal ratio (1:1) had a proper performance in order to microencapsulation of grape pomace and flaxseed oil.

کلیدواژه‌ها English

Microcapsulation
Grape pomace
Flaxseed oil
Maltodextrin
Gum tragacanth
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