تأثیر همزمان ترکیبات فنولیک پوست انار در‌هم‌تنیده شده در ساختار هیدروژل آلوئه‌ورا جهت گسترش ماندگاری جگر سیاه گوسفندی

نویسندگان
گروه علوم و صنایع غذایی، واحد رودهن، دانشگاه آزاد اسلامی، رودهن، ایران
چکیده
یکی از مهمترین چالش‌های مرتبط با فرآورده‌های گوشتی تازه (به‌ویژه جگر سیاه گوسفندی)، عمر نگهداری کوتاه محصول است. بدین منظور از ترکیبات نگهدارندۀ سنتزی برای گسترش ماندگاری آن‌ها استفاده می‌شود که اثرات جانبی متعددی بر سلامت انسان دارند. در این پژوهش تأثیر بکارگیری پوشش خوراکی حاوی ترکیبات فنولیک پوست انار در‌هم‌تنیده شده در ساختار هیدروژل آلوئه‌ورا جهت گسترش ماندگاری جگر سیاه گوسفندی مورد مطالعه قرار گرفت. خواص فیزیکوشیمیایی (pH، شاخص پراکسید، نیتروژن فرار کل، شاخص اسید تیوباربیتوریک و پارامترهای رنگی L*a*b*) و حسی (رایحه، رنگ، بافت و پذیرش کلی) فرآورده در روز‌های نگهداری 1، 3 و 7 روز و در درجه‌ حرارت نگهداری oC4+ ارزیابی گردید. نتایج نشان داد که کمترین میزان تشکیل مونوهیدروپراکسیدها در نمونه‌های آزمایشی پوشش‌دهی شده با ژل آلوئه‌ورا حاوی ترکیبات فنولیک پوست انار مشاهده شد که متناظر با کمترین میزان بازهای ازتۀ فرار بود. به‌طورکلی، با توجه به نتایج ارزیابی حسی و آزمون‌های کیفی صورت گرفته، بکارگیری پوشش خوراکی ژل آلوئه‌ورا حاوی ترکیبات زیست‌فعال پوست انار جهت گسترش ماندگاری جگر سیاه گوسفندی پیشنهاد می‌شود.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

The combined effect of pomegranate peel phenolic compounds cross-linked in the aloe vera hydrogel structure to extend the shelf-life of sheep liver

نویسندگان English

Mohsen Mokhtarian
Zahra Kavyanipour
Department of Food Science and Technology, Roudehen Branch, Islamic Azad University, Roudehen, Iran
چکیده English

One of the most important challenges related to fresh meat products (especially sheep liver) is the short shelf-life of the product. For this purpose, synthetic preservative compounds are used to extend their shelf life, which have many side effects on human health. In this research, the effect of using an edible coating containing phenolic compounds of pomegranate peel cross-linked in the structure of aloe vera hydrogel was studied to extend the shelf life of sheep liver. Physicochemical (pH, peroxide index, total volatile nitrogen, thiobarbituric acid index and color parameters L*a*b*) and sensory (aroma, color, texture and overall acceptability) properties of the product in storage days of 1, 3 and 7 days and in the storage temperature of +4oC was evaluated. The results indicated that, the lowest value of monohydroperoxide formation (i.e. peroxide index) was observed in test samples coated with aleo vera gel containing phenolic compound of pomegranate peel extract that corresponding to the lowest total volatile nitrogen. Generally, in accordance to the results of sensory evaluation and quality tests, using of aleo vera gel containing bioactive compounds of pomegranate peel extract is recommended for shelf life extending of sheep liver.

کلیدواژه‌ها English

Sheep liver
Peroxide value
Pomegranate peel (Punica granatum) &
Anti-oxidant compounds
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