اثر اسانس‌های پونه، آویشن و رزماری در مقایسه با ترشیو بوتیل هیدروکینون بر ویژگی های کیفی روغن سیاه دانه در طی نگهداری

نویسندگان
1 دانشجوی دکتری، گروه علوم و صنایع غذایی، دانشگاه آزاد اسلامی، واحد تبریز، تبریز، ایران
2 استاد، گروه علوم و صنایع غذایی، دانشکده کشاورزی، دانشگاه تبریز، تبریز، ایران
3 گروه علوم و صنایع غذایی، دانشگاه آزاد اسلامی، واحد تبریز، تبریز، ایران
4 دانشیار، گروه علوم و صنایع غذایی، دانشکده تغذیه و علوم غذایی، دانشگاه علوم پزشکی و خدمات بهداشتی - درمانی تبریز،تبریز، ایران
چکیده
علیرغم اینکه آنتی اکسیدان‌های سنتزی در پایداری روغن‌ها در مقابل اکسیداسیون موثر عمل می­کنند، اما اثرات منفی آنها بر سلامت مصرف کنندگان مورد بحث و استفاده از آنها در حال محدود شدن است. بنابراین، استفاده از آنتی‌­اکسیدان‌های طبیعی همچون اسانس برخی از گیاهان رو به افزایش است. در این پژوهش، اثر سه نوع اسانس گیاهی پونه، آویشن و رزماری به عنوان آنتی اکسیدان طبیعی در غلظت­های 250، 500، 750 و ppm1000 و آنتی اکسیدان سنتزی هیدروکینون ترشیو بوتیل (TBHQ) در غلظت ppm 100 بر ویژگی­های کیفی روغن سیاه­دانه (شاخص OSI، عدد پروکسید، عدد اسیدی و مقدار تیموکینون) در روزهای تولید، 30، 60 و 90 بررسی شد. نتایج نشان داد که بیشترین و کمترین عدد پروکسید به ترتیب مربوط به روغن بدون آنتی­اکسیدان ( meqO2/kg oil13/61) و روغن حاوی ppm750 اسانس رزماری (meqO2/kg oil 7/7) بود. همچنین نتایج نشان داد که نمونه­های روغن از لحاظ اسیدیته تفاوت معنی داری (05/0>p) با هم نداشتند. تیموکینون بعنوان ماده موثره روغن سیاه­دانه در روغن­های حاوی اسانس گیاهی بهتر حفظ شد، بصورتی که بیشترین و کمترین مقدار به ترتیب مربوط به روغن حاوی ppm 500 اسانس رزماری (ppm 1684) و روغن بدون آنتی­اکسیدان (ppm 1230) بود. در کل نتایج نشان داد که می­توان برای پایدارسازی روغن سیاه­دانه و حفظ ویژگی­های آن از بین اسانس­ها، اسانس رزماری بهترین کارایی را داشت و در غلظت ppm 750 می­توان به جای TBHQ استفاده کرد.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Effect of Oregano, Thyme and Rosemary essential oils in comparison with tert-butyl hydroquinone on the quality characteristics of Nigella Sativa seed oil during storage

نویسندگان English

Roghayeh Soltani 1
Sodeif Azadmard Damirchi 2
Mehdi Gharakhani 3
Mohammadali Torbati 4
1 Ph.D Student, Department of Food Science and Technology, Islamic Azad University, Tabriz Branch, Tabriz, Iran.
2 Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
3 Department of Food Science and Technology, Islamic Azad University, Tabriz Branch, Tabriz, Iran
4 Department of Food Science and Technology, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences
چکیده English

Although synthetic antioxidants are effective in stabilizing oils against oxidation, because of their negative effects on the health of consumers, their use are being limited. Therefore, the use of natural antioxidants such as essential oils of some plants is increasing. In this study, the effect of three types of essential oils of oregano, thyme and rosemary as natural antioxidants at concentrations of 0 (control sample) 250, 500, 750 and 1000 ppm and synthetic antioxidant hydroquinone tertiary butyl (TBHQ) at a concentration of 100 ppm on the oil quality characteristics of Nigella Sative seed oil (OSI index, peroxide value, acidity and thymoquinone content) were evaluated on the extraction days, 30, 60 and 90 days of storage. The results showed that the highest and lowest peroxide values ​​were related to antioxidant-free oil (61.13 meqO2/kg oil) and oil containing 750 ppm rosemary essential oil (7.7 meqO2 / kg oil), respectively. The results also showed that the oil samples did not differ significantly in terms of acidity (p <0.05). Thymoquinone as the active ingredient of the oil was better preserved in oils containing essential oils, so that the highest and lowest values ​​were related to oils containing 750 ppm rosemary essential oil (1684 ppm) and oil without antioxidants (1230 ppm), respectively. In general, the results showed that rosemary essential oil at a concentration of 750 ppm instead of TBHQ can be used to stabilize black seed oil and maintain its properties.

کلیدواژه‌ها English

Natural antioxidant
Essential oil
Thermal stability
Nigella sativa
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