پایداری اکسیداتیو روغن آفتابگردان غنی شده با فلاونوئیدهای مرکبات استخراج شده با استفاده از نانولوله های کربنی چند جداره در طی سرخ کردن

نویسندگان
حسن قلی زاده 1
حسن طاهرمنصوری 2
ویتو میشل پارادیسو 3
1 گروه علوم و صنایع غذایی، واحد آیت الله آملی، دانشگاه آزاد اسلامی، آمل، مازندران، ایران
2 گروه شیمی، واحد آیت الله آملی، دانشگاه آزاد اسلامی، آمل، مازندران، ایران
3 گروه علوم و فنون زیستی و زیست محیطی، دانشگاه سالنتو، لچه، ایتالیا
10.22034/FSCT.21.152.194
چکیده
هدف از این مطالعه مقایسه کارایی ترکیبات فنلی پوست مرکبات استخراج شده با استفاده از نانولوله های کربنی چند جداره کربوکسیله (MWCNT-COOH) با آنتی اکسیدان های مصنوعی رایج [بوتیل هیدروکسی آنیزول (BHA) و بوتیل هیدروکسی تولوئن (BHT)] در تثبیت روغن آفتابگردان (SO) بود. در طول سرخ کردن (5±180 درجه سانتیگراد، 24 ساعت). برای ارزیابی فعالیت آنتی اکسیدانی این ترکیبات، محتویات کل فنول و فلاونوئید، قدرت کاهش، فعالیت مهار ABTS، توانایی تثبت بتاکاروتن، و فعالیت مهار رادیکال 1، 1-دی فنیل-2-پیکریل هیدرازیل (DPPH) اندازه گیری شد. عصاره ها در غلظت های مختلف (100-1000 پی پی ام) با SO ترکیب شدند و هر دو آنتی اکسیدان مصنوعی در 200 پی پی ام استاندارد شدند. پایداری حرارتی-اکسیداتیو با ارزیابی تغییر در مقدار پراکسید (PV)، رنگ، محتوای اسید چرب آزاد (FFA)، مقدار داین کونژوگه (CDV)، و اسید تیوباربیتوریک (TBA) مورد بررسی قرار گرفت. عصاره پوست پرتقال تلخ (BPE) محتوای بیشتری از ترکیبات فنلی و فعالیت آنتی اکسیدانی را نشان داد. در 1000 ppm، محتوای FFA، PV، TBA و CDV کمتری را نشان داد. می توان از آن به عنوان جایگزینی برای آنتی اکسیدان های مصنوعی استفاده کرد. در نتیجه، ترکیبات فنلی پوست مرکبات استخراج شده با MWCNT-COOH می توانند به عنوان نگهدارنده در روغن های سرخ کردنی استفاده شوند.
کلیدواژه‌ها
نانولوله های کربنی چند جداره کربوکسیله
فلاونوئیدها
خواص آنتی اکسیدانی
پایداری حرارتی
روغن آفتابگردان

موضوعات

عنوان مقاله English

Oxidative stability of sunflower oil enriched with citrus flavonoids extracted using MWCNT-COOH during frying

نویسندگان English

hassan gholizadeh 1
Hasan Tahermansouri 2
Vito Michele Paradiso 3
1 Department of Food Science and Technology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Mazandaran, Iran.
2 Department of Chemistry, Ayatollah Amoli Branch, Islamic Azad University, Amol, Mazandaran, Iran.
3 Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy.
چکیده English

The purpose of this study was to compare the efficacy of citrus peel phenolic compounds extracted using carboxylated multi-walled carbon nanotubes (MWCNT–COOH) with common synthetic antioxidants [butylhydroxyanisole (BHA) and butylhydroxytoluene (BHT)] in stabilizing sunflower oil (SO) during frying (180 ± 5 °C, 24 h). To evaluate the antioxidant activity of these compounds, total phenolic, and flavonoid contents, reducing power, ABTS scavenging activity, β-carotene bleaching ability, and 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity were measured. Extracts were combined at various concentrations (100-1000 ppm) with SO, and both synthetic antioxidants were standardized at 200 ppm. Thermal-oxidative stability was investigated by assessing the change in peroxide value (PV), color, free fatty acid (FFA) content, conjugated diene value (CDV), and thiobarbituric acid (TBA). Bitter orange peel extract (BPE) displayed a higher content of phenolic compounds and antioxidant activity. At 1000 ppm, it showed a lower FFA content, PV, TBA, and CDV. It can be used as an alternative to synthetic antioxidants. As a result, citrus peel phenolic compounds extracted with MWCNT–COOH can be used as preservatives in frying oils.

کلیدواژه‌ها English

MWCNT-COOH
flavonoids
Antioxidant properties
Thermal stability
Sunflower oil
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