بررسی اثر اسانس گیاهان چویل، رزماری و اسطوخودوس بر پایداری حرارتی روغن کاملینا تحت شرایط تسریع شده

نویسندگان
1 گروه علوم و صنایع غذایی، واحد ورامین – پیشوا، دانشگاه آزاد اسلامی، ورامین، ایران
2 گروه محصولات غذایی و کشاورزی، پژوهشکده صنایع غذایی و فراورده های کشاورزی، انسیتوی پژوهشی استاندارد، کرج، ایران
3 اداره استاندارد
چکیده
امروزه به دلیل اثرات مطلوب آنتی­اکسیدان­های طبیعی از قبیل اسانس گیاهان مختلف و به تأخیر انداختن یا جلوگیری از اکسیداسیون موادغذایی بر پایه روغن یا چربی، به جای آنتی­اکسیدان­های سنتزی، مورد توجه زیادی قرار گرفته است. در این مطالعه اثر استفاده از اسانس گیاهان چویل، رزماری و اسطوخودوس استخراج شده به روش تقطیر با بخار آب (در سه سطح 100، 300 و 500 پی­پی­ام) بر پایداری حرارتی روغن کاملینای استخراج شده به روش پرس سرد، در شرایط تسریع شده (نگهداری روغن در دمای 65 درجه سانتیگراد به مدت 14 روز) در مقایسه با روغن کاملینای حاوی انتی اکسیدان سنتزی TBHQ مورد بررسی قرار گرفت. تجزیه و تحلیل داده‌ها توسط آزمون‌های آماری آنالیز واریانس یک‌طرفه (ANOVA) در نرم‌افزار SPSS25 و مقایسه میانگین‌ها با استفاده از آزمون چنددامنه‌ای دانکن انجام گرفت. نتایج نشان داد که نوع اسانس، زمان نگهداری و همچنین اثر متقابل آنها تأثیر معنی‌داری (01/0>p) بر عدد پراکسید، انیزیدین و توتوکس داشت بطوریکه با افزایش زمان نگهداری نمونه­ها عدد پراکسید، آنیزیدین و توتوکس افزایش معنی­داری (05/0>p) و با افزایش میزان غلظت اسانس­ها، کاهش معنی­داری (05/0>p) یافت. بعد از 14 روز نگهداری در شرایط تسریع شده، با توجه به نتایج مربوط به اکسایش کل (عدد توتوکس)، با استفاده از اسانس چویل و رزماری (در سطح 500 پی­پی­ام) میزان مقاومت اکسایشی روغن کاملینا نسبت به ­نمونه­های روغن کاملینای حاوی آنتی اکسیدان سنتزی TBHQ، افزایش یافت و ماندگاری و استفاده از روغن کاملینا جهت سرخ کردن، مناسب گردید.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Investigating the effect of essential oils of Ferulago contracta , Rosmarinus officinalis and Lavandula officinalis plants on the thermal stability of camellia oil under accelerated conditions

نویسندگان English

leila keivanfar 1
leila Nateghi 1
Ladan Rashidi 2
Rezvan Pourahmad 1
hamid Rashidi nodeh 3
1 گروه محصولات غذایی و کشاورزی، پژوهشکده صنایع غذایی و فراورده های کشاورزی، انسیتوی پژوهشی استاندارد، کرج، ایران
2 گروه محصولات غذایی و کشاورزی، پژوهشکده صنایع غذایی و فراورده های کشاورزی، انسیتوی پژوهشی استاندارد، کرج، ایران
3 اداره استاندارد
چکیده English

Nowadays, due to the favorable effects of natural antioxidants such as the essential oils of various plants and delaying or preventing the oxidation of food based on oil or fat, instead of synthetic antioxidants, it has received a lot of attention. In this study, the effect of using the essential oils of Ferulago contracta, Rosmarinus officinalis and Lavandula officinalis plants extracted by steam distillation (at three levels of 100, 300 and 500 ppm) on the thermal stability of camellia oil extracted by cold pressing method under accelerated conditions (maintenance of oil at 65°C for 14 days) was investigated in comparison with camellia oil containing synthetic antioxidant TBHQ. Data analysis was done by one-way analysis of variance (ANOVA) in SPSS25 software and comparing means using Duncan's multiple range test. The results showed that the type of essential oil, storage time and also their interaction had a significant effect (p<0.01) on the peroxide, anisidine and TOTOX value, so that with the increase in the storage time of the samples, the peroxide, anisidine and TOTOX value increased significantly (p<0.05) and with increasing the concentration of essential oils, it decreased significantly (p<0.05). After 14 days of storage in accelerated conditions, according to the results related to the total oxidation (TOTOX value), using the essential oil of Ferulago contracta and Rosmarinus officinalis (at the level of 500 ppm), the oxidation resistance of camellia oil compared to camellia oil samples containing the synthetic antioxidant TBHQ, it increased and the shelf life and use of camelina oil for frying became suitable.


کلیدواژه‌ها English

Essential oil
Ferulago contracta
Rosmarinus officinalis
Lavandula officinalis
Camelina sativa oil
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