با همکاری انجمن علوم و صنایع غذایی ایران

نوع مقاله : مقاله پژوهشی لاتین

نویسندگان

1 Ferdowsi University of Mashhad

2 دانشگاه شیراز

3 دانشگاه فردوسی مشهد

چکیده

به‌دلیل طولانی بودن زمان استخراج روش‌های سنتی ازجمله تقطیر با آب (HD) و تقطیر با بخار آب (SD)، اخیراً روش‌های جدیدی مانند تقطیر با آب در حضور امواج مایکرو (MAHD) و تقطیر مقاومتی (OAHD) معرفی شده‌اند. در پژوهش حاضر، روغن‌های اسانسی نعناع فلفلی (Menthapiperita) به‌روش‌های OAHD و MAHD استخراج و فعالیت آنتی‌اکسیدانی آن‌ها با روغن‌های اسانسی حاصل از روش‌های SD و HD مقایسه شد. نتایج حاکی از آن بود که روش‌های OAHD و MAHD سبب کاهش زمان استخراج (تا 72 درصد) و نیز انرژی الکتریکی لازم می‌شوند. علاوه‌بر‌این، تمام روغن‌های اسانسی استخراج‌شده دارای خواص فیزیکی (دانسیته نسبی و رنگ) و فعالیت آنتی‌اکسیدانی (روش‌های DPPH و رنگبری بتا-کاروتن) تقریباً یکسانی بودند. یافته‌های این تحقیق نشان داد روغن اسانسی نعناع فلفلی حاصل از روش‌های OAHD و MAHD را می‌توان به‌عنوان فراورده‌ای آنتی‌اکسیدانی در مواد غذایی و دارویی مورداستفاده قرار داد.

کلیدواژه‌ها

عنوان مقاله [English]

Evaluation of antioxidant activities of Mentha piperita essential oils obtained by different extraction methods

نویسندگان [English]

  • Mohsen Gavahian 1
  • Reza Farhoosh 1
  • Asgar Farahnaki 2
  • Katayoun Javidnia 2
  • Fakhri Shahidi 3

1 Ferdowsi University of Mashhad

2 Shiraz University

3 Ferdowsi University of Mashhad (FUM)

چکیده [English]

As traditional extraction methods like Hydrodistillation (HD) and steamdistillation (SD) have long extraction times, some novel extraction methods like microwave-assisted hydrodistillation (MAHD) and ohmic-assisted hydrodistillation (OAHD) are recently introduced. In this study, essential oils of Mentha piperita were extracted by OAHD and MAHD and the results were compared with those of the SD and HD to clarify if these novel procedures have significant effect on antioxidant activities of extracted essential oils. The results showed that OAHD and MAHD are able to reduce extraction time (up to 72%) and also required electrical energy. Furthermore, all extracted essential oils were shown to have approximately same physical properties (relative density and visual color) and antioxidant activity using DPPH and β-carotene bleaching methods. The findings of this study revealed the applicability of using mint essential oil obtained by MAHD and OAHD as a natural antioxidant in food and pharmaceutical products.

کلیدواژه‌ها [English]

  • Essential oils
  • Hydrodistillaion
  • Mentha piperita
  • Microwave-assisted hydrodistillation
  • Ohmic-assisted hydrodistillation
  • Steamdistillation
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