خواص آنتی اکسیدانی میوه توت فرنگی (Fragaria vesca L) در دو مرحله تکوینی رسیده و نارس

Subject Areas : Journal of Medicinal Herbs, "J. Med Herb" (Formerly known as Journal of Herbal Drugs or J. Herb Drug)

گیتا امینی ¹ (گروه زیست شناسی گیاهی، دانشکده علوم زیستی، دانشگاه خوارزمی، تهران، ایران؛)
سعید ایریان ² (گروه زیست شناسی گیاهی، دانشکده علوم زیستی، دانشگاه خوارزمی، تهران، ایران؛)
احمد مجد ³ (گروه زیست شناسی گیاهی، دانشکده علوم زیستی، دانشگاه خوارزمی، تهران، ایران؛)
صدیقه مهربان ⁴ (گروه زیست شناسی گیاهی، دانشکده علوم زیستی، دانشگاه خوارزمی، تهران، ایران؛)

Received: 2012-10-11 Accepted : 2013-12-28 Published : 2013-07-01

Keywords: فنل کل, فعالیت آنتی اکسیدانی, Fragaria vesca L,

Abstract :

مقدمه و هدف: توت فرنگی (Fragaria vesca L.) گیاهی از خانواده گل سرخ (Rosaceae) است که خواص پزشکی دارد. از جمله می توان به خواص آنتی اکسیدانی آن اشاره کرد. پژوهش کنونی با هدف بررسی خواص آنتی اکسیدانی میوه توت فرنگی است. روش تحقیق: به منظور بررسی اثر آنتی اکسیدانی ، عصاره های میوه در دو مرحله تکوینی از رشد (رسیده و نارس) تهیه شد. به علاوه از 4 حلال مختلف استفاده شد که شامل اتانول 80%، متانول 80%، استون و آب مقطر بودند. در مجموع 8 عصاره گیاهی مختلف تهیه شد و خواص آنها با هم مقایسه شد. برای بررسی اثر آنتی اکسیدانی، از روش تعیین قدرت احیا کنندگی و فری سیانید پتاسیم استفاده شد. نتایج و بحث: نتایج نشان داد که میوه توت فرنگی در هر دو مرحله خواص آنتی اکسیدانی دارد  ولی خواص آنتی اکسیدانی در میوه رسیده  نسبت به میوه نارس بیشتر بود که به واسطه وجود ترکیبات فنولی و میزان رنگیزه های بالاتر در آن می باشد. توصیه کاربردی/ صنعتی: نتایج حاصل از این پژوهش نشان داد که خواص آنتی اکسیدانی میوه رسیده از نارس بیشتر می باشد.

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