کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
685723 889049 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Antioxidant properties of methanol extract and its solvent fractions obtained from selected Indian red seaweeds
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Antioxidant properties of methanol extract and its solvent fractions obtained from selected Indian red seaweeds
چکیده انگلیسی

In vitro antioxidant activities of three selected Indian red seaweeds – viz., Euchema kappaphycus, Gracilaria edulis and Acanthophora spicifera were evaluated. Total phenolic content and reducing power of crude methanol extract were determined. The antioxidant activities of total methanol extract and five different solvent fractions (viz., petroleum ether (PE), ethyl acetate (EA), dichloromethane (DCM), butanol (BuOH) and aqueous) were also evaluated. EA fraction of A. spicifera exhibited higher total antioxidant activity (32.01 mg ascorbic acid equivalent/g extract) among all the fractions. Higher phenolic content (16.26 mg gallic acid equivalent/g extract) was noticed in PE fraction of G. edulis. Reducing power of crude methanol extract increased with increasing concentration of the extract. Reducing power and hydroxyl radical scavenging activity of E. kappaphycus were higher compared to standard antioxidant (α-tocopherol). The total phenol content of all the seaweeds was significantly different (P < 0.05). In vitro antioxidant activities of methanol extracts of all the three seaweeds exhibited dose dependency; and increased with increasing concentration of the extract.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 99, Issue 8, May 2008, Pages 2717–2723
نویسندگان
, , ,