کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1186760 963447 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Compositions, antioxidant and antimicrobial activities of Helichrysum (Asteraceae) species collected from Turkey
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Compositions, antioxidant and antimicrobial activities of Helichrysum (Asteraceae) species collected from Turkey
چکیده انگلیسی

The methanolic extracts of 16 Helichrysum species were investigated for their in vitro antioxidant, radical scavenging and antimicrobial activities. All the extracts showed strong antioxidant and radical scavenging activity. The highest total antioxidant capacity as ascorbic acid equivalents (AAE) of 194.64 mg/g dry extract was obtained for Helichrysum noeanum in the phosphomolybdenum assay. The highest IC50 value (7.95 μg/ml) was observed for the extract of Helichrysum stoechas subsp. barellieri in the DPPH assay. The total phenolic contents of the extracts ranged from 66.74 to 160.63 mg gallic acid equivalents (GAE)/g dry extract. The major component present in the extracts was identified as chlorogenic acid followed by apigenin-7-glucoside and apigenin by HPLC analysis. All the extracts showed significant antimicrobial activity against microorganisms containing 13 bacteria and two yeasts in the agar diffusion method.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 119, Issue 1, 1 March 2010, Pages 114–122
نویسندگان
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