Antioxidant properties of Helichrysum pseudoplicatum Nab
The genus Helichrysum (Asteraceae) is comprised of approximately 500-600 species and used for the treatment of a variety of pathological conditions in folk medicine in many countries. In this study, antioxidant activities of aerial parts of H. pseudoplicatum were investigated employing various in vi...
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| Format: | Article |
| Language: | English |
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Mazandaran University of Medical Sciences
2015-01-01
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| Series: | Pharmaceutical and Biomedical Research |
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| Online Access: | http://pbr.mazums.ac.ir/browse.php?a_code=A-10-26-5&slc_lang=en&sid=1 |
| _version_ | 1828345667881271296 |
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| author | Mohammad Ali Ebrahimzadeh Afsaneh Tavassoli |
| author_facet | Mohammad Ali Ebrahimzadeh Afsaneh Tavassoli |
| author_sort | Mohammad Ali Ebrahimzadeh |
| collection | DOAJ |
| description | The genus Helichrysum (Asteraceae) is comprised of approximately 500-600 species and used for the treatment of a variety of pathological conditions in folk medicine in many countries. In this study, antioxidant activities of aerial parts of H. pseudoplicatum were investigated employing various in vitro assay systems, i.e. 2,2-diphenyl-1-picrylhydrazyl (DPPH) and nitric oxide radical scavenging, reducing power and hydrogen peroxide scavenging. IC50 for DPPH radical-scavenging activity was 438.9 ± 15.6 µg/ml. The extract exhibited good reducing power at 25 - 400 µg/ml but was not comparable with that of vitamin C. The extract showed good nitric oxide-scavenging activity. IC50 was 474.3 ± 11.8 µg/ml. It was capable of scavenging hydrogen peroxide in a concentration dependent manner. It showed good activity. Its IC50 was 159.8 ± 8.2 µg/ml. The IC50 values for ascorbic acid and BHA were 21.4 and 52.0 µg/ml, respectively. The total amount of phenolic compounds in the extract was determined as gallic acid equivalents (22.7 ± 3.1 mg/g of extract) and total flavonoid contents were calculated as quercetin equivalents (9.6 ± 1.3 mg/g of extract) from a calibration curve. This plant contained low amount of total flavonoids and phenolic compounds. Its moderate antioxidant activities may be attributed to its low levels of phenols and flavonoids. |
| first_indexed | 2024-04-14T00:15:39Z |
| format | Article |
| id | doaj.art-f44de78806394bb2a80b142c4361e5ba |
| institution | Directory Open Access Journal |
| issn | 2423-4486 2423-4494 |
| language | English |
| last_indexed | 2024-04-14T00:15:39Z |
| publishDate | 2015-01-01 |
| publisher | Mazandaran University of Medical Sciences |
| record_format | Article |
| series | Pharmaceutical and Biomedical Research |
| spelling | doaj.art-f44de78806394bb2a80b142c4361e5ba2022-12-22T02:23:09ZengMazandaran University of Medical SciencesPharmaceutical and Biomedical Research2423-44862423-44942015-01-01113743Antioxidant properties of Helichrysum pseudoplicatum NabMohammad Ali Ebrahimzadeh0Afsaneh Tavassoli1 Pharmaceutical Sciences Research Center, School of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran. Research Center of Natural Resources of Mazandaran, Sari, Iran. The genus Helichrysum (Asteraceae) is comprised of approximately 500-600 species and used for the treatment of a variety of pathological conditions in folk medicine in many countries. In this study, antioxidant activities of aerial parts of H. pseudoplicatum were investigated employing various in vitro assay systems, i.e. 2,2-diphenyl-1-picrylhydrazyl (DPPH) and nitric oxide radical scavenging, reducing power and hydrogen peroxide scavenging. IC50 for DPPH radical-scavenging activity was 438.9 ± 15.6 µg/ml. The extract exhibited good reducing power at 25 - 400 µg/ml but was not comparable with that of vitamin C. The extract showed good nitric oxide-scavenging activity. IC50 was 474.3 ± 11.8 µg/ml. It was capable of scavenging hydrogen peroxide in a concentration dependent manner. It showed good activity. Its IC50 was 159.8 ± 8.2 µg/ml. The IC50 values for ascorbic acid and BHA were 21.4 and 52.0 µg/ml, respectively. The total amount of phenolic compounds in the extract was determined as gallic acid equivalents (22.7 ± 3.1 mg/g of extract) and total flavonoid contents were calculated as quercetin equivalents (9.6 ± 1.3 mg/g of extract) from a calibration curve. This plant contained low amount of total flavonoids and phenolic compounds. Its moderate antioxidant activities may be attributed to its low levels of phenols and flavonoids.http://pbr.mazums.ac.ir/browse.php?a_code=A-10-26-5&slc_lang=en&sid=1Antioxidant activity Helichrysum pseudoplicatum Radical scavenging Reducing power |
| spellingShingle | Mohammad Ali Ebrahimzadeh Afsaneh Tavassoli Antioxidant properties of Helichrysum pseudoplicatum Nab Pharmaceutical and Biomedical Research Antioxidant activity Helichrysum pseudoplicatum Radical scavenging Reducing power |
| title | Antioxidant properties of Helichrysum pseudoplicatum Nab |
| title_full | Antioxidant properties of Helichrysum pseudoplicatum Nab |
| title_fullStr | Antioxidant properties of Helichrysum pseudoplicatum Nab |
| title_full_unstemmed | Antioxidant properties of Helichrysum pseudoplicatum Nab |
| title_short | Antioxidant properties of Helichrysum pseudoplicatum Nab |
| title_sort | antioxidant properties of helichrysum pseudoplicatum nab |
| topic | Antioxidant activity Helichrysum pseudoplicatum Radical scavenging Reducing power |
| url | http://pbr.mazums.ac.ir/browse.php?a_code=A-10-26-5&slc_lang=en&sid=1 |
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