![](/images/graphics-bg.png)
Chemical composition and antioxidant activity of the essential oil and flavonoids of phlomis floccosa D. don
Other Title(s)
التركيب الكيميائي و النشاط المضاد للأكسدة للزيت العطري و فلافونيدات نبات ضرس الشايب
Joint Authors
Lutfi, Rihab Ahmad
Abd al-Muti, Hibah Ibrahim
Source
Egyptian Journal of Desert Research
Issue
Vol. 65, Issue 1 (30 Jun. 2015), pp.125-135, 11 p.
Publisher
Publication Date
2015-06-30
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The present study aimed to investigate the antioxidant activities of essential oils and different extracts from Phlomis floccosa parts.
Where the essential oil was detected in the leaves of Phlomis floccosa only, while it was absent in stem and flower parts.
The hydro-distillation of the leaves of Phlomis floccosa yielded 0.18% of clear yellowish liquid oil and it didn´t has antioxidants activity.
On the other hand, the methanol extracts of different parts of the plant (stems, leaves and flowers) showed high free radical scavenging activity.
The DPPH radical scavenging activity of methanol extracts probably related to their flavonoids contents.
Hence, methanol extract was analyzed by using HPLC, which revealed that, the plant contained 21 flavonoid compounds in different plant parts (stems, leaves and flowers).
The major detected compound of flavonoids was luteolin-6- glucose -8- arabinose with percentages of 1234.3 mg/100 g, 1098.2 mg/100 g and 440.17 mg/100 g for stems, leaves and flowers of Phlomis floccosa, respectively.
The second major compound detected in stems and flowers was luteolin-6- arabinose -8- glucose (144.47 mg/100 g and 375.3 mg/100 g, respectively).
On the other hand, the second major compound detected in leaves was naringenin (278.13 mg/100 g).
According to the obtained results, the methanolic extract of Phlomis floccosa can be considered as an interesting source of natural antioxidant
American Psychological Association (APA)
Lutfi, Rihab Ahmad& Abd al-Muti, Hibah Ibrahim. 2015. Chemical composition and antioxidant activity of the essential oil and flavonoids of phlomis floccosa D. don. Egyptian Journal of Desert Research،Vol. 65, no. 1, pp.125-135.
https://search.emarefa.net/detail/BIM-812601
Modern Language Association (MLA)
Lutfi, Rihab Ahmad& Abd al-Muti, Hibah Ibrahim. Chemical composition and antioxidant activity of the essential oil and flavonoids of phlomis floccosa D. don. Egyptian Journal of Desert Research Vol. 65, no. 1 (2015), pp.125-135.
https://search.emarefa.net/detail/BIM-812601
American Medical Association (AMA)
Lutfi, Rihab Ahmad& Abd al-Muti, Hibah Ibrahim. Chemical composition and antioxidant activity of the essential oil and flavonoids of phlomis floccosa D. don. Egyptian Journal of Desert Research. 2015. Vol. 65, no. 1, pp.125-135.
https://search.emarefa.net/detail/BIM-812601
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 133-134
Record ID
BIM-812601