Antioxidant and antimicrobial attributes and phenolics of different solvent extracts from leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer ex Hook.) Raf.]
This paper describes the antioxidant and antimicrobial activities and phenolic components of different solvent (absolute methanol, absolute ethanol, absolute acetone, 80% methanol, 80% ethanol, 80% acetone and deionized water) extracts of leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer...
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| Format: | Article |
| Language: | English |
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MDPI
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/77964/ http://psasir.upm.edu.my/id/eprint/77964/1/77964.pdf |
| _version_ | 1848858375022968832 |
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| author | Shabir, Ghulam Anwar, Farooq Sultana, Bushra Khalid, Zafar M. Afzal, Muhammad Khan, Qaiser M. Ashrafuzzaman, Muhammad |
| author_facet | Shabir, Ghulam Anwar, Farooq Sultana, Bushra Khalid, Zafar M. Afzal, Muhammad Khan, Qaiser M. Ashrafuzzaman, Muhammad |
| author_sort | Shabir, Ghulam |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This paper describes the antioxidant and antimicrobial activities and phenolic components of different solvent (absolute methanol, absolute ethanol, absolute acetone, 80% methanol, 80% ethanol, 80% acetone and deionized water) extracts of leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer ex Hook.) Raf.]. The extract yields from leaves, flowers and bark ranged from 10.19 to 36.24, 12.97 to 48.47 and 4.22 to 8.48 g/100 g dry weight (DW), respectively. Overall, 80% methanol extract produced from the leaves exhibited significantly (P < 0.05) higher antioxidant activity, with high phenolic contents (3.63 g GAE/100 g DW), total flavonoid contents (1.19 g CE/100 g DW), inhibition of peroxidation (85.54%), DPPH scavenging capacity (IC50 value 8.89 μg/mL) and reducing power (1.87). Similarly, this 80% methanol leaves extract also showed superior antimicrobial activity. HPLC analysis of the 80% methanol extracts for individual phenolics revealed the presence of gallic, protocatechuic and salicylic acid in leaves; gallic, protocatechuic, salicylic, trans-cinnamic and chlorogenic acid in flowers, and gallic acid in bark as the main (amount > 1.50 mg/100 g DW) phenolic acids. Besides, small amounts ( < 1.50 mg/100 g DW) of some other phenolic acids such as sorbic, sinapic, p-coumaric, m-coumaric, ferulic, caffeic, 3-hydroxybenzoic, 4-hydroxycinnamic and 4-hydroxybenzoic acids were also detected. The extracts of the tested parts of Gold Mohar, especially, the leaves, might be valuable for functional food and therapeutic applications. |
| first_indexed | 2025-11-15T12:12:26Z |
| format | Article |
| id | upm-77964 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:12:26Z |
| publishDate | 2011 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-779642020-06-01T03:12:17Z http://psasir.upm.edu.my/id/eprint/77964/ Antioxidant and antimicrobial attributes and phenolics of different solvent extracts from leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer ex Hook.) Raf.] Shabir, Ghulam Anwar, Farooq Sultana, Bushra Khalid, Zafar M. Afzal, Muhammad Khan, Qaiser M. Ashrafuzzaman, Muhammad This paper describes the antioxidant and antimicrobial activities and phenolic components of different solvent (absolute methanol, absolute ethanol, absolute acetone, 80% methanol, 80% ethanol, 80% acetone and deionized water) extracts of leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer ex Hook.) Raf.]. The extract yields from leaves, flowers and bark ranged from 10.19 to 36.24, 12.97 to 48.47 and 4.22 to 8.48 g/100 g dry weight (DW), respectively. Overall, 80% methanol extract produced from the leaves exhibited significantly (P < 0.05) higher antioxidant activity, with high phenolic contents (3.63 g GAE/100 g DW), total flavonoid contents (1.19 g CE/100 g DW), inhibition of peroxidation (85.54%), DPPH scavenging capacity (IC50 value 8.89 μg/mL) and reducing power (1.87). Similarly, this 80% methanol leaves extract also showed superior antimicrobial activity. HPLC analysis of the 80% methanol extracts for individual phenolics revealed the presence of gallic, protocatechuic and salicylic acid in leaves; gallic, protocatechuic, salicylic, trans-cinnamic and chlorogenic acid in flowers, and gallic acid in bark as the main (amount > 1.50 mg/100 g DW) phenolic acids. Besides, small amounts ( < 1.50 mg/100 g DW) of some other phenolic acids such as sorbic, sinapic, p-coumaric, m-coumaric, ferulic, caffeic, 3-hydroxybenzoic, 4-hydroxycinnamic and 4-hydroxybenzoic acids were also detected. The extracts of the tested parts of Gold Mohar, especially, the leaves, might be valuable for functional food and therapeutic applications. MDPI 2011 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/77964/1/77964.pdf Shabir, Ghulam and Anwar, Farooq and Sultana, Bushra and Khalid, Zafar M. and Afzal, Muhammad and Khan, Qaiser M. and Ashrafuzzaman, Muhammad (2011) Antioxidant and antimicrobial attributes and phenolics of different solvent extracts from leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer ex Hook.) Raf.]. Molecules, 16 (9). pp. 7302-7319. ISSN 1420-3049 https://www.mdpi.com/1420-3049/16/9/7302 10.3390/molecules16097302 |
| spellingShingle | Shabir, Ghulam Anwar, Farooq Sultana, Bushra Khalid, Zafar M. Afzal, Muhammad Khan, Qaiser M. Ashrafuzzaman, Muhammad Antioxidant and antimicrobial attributes and phenolics of different solvent extracts from leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer ex Hook.) Raf.] |
| title | Antioxidant and antimicrobial attributes and phenolics of different solvent extracts from leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer ex Hook.) Raf.] |
| title_full | Antioxidant and antimicrobial attributes and phenolics of different solvent extracts from leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer ex Hook.) Raf.] |
| title_fullStr | Antioxidant and antimicrobial attributes and phenolics of different solvent extracts from leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer ex Hook.) Raf.] |
| title_full_unstemmed | Antioxidant and antimicrobial attributes and phenolics of different solvent extracts from leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer ex Hook.) Raf.] |
| title_short | Antioxidant and antimicrobial attributes and phenolics of different solvent extracts from leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer ex Hook.) Raf.] |
| title_sort | antioxidant and antimicrobial attributes and phenolics of different solvent extracts from leaves, flowers and bark of gold mohar [delonix regia (bojer ex hook.) raf.] |
| url | http://psasir.upm.edu.my/id/eprint/77964/ http://psasir.upm.edu.my/id/eprint/77964/ http://psasir.upm.edu.my/id/eprint/77964/ http://psasir.upm.edu.my/id/eprint/77964/1/77964.pdf |