Chemical composition, antioxidant and antimicrobial activities of the essential oils from rhizomes and leaves of Alpinia conchigera Griff. (Zingiberaceae)
This study was conducted to assess the potential of essential oils isolated from rhizomes and leaves of Alpinia conchigera as a source of bioactive compounds through the characterization of its chemical composition, antioxidant, and anti-microbial activities. Essential oils (EOs) from the leaves and...
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| Format: | Article |
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Taylor and Francis
2021
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| Online Access: | http://psasir.upm.edu.my/id/eprint/96376/ |
| _version_ | 1848862349858963456 |
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| author | Qamaruz Zaman, Faridah Ridzuan, Raihana Abdelmageed, Adil Hassan Ahmed |
| author_facet | Qamaruz Zaman, Faridah Ridzuan, Raihana Abdelmageed, Adil Hassan Ahmed |
| author_sort | Qamaruz Zaman, Faridah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This study was conducted to assess the potential of essential oils isolated from rhizomes and leaves of Alpinia conchigera as a source of bioactive compounds through the characterization of its chemical composition, antioxidant, and anti-microbial activities. Essential oils (EOs) from the leaves and rhizomes of this species were isolated using the hydrodistillation method. The chemical compositions of EOs were analyzed by using GC and GC-MS. The major compound of the rhizome EO was eucalyptol (60.58 %), whereas the most abundant compound in the leaf EO was β-bisabolene (46.70 %). The rhizome EO contained the most abundant polyphenolic compounds that possessed higher antioxidant activities compared to leaf EO and the reference antioxidant agent butylated hydroxytoluene (BHT). In addition, there exist a positive correlation between total phenolic content and antioxidant activities using DPPH (R2= 0.7634, p < 0.05) and β-carotene antioxidant activity (R2 = 0.6865, p < 0.05). Disc diffusion assay of the essential oils indicated that the rhizome oil possessed moderate inhibitory activity against all tested bacteria and fungi, whereas leaf EO inhibited only Gram-positive bacteria. The results indicated the potential of these EOs to exert beneficial antibacterial and antifungal effects and could serve as a promising natural cheap source of antioxidants that could be used in the food and pharmaceutical industries. |
| first_indexed | 2025-11-15T13:15:37Z |
| format | Article |
| id | upm-96376 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T13:15:37Z |
| publishDate | 2021 |
| publisher | Taylor and Francis |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-963762023-02-13T00:57:36Z http://psasir.upm.edu.my/id/eprint/96376/ Chemical composition, antioxidant and antimicrobial activities of the essential oils from rhizomes and leaves of Alpinia conchigera Griff. (Zingiberaceae) Qamaruz Zaman, Faridah Ridzuan, Raihana Abdelmageed, Adil Hassan Ahmed This study was conducted to assess the potential of essential oils isolated from rhizomes and leaves of Alpinia conchigera as a source of bioactive compounds through the characterization of its chemical composition, antioxidant, and anti-microbial activities. Essential oils (EOs) from the leaves and rhizomes of this species were isolated using the hydrodistillation method. The chemical compositions of EOs were analyzed by using GC and GC-MS. The major compound of the rhizome EO was eucalyptol (60.58 %), whereas the most abundant compound in the leaf EO was β-bisabolene (46.70 %). The rhizome EO contained the most abundant polyphenolic compounds that possessed higher antioxidant activities compared to leaf EO and the reference antioxidant agent butylated hydroxytoluene (BHT). In addition, there exist a positive correlation between total phenolic content and antioxidant activities using DPPH (R2= 0.7634, p < 0.05) and β-carotene antioxidant activity (R2 = 0.6865, p < 0.05). Disc diffusion assay of the essential oils indicated that the rhizome oil possessed moderate inhibitory activity against all tested bacteria and fungi, whereas leaf EO inhibited only Gram-positive bacteria. The results indicated the potential of these EOs to exert beneficial antibacterial and antifungal effects and could serve as a promising natural cheap source of antioxidants that could be used in the food and pharmaceutical industries. Taylor and Francis 2021 Article PeerReviewed Qamaruz Zaman, Faridah and Ridzuan, Raihana and Abdelmageed, Adil Hassan Ahmed (2021) Chemical composition, antioxidant and antimicrobial activities of the essential oils from rhizomes and leaves of Alpinia conchigera Griff. (Zingiberaceae). Journal of Essential Oil Bearing Plants, 24 (6). pp. 1311-1322. ISSN 0972-060X; ESSN: 0976-5026 https://www.ingentaconnect.com/content/tandf/teop20/2021/00000024/00000006/art00011 10.1080/0972060X.2021.2016497 |
| spellingShingle | Qamaruz Zaman, Faridah Ridzuan, Raihana Abdelmageed, Adil Hassan Ahmed Chemical composition, antioxidant and antimicrobial activities of the essential oils from rhizomes and leaves of Alpinia conchigera Griff. (Zingiberaceae) |
| title | Chemical composition, antioxidant and antimicrobial activities of the essential oils from rhizomes and leaves of Alpinia conchigera Griff. (Zingiberaceae) |
| title_full | Chemical composition, antioxidant and antimicrobial activities of the essential oils from rhizomes and leaves of Alpinia conchigera Griff. (Zingiberaceae) |
| title_fullStr | Chemical composition, antioxidant and antimicrobial activities of the essential oils from rhizomes and leaves of Alpinia conchigera Griff. (Zingiberaceae) |
| title_full_unstemmed | Chemical composition, antioxidant and antimicrobial activities of the essential oils from rhizomes and leaves of Alpinia conchigera Griff. (Zingiberaceae) |
| title_short | Chemical composition, antioxidant and antimicrobial activities of the essential oils from rhizomes and leaves of Alpinia conchigera Griff. (Zingiberaceae) |
| title_sort | chemical composition, antioxidant and antimicrobial activities of the essential oils from rhizomes and leaves of alpinia conchigera griff. (zingiberaceae) |
| url | http://psasir.upm.edu.my/id/eprint/96376/ http://psasir.upm.edu.my/id/eprint/96376/ http://psasir.upm.edu.my/id/eprint/96376/ |