Antioxidant Properties of Popular Turmeric (Curcuma longa) Varieties from Bangladesh
We investigated the aqueous and ethanolic extracts of different forms (local names: mura and chora) of turmeric (Curcuma longa) from the Khulna and Chittagong divisions of Bangladesh for their antioxidant properties and polyphenol, flavonoid, tannin, and ascorbic acid contents. The antioxidant activ...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Journal of Food Quality |
| Online Access: | http://dx.doi.org/10.1155/2017/8471785 |
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| author | E. M. Tanvir Md. Sakib Hossen Md. Fuad Hossain Rizwana Afroz Siew Hua Gan Md. Ibrahim Khalil Nurul Karim |
| author_facet | E. M. Tanvir Md. Sakib Hossen Md. Fuad Hossain Rizwana Afroz Siew Hua Gan Md. Ibrahim Khalil Nurul Karim |
| author_sort | E. M. Tanvir |
| collection | DOAJ |
| description | We investigated the aqueous and ethanolic extracts of different forms (local names: mura and chora) of turmeric (Curcuma longa) from the Khulna and Chittagong divisions of Bangladesh for their antioxidant properties and polyphenol, flavonoid, tannin, and ascorbic acid contents. The antioxidant activity was determined using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical-scavenging activity and ferric reducing antioxidant power (FRAP) values. The ethanolic extract of Chittagong’s mura contained the highest concentrations of polyphenols (16.07%), flavonoids (9.66%), and ascorbic acid (0.09 mg/100 g) and chora resulted in high yields (17.39%). The ethanolic extract of Khulna’s mura showed a higher DPPH radical-scavenging activity with the lowest 50% inhibitory concentration (IC50) (1.08 μg/mL), while Khulna’s chora had the highest FRAP value (4204.46±74.48 μM Fe [II] per 100 g). Overall, the ethanolic extract had higher antioxidant properties than those in the aqueous extract. However, the tannin concentration was lower in the ethanolic extract. We conclude that the turmeric varieties investigated in this study are useful sources of natural antioxidants, which confer significant protection against free radical damage. |
| format | Article |
| id | doaj-art-7272e263f32c407c8faccdcaecd0b85d |
| institution | Kabale University |
| issn | 0146-9428 1745-4557 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Food Quality |
| spelling | doaj-art-7272e263f32c407c8faccdcaecd0b85d2025-02-03T07:25:18ZengWileyJournal of Food Quality0146-94281745-45572017-01-01201710.1155/2017/84717858471785Antioxidant Properties of Popular Turmeric (Curcuma longa) Varieties from BangladeshE. M. Tanvir0Md. Sakib Hossen1Md. Fuad Hossain2Rizwana Afroz3Siew Hua Gan4Md. Ibrahim Khalil5Nurul Karim6Laboratory of Preventive and Integrative Biomedicine, Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka 1342, BangladeshLaboratory of Preventive and Integrative Biomedicine, Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka 1342, BangladeshDepartment of Agricultural Biology, Faculty of Agriculture, University of Ruhuna, Mapalana, Matara, Sri LankaLaboratory of Preventive and Integrative Biomedicine, Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka 1342, BangladeshHuman Genome Centre, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, MalaysiaLaboratory of Preventive and Integrative Biomedicine, Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka 1342, BangladeshLaboratory of Preventive and Integrative Biomedicine, Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka 1342, BangladeshWe investigated the aqueous and ethanolic extracts of different forms (local names: mura and chora) of turmeric (Curcuma longa) from the Khulna and Chittagong divisions of Bangladesh for their antioxidant properties and polyphenol, flavonoid, tannin, and ascorbic acid contents. The antioxidant activity was determined using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical-scavenging activity and ferric reducing antioxidant power (FRAP) values. The ethanolic extract of Chittagong’s mura contained the highest concentrations of polyphenols (16.07%), flavonoids (9.66%), and ascorbic acid (0.09 mg/100 g) and chora resulted in high yields (17.39%). The ethanolic extract of Khulna’s mura showed a higher DPPH radical-scavenging activity with the lowest 50% inhibitory concentration (IC50) (1.08 μg/mL), while Khulna’s chora had the highest FRAP value (4204.46±74.48 μM Fe [II] per 100 g). Overall, the ethanolic extract had higher antioxidant properties than those in the aqueous extract. However, the tannin concentration was lower in the ethanolic extract. We conclude that the turmeric varieties investigated in this study are useful sources of natural antioxidants, which confer significant protection against free radical damage.http://dx.doi.org/10.1155/2017/8471785 |
| spellingShingle | E. M. Tanvir Md. Sakib Hossen Md. Fuad Hossain Rizwana Afroz Siew Hua Gan Md. Ibrahim Khalil Nurul Karim Antioxidant Properties of Popular Turmeric (Curcuma longa) Varieties from Bangladesh Journal of Food Quality |
| title | Antioxidant Properties of Popular Turmeric (Curcuma longa) Varieties from Bangladesh |
| title_full | Antioxidant Properties of Popular Turmeric (Curcuma longa) Varieties from Bangladesh |
| title_fullStr | Antioxidant Properties of Popular Turmeric (Curcuma longa) Varieties from Bangladesh |
| title_full_unstemmed | Antioxidant Properties of Popular Turmeric (Curcuma longa) Varieties from Bangladesh |
| title_short | Antioxidant Properties of Popular Turmeric (Curcuma longa) Varieties from Bangladesh |
| title_sort | antioxidant properties of popular turmeric curcuma longa varieties from bangladesh |
| url | http://dx.doi.org/10.1155/2017/8471785 |
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