Antioxidant properties of guava fruit : comparison with some local fruits
Two varieties of guava fruit were analyzed for total phenol contents, ascorbic acid contents and antioxidant activities. The antioxidant activities were assessed based on the ability of the fruit extracts in 50% ethanol to scavenge DPPH, reduce Fe(III) to Fe(II) and to bind to Fe(II) ion. The result...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Sunway University College
2006
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| Online Access: | http://eprints.sunway.edu.my/28/ http://eprints.sunway.edu.my/28/1/lim3.pdf |
| _version_ | 1848801724488220672 |
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| author | Lim, Yau Yan Lim, Theng Teng Tee, Jing Jhi |
| author_facet | Lim, Yau Yan Lim, Theng Teng Tee, Jing Jhi |
| author_sort | Lim, Yau Yan |
| building | SU Institutional Repository |
| collection | Online Access |
| description | Two varieties of guava fruit were analyzed for total phenol contents, ascorbic acid contents and antioxidant activities. The antioxidant activities were assessed based on the ability of the fruit extracts in 50% ethanol to scavenge DPPH, reduce Fe(III) to Fe(II) and to bind to Fe(II) ion. The results were compared to several other local fruits as well as orange. It was found that the guava fruit contains relatively high amounts of antioxidant. It also has high primary, but low secondary antioxidant potential. Storage at 4oC has the effect of increasing ascorbic acid content, and the non-peeled fruit has higher total phenol and ascorbic acid contents compared to the peeled fruit. The length and width of the seedy guava were also monitored over a period of 17 weeks to define specific stages of fruit ripening. |
| first_indexed | 2025-11-14T21:12:00Z |
| format | Article |
| id | sunway-28 |
| institution | Sunway University |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T21:12:00Z |
| publishDate | 2006 |
| publisher | Sunway University College |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | sunway-282012-10-15T03:46:03Z http://eprints.sunway.edu.my/28/ Antioxidant properties of guava fruit : comparison with some local fruits Lim, Yau Yan Lim, Theng Teng Tee, Jing Jhi QK Botany RS Pharmacy and materia medica Two varieties of guava fruit were analyzed for total phenol contents, ascorbic acid contents and antioxidant activities. The antioxidant activities were assessed based on the ability of the fruit extracts in 50% ethanol to scavenge DPPH, reduce Fe(III) to Fe(II) and to bind to Fe(II) ion. The results were compared to several other local fruits as well as orange. It was found that the guava fruit contains relatively high amounts of antioxidant. It also has high primary, but low secondary antioxidant potential. Storage at 4oC has the effect of increasing ascorbic acid content, and the non-peeled fruit has higher total phenol and ascorbic acid contents compared to the peeled fruit. The length and width of the seedy guava were also monitored over a period of 17 weeks to define specific stages of fruit ripening. Sunway University College 2006 Article PeerReviewed text en http://eprints.sunway.edu.my/28/1/lim3.pdf Lim, Yau Yan and Lim, Theng Teng and Tee, Jing Jhi (2006) Antioxidant properties of guava fruit : comparison with some local fruits. Sunway Academic Journal, 3. pp. 9-20. |
| spellingShingle | QK Botany RS Pharmacy and materia medica Lim, Yau Yan Lim, Theng Teng Tee, Jing Jhi Antioxidant properties of guava fruit : comparison with some local fruits |
| title | Antioxidant properties of guava fruit : comparison with some local fruits |
| title_full | Antioxidant properties of guava fruit : comparison with some local fruits |
| title_fullStr | Antioxidant properties of guava fruit : comparison with some local fruits |
| title_full_unstemmed | Antioxidant properties of guava fruit : comparison with some local fruits |
| title_short | Antioxidant properties of guava fruit : comparison with some local fruits |
| title_sort | antioxidant properties of guava fruit : comparison with some local fruits |
| topic | QK Botany RS Pharmacy and materia medica |
| url | http://eprints.sunway.edu.my/28/ http://eprints.sunway.edu.my/28/1/lim3.pdf |