Nutritional composition and in vitro evaluation of the antioxidant properties of various dates extracts (Phoenix dactylifera L.) from Libya
The aim of this study was to examine the nutritional content and antioxidant potential of three date fruit varieties (Phoenix dactylifera L.) native to Libya, namely, Bekraray, Deglet-nour and Khathori. The fruits were collected from three districts of Libya covering the northern, southern and easte...
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| Format: | Article |
| Language: | English |
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Asian Network for Scientific Information
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/15871/1/Nutritional%20composition%20and%20in%20vitro%20evaluation%20of%20the%20antioxidant%20properties%20of%20various%20dates%20extracts.pdf |
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| author | Hasan, Nawal Salem Amom, Zulkhairi Ismail, Nor Amalina Mohtarrudin, Norhafizah Mohd Esa, Norhaizan Azlan, Azrina |
| author_facet | Hasan, Nawal Salem Amom, Zulkhairi Ismail, Nor Amalina Mohtarrudin, Norhafizah Mohd Esa, Norhaizan Azlan, Azrina |
| author_sort | Hasan, Nawal Salem |
| collection | UPM |
| description | The aim of this study was to examine the nutritional content and antioxidant potential of three date fruit varieties (Phoenix dactylifera L.) native to Libya, namely, Bekraray, Deglet-nour and Khathori. The fruits were collected from three districts of Libya covering the northern, southern and eastern areas, respectively. The fruits were pitted and the flesh was extracted at 60° C for 6 h. The antioxidant activity of the extract was measured using 1-diphenyl-2-picrylhydrazyl (DPPH) method and iron (3) reduction (FRAP) assay. The Total Phenolic Content (TPC) of the date was measured using the Fohn-Ciocalteau method. The results showed that the nutritional content of dates varied by source. The flesh of Bekraray dates contained high percentage of carbohydrates (76.97%), vitamin C (8.50 mg 100 g) and potassium (6043.2 mg kg-1) whereas, Deglet-nour variety demonstrated the high percentage of total sugar (73.25%), vitamin A (10.50 μ/100g) and vitamin E (12.98 mg kg-1). On the other hand, Khathori variety showed high percentage of vitamin B2, magnesium, calcium, sodium and ferum with concentrations of 824.98, 660.74, 614.21,485.86 and 20.29mg kg-1, respectively. The Bekraray dates exhibited a significantly high concentration of TPC (p<0.05) from those of the two other varieties. The antioxidant activity correlated positively with the TPC of the extracts. The Bekraray also showed high FRAP value and free radical scavenging activity (DPPH) among the studied date varieties and the values corresponded to 13.46±0.11 umol (Fe)/g and 78.9%, respectively. These results suggest that Libyan dates varieties have a high nutritional value and possess beneficial antioxidant properties. Bekraray date was found to be superior than Deglet-nour and Khathori variety. |
| first_indexed | 2024-03-06T07:35:38Z |
| format | Article |
| id | upm.eprints-15871 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:35:38Z |
| publishDate | 2010 |
| publisher | Asian Network for Scientific Information |
| record_format | dspace |
| spelling | upm.eprints-158712017-10-27T05:05:36Z http://psasir.upm.edu.my/id/eprint/15871/ Nutritional composition and in vitro evaluation of the antioxidant properties of various dates extracts (Phoenix dactylifera L.) from Libya Hasan, Nawal Salem Amom, Zulkhairi Ismail, Nor Amalina Mohtarrudin, Norhafizah Mohd Esa, Norhaizan Azlan, Azrina The aim of this study was to examine the nutritional content and antioxidant potential of three date fruit varieties (Phoenix dactylifera L.) native to Libya, namely, Bekraray, Deglet-nour and Khathori. The fruits were collected from three districts of Libya covering the northern, southern and eastern areas, respectively. The fruits were pitted and the flesh was extracted at 60° C for 6 h. The antioxidant activity of the extract was measured using 1-diphenyl-2-picrylhydrazyl (DPPH) method and iron (3) reduction (FRAP) assay. The Total Phenolic Content (TPC) of the date was measured using the Fohn-Ciocalteau method. The results showed that the nutritional content of dates varied by source. The flesh of Bekraray dates contained high percentage of carbohydrates (76.97%), vitamin C (8.50 mg 100 g) and potassium (6043.2 mg kg-1) whereas, Deglet-nour variety demonstrated the high percentage of total sugar (73.25%), vitamin A (10.50 μ/100g) and vitamin E (12.98 mg kg-1). On the other hand, Khathori variety showed high percentage of vitamin B2, magnesium, calcium, sodium and ferum with concentrations of 824.98, 660.74, 614.21,485.86 and 20.29mg kg-1, respectively. The Bekraray dates exhibited a significantly high concentration of TPC (p<0.05) from those of the two other varieties. The antioxidant activity correlated positively with the TPC of the extracts. The Bekraray also showed high FRAP value and free radical scavenging activity (DPPH) among the studied date varieties and the values corresponded to 13.46±0.11 umol (Fe)/g and 78.9%, respectively. These results suggest that Libyan dates varieties have a high nutritional value and possess beneficial antioxidant properties. Bekraray date was found to be superior than Deglet-nour and Khathori variety. Asian Network for Scientific Information 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/15871/1/Nutritional%20composition%20and%20in%20vitro%20evaluation%20of%20the%20antioxidant%20properties%20of%20various%20dates%20extracts.pdf Hasan, Nawal Salem and Amom, Zulkhairi and Ismail, Nor Amalina and Mohtarrudin, Norhafizah and Mohd Esa, Norhaizan and Azlan, Azrina (2010) Nutritional composition and in vitro evaluation of the antioxidant properties of various dates extracts (Phoenix dactylifera L.) from Libya. Asian Journal of Clinical Nutrition, 2 (4). pp. 208-214. ISSN 1992-1470; ESSN: 2077-2033 http://www.scialert.net/abstract/?doi=ajcn.2010.208.214 10.3923/ajcn.2010.208.214 |
| spellingShingle | Hasan, Nawal Salem Amom, Zulkhairi Ismail, Nor Amalina Mohtarrudin, Norhafizah Mohd Esa, Norhaizan Azlan, Azrina Nutritional composition and in vitro evaluation of the antioxidant properties of various dates extracts (Phoenix dactylifera L.) from Libya |
| title | Nutritional composition and in vitro evaluation of the antioxidant properties of various dates extracts (Phoenix dactylifera L.) from Libya |
| title_full | Nutritional composition and in vitro evaluation of the antioxidant properties of various dates extracts (Phoenix dactylifera L.) from Libya |
| title_fullStr | Nutritional composition and in vitro evaluation of the antioxidant properties of various dates extracts (Phoenix dactylifera L.) from Libya |
| title_full_unstemmed | Nutritional composition and in vitro evaluation of the antioxidant properties of various dates extracts (Phoenix dactylifera L.) from Libya |
| title_short | Nutritional composition and in vitro evaluation of the antioxidant properties of various dates extracts (Phoenix dactylifera L.) from Libya |
| title_sort | nutritional composition and in vitro evaluation of the antioxidant properties of various dates extracts phoenix dactylifera l from libya |
| url | http://psasir.upm.edu.my/id/eprint/15871/1/Nutritional%20composition%20and%20in%20vitro%20evaluation%20of%20the%20antioxidant%20properties%20of%20various%20dates%20extracts.pdf |
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