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• Khoo, H
• Prasad, K
• Ismail, A
• Mohd-Esa, N
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• Prasad, K
• Ismail, A
• Mohd-Esa, N
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• Prasad, K
• Ismail, A
• Mohd-Esa, N

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Molecules 2010, 15(10), 6699-6712; doi:10.3390/molecules15106699

Article

Carotenoids from Mangifera Pajang and Their Antioxidant Capacity

Hock-Eng Khoo ¹, K. Nagendra Prasad ¹, Amin Ismail ^1,2,*  and Nohaizan Mohd-Esa ¹

¹ Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia ² Laboratory of Analysis and Authentication, Halal Products Research Institute, Universiti Putra, Malaysia, 43400 Serdang, Selangor, Malaysia

* Author to whom correspondence should be addressed.

Received: 4 August 2010; in revised form: 22 September 2010 / Accepted: 25 September 2010 / Published: 28 September 2010

Download PDF Full-Text [342 KB, uploaded 28 September 2010 14:16 CEST]

Abstract: This study provides new data on the various carotenoids found in bambangan (Mangifera pajang Kosterm.) peel and pulp extracts, such as all-trans-α- and β-carotene, cis-β-carotene, 9-cis-β-carotene, and cryptoxanthin. Chemical and biological antioxidant assays were determined to evaluate the antioxidant capacity of bambangan peel and pulp extracts. Bambangan pulp had higher α- and β-carotene contents (7.96 ± 1.53 and 20.04 ± 1.01 mg/100 g) than its peel (4.2 ± 0.14 and 13.09 ± 0.28 mg/100 g); the cryptoxanthin contents of bambangan peel and pulp were 0.60 and 1.18 mg/100 g, respectively. The antioxidant activity results determined by chemical assay using the 2,2-diphenyl-2-picrylhydrazyl (DPPH) method showed that bambangan peel extract had higher DPPH radical scavenging activity than its pulp. In the biological assays bambangan peel and pulp had protective effects against hemoglobin and LDL oxidation at an extract concentration of 1 ppm. Bambangan peel is a therefore a potential source of natural antioxidants and could be utilized as a functional ingredient.

Keywords: antioxidant activity; bambangan; biological assay; carotenoids; DPPH

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