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Carotenoids and antioxidant capacities from Canarium odontophyllum Miq. fruit
Authors:K Nagendra Prasad  Lye Yee Chew  HE Khoo  Bao Yang  Azrina Azlan  Amin Ismail
Affiliation:1. Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia;2. South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, People’s Republic of China;3. Laboratory of Analysis and Authentication, Halal Products Research Institute, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
Abstract:Carotenoids were isolated and identified from peel, pulp and seed fractions of Canarium odontophyllum Miq., and their antioxidant capacities were evaluated. all-trans-β-carotene was present in a large amount in peel (69.5 ± 1.0 mg/kg), followed by pulp (31.1 ± 0.76 mg/kg) and seed (15.1 ± 3.0 mg/kg). Additionally, 15-cis-β-carotene, 9-cis-β-carotene and 13-cis-β-carotenes were also major contributors to carotenoid contents in peel, pulp and seed fractions. Pulp exhibited excellent β-carotene bleaching activity, significantly higher than peel and seed; high 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging activity, whereas peel exhibited significantly higher scavenging activity of 2,2’-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS) radicals. All the extracts exhibited good inhibitory effect against hydrogen peroxide-induced haemoglobin oxidation, ranging from 45.3 to 59.7%. This is the first report about carotenoids and antioxidant capacities from C. odontophyllum fruit, and indicates that this fruit can be explored and promoted as a potential source of natural antioxidants.
Keywords:Antioxidant activity  Canarium odontophylluim  Carotenoids  Haemoglobin oxidation
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