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Response surface methodology optimization for extraction of phenolics and antioxidant capacity in defatted dabai parts


Citation

Khoo, Hock Eng and Azlan, Azrina and Ismail, Amin and Abas, Faridah (2013) Response surface methodology optimization for extraction of phenolics and antioxidant capacity in defatted dabai parts. Sains Malaysiana, 42 (7). pp. 949-954. ISSN 0126-6039

Abstract

This study aimed to determine the total phenolics and antioxidant capacity of defatted dabai parts based on liquid extraction and optimized using response surface methodology (RSM). A two-level factorial design was applied to determine the effect of two independent variables (extraction time: X1 and % methanol: X2) on three response variables (total phenolic content: Y1, total flavonoid/anthocyanin content: Y2 and Trolox equivalent antioxidant capacity: Y3). The optimum conditions for extraction time and percent methanol were 36 min or 1 min and 62.25% or 53% for the defatted dabai pulp or peel, respectively. The RSM optimized extraction was compared with sonication-assisted extraction. Optimization results showed that defatted dabai parts had high total phenolic content and antioxidant capacity. Sonication-assisted extraction utilized the optimized extraction conditions had further increased the total phenolic content and antioxidant capacity of defatted dabai peel, but not in the pulp. Therefore, optimization of different extraction methods for the defatted fruit parts is recommended for future studies.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Food Science and Technology
Faculty of Medicine and Health Science
Halal Products Research Institute
Publisher: Penerbit Universiti Kebangsaan Malaysia
Keywords: Antioxidant capacity; Canarium odontophyllum; Response surface methodology; Sonication; Total phenolics
Depositing User: Raja Norazlinda Raja Azenam
Date Deposited: 27 Dec 2014 14:47
Last Modified: 21 Jan 2016 08:52
URI: http://psasir.upm.edu.my/id/eprint/29756
Statistic Details: View Download Statistic

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