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International Journal of Food Science
Volume 2014, Article ID 310852, 8 pages
http://dx.doi.org/10.1155/2014/310852
Research Article

Physicochemical and Phytochemical Analyses of Copra and Oil of Cocos nucifera L. (West Coast Tall Variety)

1Department of Food Technology and Biochemical Engineering (Centre for Advanced Study), Jadavpur University, Kolkata 700 032, India
2Department of Botany (Centre for Advanced Study), University of Calcutta, 35-Ballygunge Circular Road, Kolkata 700 019, India

Received 30 May 2014; Accepted 10 October 2014; Published 10 November 2014

Academic Editor: Yasunori Hamauzu

Copyright © 2014 Probir Kumar Ghosh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Coconut copra from West coast tall variety, cultivated in Kerala, India, was subjected to aqueous and solvent extractions (using n-hexane). Additionally, oil was extracted from the copra in Soxhlet assembly using petroleum ether (b.p. 60–80°C). Physicochemical and phytochemical analyses were conducted for the extracts and the oil, with commercial coconut oil as the experimental control. The physicochemical analyses showed that the aqueous extract of copra was milky-white in color with a sweet odor, while the solvent extract was pale yellow and odorless. The commercial oil had % oleic acid and a TOTOX value of , lower than the Soxhlet extracted oil. Among all the extracts and oils, best phytochemical properties, antioxidant activity (DPPH activity, IC50 value  mg/mL), total phenol ( mg gallic acid eq./g dry copra), reducing power ( mg BHT eq./g dry copra), and anti-inflammatory activity (NO activity, IC50  value  mg/mL) were obtained in the commercial coconut oil, followed by the Soxhlet extracted oil, aqueous extract, and solvent extract. Fatty acid composition analyses showed mainly medium chain fatty acids in the copra oil with lauric acid as the predominant fatty acid (51.88% and 44.84% in Soxhlet extracted and commercial oils, resp.).