Natural antioxidant contents in the seeds of four roselle Malaysian varieties and a kenaf: a comparison

Darnis, Deny Susanti and Osman, Mohamad and Draman, Nurul Nadiah (2012) Natural antioxidant contents in the seeds of four roselle Malaysian varieties and a kenaf: a comparison. Journal of Herbs, Spices & Medicinal Plants, 18. pp. 240-245. ISSN 1540-3580 (O), 1049-6475 (P)

PDF - Published Version Restricted to Repository staff only Download (125kB) | Request a copy

Abstract

The natural antioxidant contents in the ethanol extract of the seeds of four varieties of Roselle (UKMR-1, UKMR-2, UKMR-3, and UMKL-1) and Kenaf (V36) were evaluated. The ground seeds were extracted in ethanol by a Soxhlet apparatus. The results indicated that the highest seeds’ extract yield was V36 (27%), followed by UKMR-2 (21%), UMKL-1 (20%), UKMR-3 (15%), and UKMR-1 (14%). The total phenolic and flavonoid content in extracts were determined by Folin-Ciocalteu and aluminium chloride assays, respectively. The V36 had higher TPC and TFC than the Roselle varieties tested. However, there was no difference among the Roselle varieties studied in their TPC and TFC.

Item Type:	Article (Journal)
Additional Information:	5641/24403
Uncontrolled Keywords:	Total flavonoid content, total phenolic content
Subjects:	Q Science > Q Science (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Biotechnology
Depositing User:	Dr Deny Susanti Darnis
Date Deposited:	02 Jul 2012 10:59
Last Modified:	17 Jun 2014 15:32
URI:	http://irep.iium.edu.my/id/eprint/24403

Actions (login required)

View Item