IIUM Repository (IREP)

Effect of locality on carotenoids stability in Malaysian orange sweet potato (Ipomoea batatas) tuber flesh

Kammona, Suhair and Othman, Rashidi and Jaswir, Irwandi and Jamal, Parveen (2015) Effect of locality on carotenoids stability in Malaysian orange sweet potato (Ipomoea batatas) tuber flesh. In: International Postgraduate Network (IPN.org) and IWNEST (IPN-IWNEST 2015), 1-2 May 2015, Phuket, Thailand. (Unpublished)

[img] PDF - Published Version
Restricted to Repository staff only

Download (415kB) | Request a copy

Abstract

Carotenoids are bioactive antioxidant pigments with pharmaceutical potential. Carotenoids such as α-carotene and β-carotene react as provitamin A in human body, while lutein and zeaxanthin are two major components of the macular pigment of the retina. Due to its high carotenoids and pro-vitamin A content, sweet potato (Ipomoea batatas) is believed to have many nutritional and medicinal benefits. The carotenoid content in sweet potato or as locally known Keledek in Malaysia were determined using spectrophotometry and high performance liquid chromatography HPLC analysis. Objective: This study aimed to assess the carotenoids content stability in five different localities in Malaysia (Kelantan, Pahang, Terengganu, Selangor and Perak) of orange sweet potato tuber. All analyses were carried out in triplicate. Results: Results of this study revealed that the orange sweet potato (OSP) from Kelantan showed the highest total carotenoids content. For individual carotenoids, β-carotene ranged from 1123.85±0.04 μg/g to 399.4±3.62 μg/g DW. Zeaxanthin was detected only in Kelantan OSP 13.01±0.00 μg/g DW. Carotenoids profiles for orange fresh tubers from five Malaysian localities revealed marked differences in individual carotenoids composition. Conclusion: Generally, location or geographic site of crop can be considered as an important factor that affects carotenoids content in sweet potato flesh tuber.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: 3842/43586
Uncontrolled Keywords: Carotenoids
Subjects: S Agriculture > S Agriculture (General)
S Agriculture > SB Plant culture
T Technology > TP Chemical technology > TP248.13 Biotechnology
T Technology > TP Chemical technology > TP934 Paints, pigments, varnishes, etc
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Architecture and Environmental Design > Department of Landscape Architecture
Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User: Dr rashidi othman
Date Deposited: 08 Jul 2015 15:30
Last Modified: 03 Jan 2018 15:27
URI: http://irep.iium.edu.my/id/eprint/43586

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year