Molecular investigation of carrageenan production in Kappaphycus alvarezii in different culture conditions: a proteomic approach

Usuldin, Siti Rokhiyah Ahmad and Al-Obaidi, Jameel R. and Razali, Nurhanani and Junit, Sarni Mat and Ajang, Muhamad Johnny and Hussin, Siti Nahdatul Isnaini Said and Hamid, Shahlizah Sahul and Hanafi, Nursyuhaida Mohd and Roni, Ahmad Nor Hafzan Mat and Saleh, Norihan Mohd (2017) Molecular investigation of carrageenan production in Kappaphycus alvarezii in different culture conditions: a proteomic approach. Journal of Applied Phycology, 29 (4). pp. 1989-2001. ISSN 0921-8971, DOI https://doi.org/10.1007/s10811-017-1119-1.

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Official URL: https://doi.org/10.1007/s10811-017-1119-1

Abstract

Carrageenan is a polysaccharide extracted from different species of red seaweed for use in pharmaceuticals and cosmetics industries. In Malaysia, κ-carrageenan is obtained through extraction from the tropical red seaweed Kappaphycus alvarezii. The use of tissue culture techniques in the propagation of K. alvarezii has proven to be effective in solving cultivation problems and produced high-quality seedlings and providing a sustainable source of better quality carrageenan. In order to understand the molecular mechanisms behind that, a proteomic investigation was conducted comparing the changes in protein expression in tissue-cultured and liquid-cultured K. alvarezii after 60 days of cultivation. Proteomic analysis was used to study the changes in the protein expression level between liquid-cultured and tissue-cultured of the red seaweed K. alvarezii. A total of 45 protein spots were found to be significantly different in their densities and three proteins, namely β-amylase, NAD-dependent sugar epimerase and B-phycoerythrin, showed a consistent pattern of upregulation in ELISA analyses, hence validating the 2-DE profiles. Changes in the proteins expression level were noticed in proteins related to energy production, metabolism and cellular maintenance. The protein changes in tissue-cultured seaweed possibly play an essential role in the production of carrageenan.

Item Type: Article
Funders: Funded by the grant (08-05-ABI-PB031)
Uncontrolled Keywords: Carrageenan; Carrageenan biosynthesis pathway; Kappaphycus alvarezii; Rhodophyta; Seaweed proteomics; Tissue culture
Subjects: R Medicine
Divisions: Faculty of Medicine
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 26 Oct 2019 04:44
Last Modified: 26 Oct 2019 04:44
URI: http://eprints.um.edu.my/id/eprint/22860

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