Universal mini COI barcode for the identification of fish species in processed products

Sultana, Sharmin and Ali, Md. Eaqub and Hossain, M.A. Motalib and Asing, - and Naquiah, Nina Nizar Ahmad and Sarker, Md Zaidul Islam (2018) Universal mini COI barcode for the identification of fish species in processed products. Food Research International, 105. pp. 19-28. ISSN 0963-9969

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Official URL: https://doi.org/10.1016/j.foodres.2017.10.065

Abstract

Species substitution, the use of a low value fish in place of a high value fish, is the biggest problem in international trade and the leading cause of fraud in the fisheries arena sector. Current DNA barcoding systems have partly solved this problem but also failed in many instances to amplify PCR targets from highly processed products because of the degradation of a longer barcode marker (~ 650 bp). In the present study, a novel mini barcode marker (295 bp) was developed to discriminate fish species in raw and processed states forms. The barcode primers were cross-tested against 33 fish species and 15 other animal species and found to be universal for all the tested fish varieties. When 20 commercial fish products of five different categories were screened, all commercial fish sample yielded positive bands for the novel fish barcode. PCR product was sequenced to retrieve the species IDs that reflected 55% (11/20) of Malaysian fish products were mislabeled.

Item Type: Article
Uncontrolled Keywords: Fraud labelling; Fish mini barcode; Processed fish and surimi products; DNA breakdown; Forensic studies
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Nanotechnology & Catalysis Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 05 Mar 2019 01:47
Last Modified: 05 Mar 2019 01:47
URI: http://eprints.um.edu.my/id/eprint/20596

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