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Enhancing the Authenticity of Animal By-products: Harmonization of DNA Extraction Methods from Novel Ingredients

Overview
Journal Front Chem
Specialty Chemistry
Date 2024 Mar 6
PMID 38444734
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Abstract

The increasing global pressure to explore alternative protein sources derived from animal by-products has opened-up opportunities, but it has also created the need to assess their compliance with labelling statements, to ensure consumer's trust in the composition of both feed and food products. Assessing the authenticity of highly processed animal by-products, particularly within the rapidly expanding Halal food market, presents a significant challenge due to the lack of robust and standardized methodologies. However, the success of DNA based authenticity system is highly dependent on the extracted DNA quantity, quality, and purity ratios from heterogeneous matrices. In this work, nine DNA extraction methods were tested on selected processed animal by-products with high-value and interest for the feed industry: meals from poultry meat, blood and feather, and hydrolysates from swine meat and bone, fish, and black soldier fly. The proposed DNA extraction methods are developed to specifically target swine-specific mitochondrial region, as a case study. Both the conventional CTAB method and the commercial kits, specifically Invisorb Spin Tissue Mini and NucleoSpin™ Food, demonstrated superior extraction efficiency and quality ratios. Nevertheless, commercial kits enabled faster detection in comparison to the conventional methods. The absence of swine DNA was successfully validated and confirmed in all animal meals and hydrolysates that did not contain swine in their composition beforehand, demonstrating their compliance with the Halal market requirements.

References
1.
Luo A, Zhang A, Ho S, Xu W, Zhang Y, Shi W . Potential efficacy of mitochondrial genes for animal DNA barcoding: a case study using eutherian mammals. BMC Genomics. 2011; 12:84. PMC: 3042414. DOI: 10.1186/1471-2164-12-84. View

2.
Di Bernardo G, Del Gaudio S, Galderisi U, Cascino A, Cipollaro M . Comparative evaluation of different DNA extraction procedures from food samples. Biotechnol Prog. 2007; 23(2):297-301. DOI: 10.1021/bp060182m. View

3.
Schenk J, Becklund L, Carey S, Fabre P . What is the "modified" CTAB protocol? Characterizing modifications to the CTAB DNA extraction protocol. Appl Plant Sci. 2023; 11(3):e11517. PMC: 10278931. DOI: 10.1002/aps3.11517. View

4.
Yin R, Sun Y, Wang K, Feng N, Zhang H, Xiao M . Development of a PCR-based lateral flow strip assay for the simple, rapid, and accurate detection of pork in meat and meat products. Food Chem. 2020; 318:126541. DOI: 10.1016/j.foodchem.2020.126541. View

5.
Premanandh J, Salem S . Progress and challenges associated with halal authentication of consumer packaged goods. J Sci Food Agric. 2017; 97(14):4672-4678. DOI: 10.1002/jsfa.8481. View