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Open AccessReview

Insights into the Regulation of Algal Proteins and Bioactive Peptides Using Proteomic and Transcriptomic Approaches

Département des Sciences des Aliments, Institut sur la Nutrition et les Aliments Fonctionnels (INAF), 2425, rue de l’Agriculture, Université Laval, Québec, QC G1V 0A6, Canada
Academic Editors: Natália Martins and Laurent Vandanjon
Molecules 2019, 24(9), 1708; https://doi.org/10.3390/molecules24091708
Received: 21 March 2019 / Revised: 22 April 2019 / Accepted: 1 May 2019 / Published: 2 May 2019
Oceans abound in resources of various kinds for R&D and for commercial applications. Monitoring and bioprospecting allow the identification of an increasing number of key natural resources. Macroalgae are essential elements of marine ecosystems as well as a natural resource influenced by dynamic environmental factors. They are not only nutritionally attractive but have also demonstrated potential health benefits such as antioxidant, antihypertensive, and anti-inflammatory activities. Several bioactive peptides have been observed following enzymatic hydrolysis of macroalgal proteins. In addition, significant differences in protein bioactivities and peptide extracts of wild and cultivated macroalgae have been highlighted, but the metabolic pathways giving rise to these bioactive molecules remain largely elusive. Surprisingly, the biochemistry that underlies the environmental stress tolerance of macroalgae has not been well investigated and remains poorly understood. Proteomic and functional genomic approaches based on identifying precursor proteins and bioactive peptides of macroalgae through integrated multi-omics analysis can give insights into their regulation as influenced by abiotic factors. These strategies allow evaluating the proteomics profile of regulation of macroalgae in response to different growth conditions as well as establishing a comparative transcriptome profiling targeting structural protein-coding genes. Elucidation of biochemical pathways in macroalgae could provide an innovative means of enhancing the protein quality of edible macroalgae. This could be ultimately viewed as a powerful way to drive the development of a tailored production and extraction of high value molecules. This review provides an overview of algal proteins and bioactive peptide characterization using proteomics and transcriptomic analyses. View Full-Text
Keywords: edible macroalgae; protein quality; bioactive peptides; metabolic pathways; proteomics; transcriptomics; health food edible macroalgae; protein quality; bioactive peptides; metabolic pathways; proteomics; transcriptomics; health food
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Beaulieu, L. Insights into the Regulation of Algal Proteins and Bioactive Peptides Using Proteomic and Transcriptomic Approaches. Molecules 2019, 24, 1708.

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