Variation of the Nutritional Composition and Bioactive Potential in Edible Macroalga Cultivated from Atlantic Canada Subjected to Different Growth and Processing Conditions

Overview

Journal Foods

Specialty Biotechnology

Date 2023 Apr 28

PMID 37107531

Authors

Betina Lafeuille

Eric Tamigneaux

Karine Berger

Veronique Provencher

Lucie Beaulieu

Affiliations

Soon will be listed here.

Abstract

Macroalgae are a new food source in the Western world. The purpose of this study was to evaluate the impact of harvest months and food processing on cultivated () from Quebec. Seaweeds were harvested in May and June 2019 and processed by blanching, steaming, and drying with a frozen control condition. The chemical (lipids, proteins, ash, carbohydrates, fibers) and mineral (I, K, Na, Ca, Mg, Fe) compositions, the potential bioactive compounds (alginates, fucoidans, laminarans, carotenoids, polyphenols) and in vitro antioxidant potential were investigated. The results showed that May specimens were significantly the richest in proteins, ash, I, Fe, and carotenoids, while June macroalgae contained more carbohydrates. The antioxidant potential of water-soluble extracts (Oxygen Radical Absorbance Capacity [ORAC] analysis-625 µg/mL) showed the highest potential in June samples. Interactions between harvested months and processing were demonstrated. The drying process applied in May specimens appeared to preserve more quality, whereas blanching and steaming resulted in a leaching of minerals. Losses of carotenoids and polyphenols were observed with heating treatments. Water-soluble extracts of dried May samples showed the highest antioxidant potential (ORAC analysis) compared to other methods. Thus, the drying process used to treat harvested in May seems to be the best that should be selected.

Citing Articles

Biocosmetics Made with Fractions from Sustainable Treatment: Physicochemical and Thermorheological Features.

Florez-Fernandez N, Ferreira-Anta T, Queffelec J, Ingrez I, Bujan M, Muinos A Mar Drugs. 2023; 21(12).

PMID: 38132939 PMC: 10744486. DOI: 10.3390/md21120618.

Impact of Harvest Month and Drying Process on the Nutritional and Bioactive Properties of Wild from Atlantic Canada.

Lafeuille B, Tamigneaux E, Berger K, Provencher V, Beaulieu L Mar Drugs. 2023; 21(7).

PMID: 37504923 PMC: 10381615. DOI: 10.3390/md21070392.

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