The macromolecular composition of noncalcified marine macroalgae

The macromolecular composition of macroalgae influences nutrient flow and food quality in aquatic ecosystems and the value of macroalgae species for human consumption, aquaculture, biofuels, and other applications. We used literature data (125 publications, 1,117 observations) and a hierarchal Bayes...

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Bibliographic Details
Published inJournal of phycology Vol. 55; no. 6; pp. 1361 - 1369
Main Authors Fiset, Catherine, Irwin, Andrew J., Finkel, Zoe V.
Format Journal Article
LanguageEnglish
Published United States Wiley Subscription Services, Inc 01.12.2019
Subjects
Algae
Aquaculture
Aquatic ecosystems
ash
Bayes Theorem
Bayesian analysis
Biofuels
Carbohydrates
Chlorophyta
Composition
Dry weight
Ecosystem
Food quality
Humans
Lipids
macroalgae
Macromolecules
Mathematical models
Median (statistics)
Microalgae
Minerals
Nutrient flow
Ochrophyta
Phytoplankton
Probability theory
protein
Protein composition
Proteins
Rhodophyta
Seaweed
Seaweeds
Statistical models
Rhodophyta
carbohydrates
lipids
Chlorophyta
macroalgae
ash
protein
Ochrophyta
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Summary:The macromolecular composition of macroalgae influences nutrient flow and food quality in aquatic ecosystems and the value of macroalgae species for human consumption, aquaculture, biofuels, and other applications. We used literature data (125 publications, 1,117 observations) and a hierarchal Bayesian statistical model to estimate the average macromolecular composition, protein, lipid, and carbohydrate of macroalgae as a whole and at the phylum level. Our focus was on marine, noncalcified macroalgae sampled from wild‐grown populations in the field. We found that the median macromolecular composition is 9.98% protein, 2.7% lipid, 48.5% carbohydrate, and 31.8% ash as percent dry weight. We compared the median macromolecular content of macroalgae to microalgae and herbaceous plants and test for differences in macromolecular content across macroalgal phyla. Macroalgae were much more enriched in carbohydrate and minerals than the microalgae and lower in protein and lipid than many herbaceous plants. Rhodophyte macroalgae have significantly less lipid and more protein and the Ochrophyte macroalgae have significantly less protein than the average.
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ISSN:0022-3646
1529-8817
DOI:10.1111/jpy.12913