Environmental Science Program, Mount Allison University, 62 York Street, Sackville, New Brunswick, E4L 1E2, Canada.
Department of Mathematics and Computer Science, Mount Allison University, 62 York Street, Sackville, New Brunswick, E4L 1E2, Canada.
J Phycol. 2019 Dec;55(6):1361-1369. doi: 10.1111/jpy.12913. Epub 2019 Oct 11.
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.
大型藻类的高分子组成影响水生生态系统中的营养流动和食物质量，以及大型藻类物种对人类食用、水产养殖、生物燃料和其他应用的价值。我们使用文献数据（125 篇出版物，1117 个观测值）和层次贝叶斯统计模型来估计大型藻类的平均高分子组成、蛋白质、脂质和碳水化合物，以及门水平的平均高分子组成、蛋白质、脂质和碳水化合物。我们的重点是来自野外野生种群的海洋、非钙化大型藻类。我们发现，高分子组成的中位数为 9.98%的蛋白质、2.7%的脂质、48.5%的碳水化合物和 31.8%的灰分，均为干重的百分比。我们将大型藻类的高分子含量中位数与微藻类和草本植物进行了比较，并测试了大型藻类门之间的高分子含量差异。与微藻类相比，大型藻类的碳水化合物和矿物质含量要丰富得多，而蛋白质和脂质含量要低得多。红藻大型藻类的脂质含量明显较低，而蛋白质含量明显较高，而 Ochrophyte 大型藻类的蛋白质含量则明显低于平均值。
