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格陵兰十种海藻中17种元素的表征与化学计量学评估

Characterisation and chemometric evaluation of 17 elements in ten seaweed species from Greenland.

作者信息

Kreissig Katharina J, Hansen Lisbeth Truelstrup, Jensen Pernille Erland, Wegeberg Susse, Geertz-Hansen Ole, Sloth Jens J

机构信息

National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark.

Department of Civil Engineering, Technical University of Denmark, Kgs. Lyngby, Denmark.

出版信息

PLoS One. 2021 Feb 8;16(2):e0243672. doi: 10.1371/journal.pone.0243672. eCollection 2021.

DOI:10.1371/journal.pone.0243672
PMID:33556100
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7869976/
Abstract

Several Greenland seaweed species have potential as foods or food ingredients, both for local consumption and export. However, knowledge regarding their content of beneficial and deleterious elements on a species specific and geographical basis is lacking. This study investigated the content of 17 elements (As, Ca, Cd, Cr, Cu, Fe, Hg, I, K, Mg, Mn, Na, Ni, P, Pb, Se and Zn) in 77 samples of ten species (Agarum clathratum, Alaria esculenta, Ascophyllum nodosum, Fucus distichus, Fucus vesiculosus, Hedophyllum nigripes, Laminaria solidungula, Palmaria palmata, Saccharina latissima and Saccharina longicruris). Element profiles differed between species but showed similar patterns within the same family. For five species, different thallus parts were investigated separately, and showed different element profiles. A geographic origin comparison of Fucus species indicated regional differences. The seaweeds investigated were especially good sources of macrominerals (K > Na > Ca > Mg) and trace minerals, such as Fe. Iodine contents were high, especially in macroalgae of the family Laminariaceae. None of the samples exceeded the EU maximum levels for Cd, Hg or Pb, but some exceeded the stricter French regulations, especially for Cd and I. In conclusion, these ten species are promising food items.

摘要

几种格陵兰海藻物种有潜力作为食物或食物成分，供当地消费和出口。然而，缺乏关于其在物种特定和地理基础上有益和有害元素含量的知识。本研究调查了十个物种（网格琼脂藻、掌状海带、泡叶藻、叉开岩藻、囊藻、黑柄叶藻、硬囊海带、红掌藻、极北海带和长梗海带）的77个样本中17种元素（砷、钙、镉、铬、铜、铁、汞、碘、钾、镁、锰、钠、镍、磷、铅、硒和锌）的含量。元素分布在不同物种间存在差异，但在同一科内呈现相似模式。对于五个物种，分别研究了不同的叶状体部分，其元素分布不同。对岩藻属物种的地理起源比较表明存在区域差异。所研究的海藻是常量矿物质（钾>钠>钙>镁）和微量矿物质（如铁）的优质来源。碘含量很高，尤其是在海带科的大型藻类中。没有样本超过欧盟对镉、汞或铅的最高限量，但一些样本超过了更严格的法国法规，特别是镉和碘的法规。总之，这十个物种是很有前景的食物。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5c3/7869976/05cc8693816c/pone.0243672.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5c3/7869976/d86eb4d8ed88/pone.0243672.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5c3/7869976/313bc3b21e74/pone.0243672.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5c3/7869976/166f3027bafa/pone.0243672.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5c3/7869976/d0c0956f5a53/pone.0243672.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5c3/7869976/355efb8dea76/pone.0243672.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5c3/7869976/05cc8693816c/pone.0243672.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5c3/7869976/d86eb4d8ed88/pone.0243672.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5c3/7869976/313bc3b21e74/pone.0243672.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5c3/7869976/166f3027bafa/pone.0243672.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5c3/7869976/d0c0956f5a53/pone.0243672.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5c3/7869976/355efb8dea76/pone.0243672.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5c3/7869976/05cc8693816c/pone.0243672.g006.jpg

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