Version 1
: Received: 20 October 2016 / Approved: 21 October 2016 / Online: 21 October 2016 (08:59:13 CEST)
How to cite:
Foseid, L.O.; Devle, H.; Stenstrøm, Y.; Naess-Andresen, C.F.; Ekeberg, D. Fatty Acids Profiles of Stipe and Blade from the Norwegian Brown Macroalga Laminaria hyperborea, Using Off-Line SPE and GC-MS. Preprints2016, 2016100090. https://doi.org/10.20944/preprints201610.0090.v1
Foseid, L.O.; Devle, H.; Stenstrøm, Y.; Naess-Andresen, C.F.; Ekeberg, D. Fatty Acids Profiles of Stipe and Blade from the Norwegian Brown Macroalga Laminaria hyperborea, Using Off-Line SPE and GC-MS. Preprints 2016, 2016100090. https://doi.org/10.20944/preprints201610.0090.v1
Foseid, L.O.; Devle, H.; Stenstrøm, Y.; Naess-Andresen, C.F.; Ekeberg, D. Fatty Acids Profiles of Stipe and Blade from the Norwegian Brown Macroalga Laminaria hyperborea, Using Off-Line SPE and GC-MS. Preprints2016, 2016100090. https://doi.org/10.20944/preprints201610.0090.v1
APA Style
Foseid, L.O., Devle, H., Stenstrøm, Y., Naess-Andresen, C.F., & Ekeberg, D. (2016). Fatty Acids Profiles of Stipe and Blade from the Norwegian Brown Macroalga <em>Laminaria hyperborea</em>, Using Off-Line SPE and GC-MS. Preprints. https://doi.org/10.20944/preprints201610.0090.v1
Chicago/Turabian Style
Foseid, L.O., Carl Fredrik Naess-Andresen and Dag Ekeberg. 2016 "Fatty Acids Profiles of Stipe and Blade from the Norwegian Brown Macroalga <em>Laminaria hyperborea</em>, Using Off-Line SPE and GC-MS" Preprints. https://doi.org/10.20944/preprints201610.0090.v1
Abstract
A thorough analysis and comparison of the fatty acid profiles of stipe and blade from Laminaria hyperborea, a kelp species found in the northern Atlantic, is presented. Lipids were extracted and fractionated into neutral lipids, free fatty acids and polar lipids, then derivatized to fatty acid methyl esters prior to GC-MS analysis. A total of 42 fatty acids were identified and quantified, including the n-3 fatty acids α-linolenic acid, stearidonic acid and eicosapentaenoic acid. An n-6/n-3 ratio of 0.8:1 was found in blade and 3.5:1 in stipe, respectively. The ratios vary between the lipid fractions within stipe and blade, with the lowest ratio in the polar lipid fraction of blade. The fatty acid amounts are higher in blade than in stipe, and the highest amounts of n-3 fatty acids are found within the neutral lipid fractions. The amounts of polyunsaturated fatty acids are 3.4 times higher in blade than stipe. This study highlights the compositional differences between the lipid fractions of stipe and blade from L. hyperborea. The amount of polyunsaturated fatty acids, compared to saturated- and monounsaturated fatty acids, as well as the n-6/n-3-ratio, is known to influence human health. In the pharmaceutical, food, and feed industries this can be of importance for production and sale of different health products. Additionally, lipids are today among the unused by products of alginate production, exploiting this material for commercial interest should give both economical and environmental benefits.
Keywords
Laminaria hyperborean; lipids; fatty acids; GC-MS
Subject
Chemistry and Materials Science, Analytical Chemistry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
