Next Article in Journal
Distribution of Marine Lipophilic Toxins in Shellfish Products Collected from the Chinese Market
Next Article in Special Issue
Chitosan: An Update on Potential Biomedical and Pharmaceutical Applications
Previous Article in Journal
Positional Distribution of Fatty Acids in Triacylglycerols and Phospholipids from Fillets of Atlantic Salmon (Salmo Salar) Fed Vegetable and Fish Oil Blends
Previous Article in Special Issue
Fucoidan Stimulates Monocyte Migration via ERK/p38 Signaling Pathways and MMP9 Secretion
Article Menu

Export Article

Open AccessArticle
Mar. Drugs 2015, 13(7), 4270-4280; doi:10.3390/md13074270

Laminarin from Irish Brown Seaweeds Ascophyllum nodosum and Laminaria hyperborea: Ultrasound Assisted Extraction, Characterization and Bioactivity

1
School of Biosystems and Food Engineering, University College Dublin, Belfield, Dublin 4, Ireland
2
Food Biosciences, Teagasc Food Research Centre, Dublin 15, Ireland
3
Food Safety, Teagasc Food Research Centre, Dublin 15, Ireland
*
Author to whom correspondence should be addressed.
Academic Editor: Paola Laurienzo
Received: 14 April 2015 / Revised: 30 June 2015 / Accepted: 1 July 2015 / Published: 10 July 2015
(This article belongs to the Collection Marine Polysaccharides)
View Full-Text   |   Download PDF [466 KB, uploaded 10 July 2015]   |  

Abstract

Ultrasound assisted extraction (UAE), purification, characterization and antioxidant activity of laminarin from Irish brown seaweeds Ascophyllum nodosum and Laminarina hyperborea were investigated. UAE was carried out using 60% ultrasonic power amplitude and 0.1 M hydrochloric acid for 15 min. Separately, solid-liquid extraction was carried in an orbital shaker using 0.1 M hydrochloric acid at 70 °C for 2.5 h. UAE with hydrochloric acid resulted in the highest concentration of laminarin, 5.82% and 6.24% on dry weight basis from A. nodosum and L. hyperborea, respectively. Purification of all extracts was carried out using molecular weight cut off dialysis at 10 kDa. Characterization of the laminarin fraction was carried out using matrix assisted laser desorption/ionization time-of-flight mass spectrometry. Antioxidant activity of A. nodosum and L. hyperborea extracts had 2,2-diphenyl-1-picrylhydrazyl (DPPH) inhibition levels of 93.23% and 87.57%, respectively. Moreover, these extracts have shown inihibition of bacterial growth of Staphylcoccus aureus, Listeria monocytogenes, Escherichia coli and Salmonella typhimurium. View Full-Text
Keywords: laminarin; antioxidant; antimicrobial; bioactive; Laminaria hyperborea; Ascophyllum nodosum laminarin; antioxidant; antimicrobial; bioactive; Laminaria hyperborea; Ascophyllum nodosum
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. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Kadam, S.U.; O'Donnell, C.P.; Rai, D.K.; Hossain, M.B.; Burgess, C.M.; Walsh, D.; Tiwari, B.K. Laminarin from Irish Brown Seaweeds Ascophyllum nodosum and Laminaria hyperborea: Ultrasound Assisted Extraction, Characterization and Bioactivity. Mar. Drugs 2015, 13, 4270-4280.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Mar. Drugs EISSN 1660-3397 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top