Document Detail

Betaine yields from marine algal species utilized in the preparation of seaweed extracts used in agriculture.
MedLine Citation:
PMID:  20433077     Owner:  NLM     Status:  MEDLINE    
Ascophyllum nodosum, and to a lesser extent, Laminaria digitata, L. hyperborea and Fucus serratus, are marine algal species utilized in the commercial production of seaweed extracts used in agriculture. Betaines have been shown to be important constituents of these extracts, but there appears to have been no study made on whether there are variations in the betaine contents of these species based on either the place or date of collection. Samples of each of the four species were collected from widely separated areas at different times of the year. Also, in the case of A. nodosum, approximately monthly collections were made from one location. The betaines detected in the various collections of the same species showed little variation, although in the case ofA. nodosum, glycinebetaine was found as a minor constituent in some samples, but was not detected in others. Trigonelline was found in all the tested samples of the two Laminaria species; this is, to our knowledge, the first record of this betaine in marine algae. With the exception of trigonelline in the Laminaria species, the betaine yields from the various samples of L. digitata, L. hyperborea and F. serratus showed little variation, regardless of either the place or date of collection. The trigonelline contents of the Laminaria species collected at one location (Finavarra, Ireland), in particular of L. hyperborea, was substantially greater than those from the other places of collection. In the case of A. nodosum, the betaine yields from samples collected at one site (Dale, Pembrokeshire, UK) were significantly higher than those from the other places of collection, which were very similar to each other. There was no clear indication of seasonal variation in betaine yields from A. nodosum.
Gerald Blunden; Peter F Morse; Imre Mathe; Judit Hohmann; Alan T Critchleye; Stephen Morrell
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Natural product communications     Volume:  5     ISSN:  1934-578X     ISO Abbreviation:  Nat Prod Commun     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-05-03     Completed Date:  2010-06-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101477873     Medline TA:  Nat Prod Commun     Country:  United States    
Other Details:
Languages:  eng     Pagination:  581-5     Citation Subset:  IM    
School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, Hampshire, UK.
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MeSH Terms
Algae, Brown / chemistry*
Betaine / analysis,  isolation & purification*
Nuclear Magnetic Resonance, Biomolecular
Plant Diseases / prevention & control*
Seaweed / microbiology*
Reg. No./Substance:

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