PMID- 20005511
OWN - NLM
STAT- MEDLINE
DCOM- 20100405
LR  - 20100127
IS  - 1873-426X (Electronic)
IS  - 0008-6215 (Linking)
VI  - 345
IP  - 2
DP  - 2010 Jan 26
TI  - Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass 
      spectrometry analysis of oligosaccharides and oligosaccharide alditols obtained 
      by hydrolysis of agaroses and carrageenans, two important types of red seaweed 
      polysaccharides.
PG  - 275-83
LID - 10.1016/j.carres.2009.10.009 [doi]
AB  - MALDI-TOF mass spectrometry analyses of several oligosaccharides (aldoses) and 
      oligosaccharide alditols derived from agaroses, kappa- and iota-carrageenans 
      using different matrices (2,5-dihydroxybenzoic acid, nor-harmane, ferulic acid, 
      and the ionic liquid matrices 2,5-dihydroxybenzoic acid-n-butylamine and ferulic 
      acid-n-butylamine) were conducted. These carbohydrates were selected as model 
      compounds to study the MALDI prompt and post-source decay (PSD) fragmentation 
      processes of both families of oligosaccharides. Sulfated alditols showed in the 
      negative-ion mode the molecular ion as [M-Na](-) together with the species 
      yielded by their prompt fragmentation (mainly desulfation) while the sulfated 
      oligosaccharides (aldoses) showed mainly glycosidic prompt fragmentation 
      (glycosidic C-cleavages and desulfation). Non-sulfated aldoses and alditols, 
      which could only be analyzed in positive-ion mode ([M+Na](+)), did not suffer any 
      prompt fragmentation. The former yielded cross-ring fragmentation in the PSD 
      mode. Best results were obtained by using 2,5-dihydroxybenzoic acid and/or 
      nor-harmane as matrices for all the compounds studied.
CI  - 2009 Elsevier Ltd. All rights reserved.
FAU - Fatema, M Kaniz
AU  - Fatema MK
AD  - The United Graduate School of Agricultural Sciences, Faculty of Agriculture, 
      Ehime University, 3-5-7-Tarumi, Matsuyama 790-8566, Japan.
FAU - Nonami, Hiroshi
AU  - Nonami H
FAU - Ducatti, Diogo R B
AU  - Ducatti DR
FAU - Goncalves, Alan G
AU  - Goncalves AG
FAU - Duarte, M Eugenia R
AU  - Duarte ME
FAU - Noseda, Miguel D
AU  - Noseda MD
FAU - Cerezo, Alberto S
AU  - Cerezo AS
FAU - Erra-Balsells, Rosa
AU  - Erra-Balsells R
FAU - Matulewicz, Maria C
AU  - Matulewicz MC
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20091211
PL  - Netherlands
TA  - Carbohydr Res
JT  - Carbohydrate research
JID - 0043535
RN  - 0 (Indicators and Reagents)
RN  - 0 (Oligosaccharides)
RN  - 0 (Sugar Alcohols)
RN  - 9000-07-1 (Carrageenan)
RN  - 9012-36-6 (Sepharose)
SB  - IM
MH  - Carrageenan/*chemistry
MH  - Hydrolysis
MH  - Indicators and Reagents/chemistry
MH  - Oligosaccharides/*analysis/*chemistry
MH  - Seaweed/*chemistry
MH  - Sepharose/*chemistry
MH  - Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
MH  - Sugar Alcohols/*analysis/*chemistry
EDAT- 2009/12/17 06:00
MHDA- 2010/04/07 06:00
CRDT- 2009/12/17 06:00
PHST- 2009/06/12 00:00 [received]
PHST- 2009/10/06 00:00 [revised]
PHST- 2009/10/13 00:00 [accepted]
PHST- 2009/12/17 06:00 [entrez]
PHST- 2009/12/17 06:00 [pubmed]
PHST- 2010/04/07 06:00 [medline]
AID - S0008-6215(09)00495-9 [pii]
AID - 10.1016/j.carres.2009.10.009 [doi]
PST - ppublish
SO  - Carbohydr Res. 2010 Jan 26;345(2):275-83. doi: 10.1016/j.carres.2009.10.009. Epub 
      2009 Dec 11.