2012
DOI: 10.1016/j.foodchem.2011.11.114
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Direct analysis for the distribution of toxic glycoalkaloids in potato tuber tissue using matrix-assisted laser desorption/ionization mass spectrometric imaging

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Cited by 55 publications
(34 citation statements)
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“…A reproducible heterogeneous distribution of the ions of m/z 852 and 868 can be observed in the sprout. In accordance with the results reported by Friedman et al in 1992 using highperformance liquid chromatography (HPLC) [25] and Ha et al in 2012 by matrix assisted laser desorption ionization (MALDI)-IMS [26], the distribution of the α-chaconine and α-solanine greatly varies when comparing the sprout and the tuber. As the total glycoalkaloid content was reported to range (in mg per 100 g of fresh weight) from 2 for tuber to 997 for sprout, a similar variance in distribution (see ion of m/z 868) can be observed in Supplementary Figure S1 using imaging DESI-MS.…”
Section: Resultssupporting
confidence: 88%
“…A reproducible heterogeneous distribution of the ions of m/z 852 and 868 can be observed in the sprout. In accordance with the results reported by Friedman et al in 1992 using highperformance liquid chromatography (HPLC) [25] and Ha et al in 2012 by matrix assisted laser desorption ionization (MALDI)-IMS [26], the distribution of the α-chaconine and α-solanine greatly varies when comparing the sprout and the tuber. As the total glycoalkaloid content was reported to range (in mg per 100 g of fresh weight) from 2 for tuber to 997 for sprout, a similar variance in distribution (see ion of m/z 868) can be observed in Supplementary Figure S1 using imaging DESI-MS.…”
Section: Resultssupporting
confidence: 88%
“…For mass spectrometry imaging purpose, MALDI has already been used to map different metabolites on plant organs [28] such as lipids on leaf surface [29], flavonoids or glycoalkaloid in roots and root nodules [30,31], sugars within seed or stem sections [32,33]. Different matrices are described in the literature for MALDI MS analysis of vegetable material such as 1,5 diamino naphthalene (DAN) or 9-amino acridine (9-AA) in negative ion mode, and tri-hydroxy acetophenone (THAP), α-cyano-4-hydroxy cinamic acid (CHCA) or 2,5 dihydroxy-benzoic acid (DHB) in positive ion mode.…”
Section: Resultsmentioning
confidence: 99%
“…Other recent MSI studies of plant tissue described toxic glycoalkaloids in potatoe tuber 188 , symbiosis of plants with nitrogen fixing microorganisms 189 , anthocyanines in rice pericarp 190 and glucosinolates in Arabidopsis flowers and siliques 191 .…”
Section: Plant Tissuementioning
confidence: 99%
“…The methodology employed for plant MSI is well spread over the available imaging techniques MALDI 186,[188][189][190][191][192][193][194][195][196][197][198][199] , DESI [200][201][202][203][204][205] , SIMS 206 and LDI 207,208 .…”
Section: Plant Tissuementioning
confidence: 99%