ŠEDO, Ondrej, Michal KOŘÁN, Michaela JAKEŠOVÁ, Renata MIKULÍKOVÁ, Michal BOHÁČ a Zbyněk ZDRÁHAL. Rapid assignment of malting barley varieties by matrix-assisted laser desorption-ionisation - Time-of-flight mass spectrometry. Food Chemistry. Oxford: ELSEVIER SCI LTD, 2016, roč. 206, September, s. 124-130. ISSN 0308-8146. Dostupné z: https://dx.doi.org/10.1016/j.foodchem.2016.03.056. |
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@article{1343703, author = {Šedo, Ondrej and Kořán, Michal and Jakešová, Michaela and Mikulíková, Renata and Boháč, Michal and Zdráhal, Zbyněk}, article_location = {Oxford}, article_number = {September}, doi = {http://dx.doi.org/10.1016/j.foodchem.2016.03.056}, keywords = {Barley; Malting; MALDI-TOF MS; Proteins}, language = {eng}, issn = {0308-8146}, journal = {Food Chemistry}, title = {Rapid assignment of malting barley varieties by matrix-assisted laser desorption-ionisation - Time-of-flight mass spectrometry}, url = {http://www.sciencedirect.com/science/article/pii/S0308814616304095}, volume = {206}, year = {2016} }
TY - JOUR ID - 1343703 AU - Šedo, Ondrej - Kořán, Michal - Jakešová, Michaela - Mikulíková, Renata - Boháč, Michal - Zdráhal, Zbyněk PY - 2016 TI - Rapid assignment of malting barley varieties by matrix-assisted laser desorption-ionisation - Time-of-flight mass spectrometry JF - Food Chemistry VL - 206 IS - September SP - 124-130 EP - 124-130 PB - ELSEVIER SCI LTD SN - 03088146 KW - Barley KW - Malting KW - MALDI-TOF MS KW - Proteins UR - http://www.sciencedirect.com/science/article/pii/S0308814616304095 L2 - http://www.sciencedirect.com/science/article/pii/S0308814616304095 N2 - A method for discriminating malting barley varieties based on direct matrix-assisted laser desorption-ionisation -time-of-flight mass spectrometry (MALDI-TOF MS) fingerprinting of proteins was developed. Signals corresponding to hordeins were obtained by simple mixing of powdered barley grain with a MALDI matrix solution containing 12.5 mg mL(-1) of ferulic acid in an acetonitrile: water: formic acid 50:33:17 v/v/v mixture. Compared to previous attempts at MALDI-TOF mass spectrometric analysis of barley proteins, the extraction and fractionation steps were practically omitted, resulting in a significant reduction in analytical time and costs. The discriminatory power was examined on twenty malting barley varieties and the practicability of the method was tested on sixty barley samples acquired from Pilsner Urquell Brewery. The method is proposed as a rapid tool for variety assignment and purity determination of malting barley that may replace gel electrophoresis currently used for this purpose. ER -
ŠEDO, Ondrej, Michal KOŘÁN, Michaela JAKEŠOVÁ, Renata MIKULÍKOVÁ, Michal BOHÁČ a Zbyněk ZDRÁHAL. Rapid assignment of malting barley varieties by matrix-assisted laser desorption-ionisation - Time-of-flight mass spectrometry. \textit{Food Chemistry}. Oxford: ELSEVIER SCI LTD, 2016, roč.~206, September, s.~124-130. ISSN~0308-8146. Dostupné z: https://dx.doi.org/10.1016/j.foodchem.2016.03.056.
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