For the protein- and peptide-based quantitation of wheat adulteration in spelt and spelt products, a selection of spelt and wheat cultivars was analysed by HPLC and classified into groups ranging from ‘spelt-like’ to ‘wheat-like’. This led to the identification of omega b-gliadins as proteins typical of wheat. The amino acid sequences of cysteine peptides from omega b-gliadins were determined and these peptides were used to develop a LC-MS/MS method to assess the wheat content of spelt-based products. Intact omega b-gliadins were suitable to quantify wheat in spelt grain and spelt flour by HPLC.
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For the protein- and peptide-based quantitation of wheat adulteration in spelt and spelt products, a selection of spelt and wheat cultivars was analysed by HPLC and classified into groups ranging from ‘spelt-like’ to ‘wheat-like’. This led to the identification of omega b-gliadins as proteins typical of wheat. The amino acid sequences of cysteine peptides from omega b-gliadins were determined and these peptides were used to develop a LC-MS/MS method to assess the wheat content of spelt-based pro...
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