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Determination of Soybean Oil, Protein and Amino Acid Residues in Soybean Seeds by High Resolution Nuclear Magnetic Resonance (NMRS) and Near Infrared (NIRS) Nature Precedings
I. C. Baianu; Tiefeng You; Doina Costescu; P R. Lozano; Valentin Prisecaru; Randall L. Nelson.
A detailed account is presented of our high resolution nuclear magnetic resonance (HR-NMR) and near infrared (NIR) calibration models, methodologies and validation procedures, together with a large number of composition analyses for soybean seeds. NIR calibrations were developed based on both HR-NMR and analytical chemistry reference data for oil and twelve amino acid residues in mature soybeans and soybean embryos. This is our first report of HR-NMR determinations of amino acid profiles of proteins from whole soybean seeds, without protein extraction from the seed. It was found that the best results for both oil and protein calibrations were obtained with a Partial Least Squares Regression (PLS-1) analysis of our extensive NIR spectral data, acquired...
Tipo: Presentation Palavras-chave: Biotechnology; Chemistry; Developmental Biology; Ecology; Genetics & Genomics; Molecular Cell Biology; Bioinformatics; Plant Biology; Data Standards.
Ano: 2012 URL: http://precedings.nature.com/documents/7053/version/1
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Near Infrared Reflectance Spectroscopy (NIRS) Determination of Isoflavone Contents for Selected Soybean Accessions Nature Precedings
I. C. Baianu; Jun Guo; Tiefeng You; Randall L. Nelson.
Soybean isoflavones are of considerable interest in relation to their possible health effects in human diets. The rapid and economical determination of soybean isoflavone concentrations is essential for the investigation and development of soybean health foods as well as the selection of soybean seeds with optimal isoflavone levels for such foods. Fourier transforms near infrared reflectance spectroscopy (FT-NIRS) calibrations were developed for the rapid and cost-effective analysis of isoflavones in soybean seeds. FT-NIRS measurements were carried out in quadruplicate for 50 soybean lines selected from the USDA Soybean Germplasm Collection. The selected soybean seeds provided a wide range of isoflavone concentrations (from 0.3 to 6.0 mg/g) that is...
Tipo: Presentation Palavras-chave: Biotechnology; Chemistry; Genetics & Genomics; Molecular Cell Biology; Plant Biology; Data Standards.
Ano: 2012 URL: http://precedings.nature.com/documents/7048/version/1
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