The effect of starch-protein interactions on the ability of linear starch chains to bind iodine was investigated in 4 types of semolina. Based on K/S (absorption/scattering coefficient) spectra, obtained after equilibration above K 2SO 4 and exposure to iodine vapor, and X-ray diffraction, semolina samples showed differences in chain mobility, iodine-binding capacity and crystalline order. After removing protein from the samples, starch exhibited a higher iodine-binding capacity, suggesting greater starch chain mobility, and low crystalline order. The results suggest that protein and/or starch-protein affect the packing arrangement of starch polymers within the granule.
Effect of iodine in semolina matrices / A. Marti, M.A. Pagani, K. Seetharaman. - In: JOURNAL OF CEREAL SCIENCE. - ISSN 0733-5210. - 56:2(2012 Sep), pp. 516-518.
Titolo: | Effect of iodine in semolina matrices |
Autori: | MARTI, ALESSANDRA (Primo) PAGANI, MARIA AMBROGINA (Secondo) |
Parole Chiave: | Iodine-polymer complex; Durum wheat semolina |
Settore Scientifico Disciplinare: | Settore AGR/15 - Scienze e Tecnologie Alimentari |
Data di pubblicazione: | set-2012 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.jcs.2012.04.005 |
Appare nelle tipologie: | 01 - Articolo su periodico |
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