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GrainGenes Reference Report: IFT-39-183

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Reference	IFT-39-183
Title	Use of scanning electron microscopy to indicate the similarities and differences in pseudocereal and cereal proteins
Journal	International Journal of Food Science and Technology
Year	2004
Volume	39
Pages	183-189
Author	Gorinstein S [ Show all 11 ]
Abstract	Summary: Isolated and separated protein fractions from cereal and pseudocereal grains were analysed by sodium dodecyl sulphate polyacrylamide gel electrophoresis and scanning electron microscopy. Prolamin, the main storage protein in cereal such as maize, showed a difference in electrophoretic patterns and fine structure in comparison with those from amaranth and soybean. In contrast glutelins from amaranth, soybean and maize showed some similarity in the distribution of protein bands and in microstructure. Amaranth and soybean were closely similar in distribution of protein fractions and their microscopic structure. As an addition to chemical analyses, microscopy helped to understand and visualize structural changes and textural differences in protein fractions. Pseudocereals can be used as a nutritive substitute of some cereals in functional foods
Keyword	[ Hide all but 1 of 54 ] amaranth amaranth grain cereal cereals corn corn protein cruentus difference electron-microscopy electrophoresis electrophoretic separation extraction fine-structure foods fraction gel-electrophoresis globulin glutelin glutenins grain grain protein grains growing rats isolated protein fractions main storage proteins maize maize endosperm microstructure nitrogen nutritive substitution nutritive value patterns plant extracts polyacrylamide gel electrophoresis polyacrylamide-gel prolamins protein protein fraction protein isolates proteins quality scanning electron microscopy scanning-electron-microscopy seed proteins seeds similarity sodium soybean soybeans storage protein storage proteins structural changes structure texture

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