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Acetylated retrograded starch is one of the forms of resistant starch (RS3/4). Apart from the known resistance to amylolysis, it is characterized by the capability to form viscous pastes. Properties of this type of acetates are mainly determined by the degree of substitution and raw material used for esterification. The objective of this study was to produce starch acetates with a degree of substitution DS=0.1 from native potato starch and retrograded potato starch, and to compare selected properties of the resultant preparations. Retrograded starch was produced by freezing pastes with concentrations of 1, 4, 10, 18 or 30g/100g. Starch acetates with a degree of substitution DS∼0.1 were produced from native or retrograded starch through acetylation with various doses of acetic acid anhydride (6.5-26.0cm(3)/100g of starch). The preparations produced were characterized by various properties. A positive correlation was observed between resistance to amylolysis and the number of acetyl groups at C2 and C3 the produced starch acetates.
Department of Food Storage and Technology, Wrocław University of Environmental and Life Science, Chełmońskiego 37/41, 51 - 630 Wrocław, Poland.
This article was published in the following journal.
Name: Carbohydrate polymers
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Method of tissue preparation in which the tissue specimen is frozen and then dehydrated at low temperature in a high vacuum. This method is also used for dehydrating pharmaceutical and food products.
Electrophoresis in which a starch gel (a mixture of amylose and amylopectin) is used as the diffusion medium.
An effect usually, but not necessarily, beneficial that is attributable to an expectation that the regimen will have an effect, i.e., the effect is due to the power of suggestion.
Homogeneous liquid preparations that contain one or more chemical substances dissolved, i.e., molecularly dispersed, in a suitable solvent or mixture of mutually miscible solvents. For reasons of their ingredients, method of preparation, or use, they do not fall into another group of products.
The study of the structure, preparation, properties, and reactions of carbon compounds. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism ...