Starches from six wild rice cultivars were studied for their chemical structures and physicochemical properties and compared with a long-grain rice starch. The six wild rice starches were similar in morphological appearance, X-ray diffraction patterns, swelling power, and water solubility index but different in amylose content, beta-amylolysis limit, branch chain length distribution, thermal pr...

Commercial high-amylose com, ordinary com and potato starches 'were fully acetyl"ted by reacting the starches at 123°C for 5 h in fourfold quantities of acetic anhydride to which 11 010 (w;'w 5t"rch) of sodium hydroxide catalyst had been added as 50 010 aqueous solution. Intrinsic viscosities of the starches regenerated from their esters 'were slightly lower than the 'values for the correspondi...

Standard maize (SMS) and waxy maize starch (WMS) were hydrothermally treated at their residual moisture level (~12 %) by Instantaneous Controlled Pressure Drop process in order to obtain pre-gelatinised starches in a single step. The effect of two parameters of this process, namely the steam pressure level and processing time, on the structural and rheological properties of the native maize sta...

Aside from being used as stabilizing agents in many processed foods, chemically modified starches may act as functional dietary ingredients. Therefore, development of chemically modified starches that are less digestible in the upper intestinal segments and promote fermentation in the hindgut receives considerable attention. This study aimed to investigate the impact of an enzymatically modifie...

Tertiary amine-modified corn starches were converted to their basic or hydroxide form and combined with carboxylated butadiene-acrylonitrile copolymer and butadiene-styrene-sulfonic acid polymer to produce ionically bonded filler-elastomer composites. An increasing percentage of the elastomer fraction in the starch-elastomer composite is insolubilized as the starch-to-elastomer ratio increases....

Fluid resuscitation is a fundamental part of the care of a critically ill patient.(1) Most patients admitted to intensive care units will eventually undergo volume challenge. The optimum type of fluid resuscitation product has been debated for the last four decades.(1,2) Crystalloid solutions are widely available and affordable and are therefore used as the basis of the standard volume expansio...

there is some evidence on the effects of organic acids on the functional properties of native starches. however, there is little information on such effects on modified starches. the main objective of this study was to determine the effects of l-ascorbic acid (150 mg kg-1, as the permitted level in bakery products) on functional properties of cross-linked wheat starch. once the starch was treat...

Native starches contain variable amounts of phosphorus. Samec and coworkers (1, 2) first showed that the phosphorus-containing components are not identical in all starches. In cereal starches most, if not all, of the phosphorus is contained in phosphatides which are loosely bound to the polysaccharide. Other starches such as potato, arrowroot, tapioca, and sago contain phosphorus esterified wit...