It was examined whether the physiological effects of high-amylose maize starch (HAMS) are influenced by hydroxypropylation. Rats were fed one of the following three diets: an AIN-93-based diet with waxy maize starch (WMS) as a starch source, or this diet with 150 g of WMS replaced by either HAMS or hydroxypropylated HAMS (HP-HAMS). The activities of amylase in bile-pancreatic juice and sucrose,...

HE normal product of fertilization in maize is a mature dormant seed T with a well developed embryo and starchy endosperm. All the many variations from this norm have been in a minus direction with regard to embryo or endosperm development and must be regarded as defective types. These defective types may be divided superficially into two groups on the basis of comparison of their growth to tha...

The effects of incorporating various montmorillonite nanoclays into wheat, potato, corn, and waxy corn starch samples were examined by rheology and X-ray diffraction. The nanoclays included the hydrophilic Cloisite NaC clay as well as the more hydrophobic Cloisite 30B, 10A, and 15A clays. Frequency sweep and creep results for wheat starch–nanoclay samples at room temperature indicated that the ...

Cereal Chem. 78(4):442–446 In this study, 3% aqueous high-amylose maize starch (Hylon VII) dispersions were heated to temperatures of 140–165°C. The onset and rate of gel formation was observed using a small-strain oscillation rheometer as a function of temperature from 90 to 25°C. The gel formation clearly began earlier in high-amylose starch paste preheated at lower temperatures, but the rate...

Abstract: The objective of this work was to select cassava (Manihot esculenta) genotypes from the Brazilian germplasm bank with a functionality similar that waxy starch. A total 881 were pre-selected using principal component analysis and hierarchical clustering, their industrial potential compared 7745-5WX WX-Maize maize clones, both used as references. Two stood out: BGM0036 BGM0083. Samples ...

Cross-linked esterified starch (CES) was prepared using a one-step method, where maize selected as the raw material, sodium trimetaphosphate cross-linking agent, and acetic anhydride esterifying respectively. A response surface experiment systematically conducted for analyzing correlation of experimental variables (cross-linked temperature, pH, reaction time, dosage) properties product (peak fi...

Slade et al. describe the application of TILLING to the identification of an allelic series of variants in the granule-bound starch synthase I (GBSSI) gene in hexaploid and tetraploid wheat. GBSSI or Waxy plays a critical role in the synthesis of amylose, which, in addition to amylopectin, comprises the starch fraction of the seed. Reduction or loss of GBSSI function results in starch with a de...