Cereal starch amylose/amylopectin (AM/AP) is critical in functional properties for food and industrial applications. Conventional methods of AM/AP are time consuming and labor intensive making it difficult to screen the large sample sets necessary for evaluating breeding samples and investigating environmental impact on starch development. The objective was to adapt and optimize the iodine bind...

Abstarct: This study was carried out to compare the binding effects of rice and wheat starches with that of the official starch; maize starch BP. Granule properties such as angle of repose, moisture content, bulk and tapped densities, Hausner’s ratio, Carr’s index and tablet properties which included weight uniformity, friability, disintegration times, and dissolution rates using standard metho...

Etiopathogenesis of pulmonary granulomatous lesions can be very varied. Pathologists find pulmonary granulomatous lesions in autopsies frequently. Diagnostics of pulmonary granulomatous lesions is based on anamnesis data, clinical examinations and morphological changes. In some cases, especially in long-term ill patients, morphological finding remains the only way to explain the case. We provid...

Starches from various botanical origins (rice, maize and potato starches) were cross-linked in the presence of epichlorohydrin (EPI), respectively. Then, the cross-linked starches were further oxidized with sodium hypochlorite (NaOCl, 2.5% w/w) to obtain oxidized cross-linked starches (OCS). The chemically modified methods on the physicochemical properties of different starches were investigate...

Sucrose is not only the carbon source for starch synthesis, but also a signal molecule. Alone or in coordination with ABA, it can regulate the expression of genes involved in starch synthesis. To investigate the molecular mechanisms underlying this effect, maize endosperms were collected from Zea mays L. B73 inbred line 10 d after pollination and treated with sucrose, ABA, or sucrose plus ABA a...

Interlaboratory performance statistics was determined for a method developed to measure the resistant starch (RS) content of selected plant food products and a range of commercial starch samples. Food materials examined contained RS (cooked kidney beans, green banana, and corn flakes) and commercial starches, most of which naturally contain, or were processed to yield, elevated RS levels. The m...

The opaque-2 (o2) mutation of maize increases lysine content, but the low seed density and soft texture of this type of mutant are undesirable. Lines with modifiers of the soft kernel phenotype (mo2) called "Quality Protein Maize" (QPM) have high lysine and kernel phenotypes similar to normal maize. Prior research indicated that the formation of vitreous endosperm in QPM might involve changes i...

Soluble starch synthase and starch-branching enzymes in extracts from kernels of four maize genotypes were compared. Extracts from normal (nonmutant) maize were found to contain two starch synthases and three branching enzyme fractions. The different fractions could be distinguished by chromatographic properties and kinetic properties under various assay conditions. Kernels homozygous for the r...

In maize kernels, mutations in the gene sugaryl (sul) result in (1) increased sucrose concentration; (2) decreased concentration of amylopectin, the branched component of starch; and (3) accumulation of the highly branched glucopolysaccharide phytoglycogen. To investigate further the mechanisms of storage carbohydrate synthesis in maize, part of the sul gene locus and a cDNA copy of the sul tra...

The disintegrant potential of native starches of five new cassava (Manihot esculenta Crantz.) varieties developed by the Crops Research Institute of Ghana (CRIG) was studied in paracetamol tablet formulations. The yield of the starches ranged from 8.0 to 26.7%. The starches were basic (pH: 8.1-9.9), with satisfactory moisture content (≤15%), swelling capacity (≥20%), ash values (<1%), flow prop...