Amylose content (AC) is a key quality trait in rice. A cross between Oryza glaberrima (African rice) and Oryza sativa (Asian rice) segregating for AC was analysed by sequencing bulks of individuals with high and low AC. SNP associated with the granule bound starch synthase (GBSS1) locus on chromosome 6 were polymorphic between the bulks. In particular, a G/A SNP that would result in an Asp to A...

Purpose: This investigation was carried out to determine the impact of Parkia biglobosa starch modification on the fractions, namely rapidly digestible starch (RDS), slowly digestible starch (SDS), and resistant starch (RS). Methods: Aqueous solution of sodium hypochlorite and potassium hydroxide was used to extract starch prior to modification by pyrodextrinization, cross-linking and heat-mois...

The prevailing model on transitory starch biosynthesis in source leaves assumes that the plastidial ADPglucose (ADPG) pyrophosphorylase (AGP) is the sole enzyme catalyzing the synthesis of the starch precursor molecule, ADPG. However, recent investigations have shown that ADPG linked to starch biosynthesis accumulates outside the chloroplast, presumably in the cytosol. This finding is consisten...

Starch is a staple food present in water-insoluble granules in many economically important crops. It is composed of two glucose polymers: the linear alpha-1,4-linked amylose and amylopectin with a backbone of alpha-1,4-glycosidic bonds and alpha-1,6-linked side chains. To dissolve starch completely in water it needs to be heated; when it cools down too much the starch solution forms a thermo-ir...

This paper presents a novel method for determining starch penetration through iodine staining and microscopic imaging of surface-sized fine paper cross-sections and image analysis of the resulting grayscale images. The more specific aim was to obtain quantitative starch penetration information in the z-direction of the sheet. The penetration information was determined through an image analysis ...