Starch is the major storage carbohydrate in higher plants, with many important functions. In photosynthesizing leaves, starch accumulates during the day and is remobilized at night to support continued respiration, Suc export, and growth in the dark (Geiger and Servaites, 1994). In this context, starch has been identified as a major integrator in the regulation of plant growth to cope with cont...

Starch is the major storage carbohydrate in higher plants, with many important functions. In photosynthesizing leaves, starch accumulates during the day and is remobilized at night to support continued respiration, Suc export, and growth in the dark (Geiger and Servaites, 1994). In this context, starch has been identified as a major integrator in the regulation of plant growth to cope with cont...

ABSTRACT Rice is one of the main foods consumed by half world’s population. The rice crop requires plenty water, but upland cultivated in a non-flooded environment, although its productivity lower than that lowland rice. grains mostly consist starch, which synthesized from non-structural carbohydrates imported vegetative organs. long-term storage plays remarkable role maintaining supply photoas...

Phosphate esters are responsible for valuable and unique functionalities of starch for industrial applications. Also in the cell phosphate esters play a role in starch metabolism, which so far has not been well characterized in storage starch. Laforin, a human enzyme composed of a carbohydrate-binding module and a dual-specificity phosphatase domain, is involved in the dephosphorylation of glyc...

BACKGROUND Landoltia punctata is a widely distributed duckweed species with great potential to accumulate enormous amounts of starch for bioethanol production. We found that L. punctata can accumulate starch rapidly accompanied by alterations in endogenous hormone levels after uniconazole application, but the relationship between endogenous hormones and starch accumulation is still unclear. R...

Fifteen, 1-year-old Populus maximowiczii Henry x P. nigra L. 'MN9' trees were decapitated and allowed to sprout. After 8 weeks, all had 6 to 10 coppice shoots. All shoots, except the tallest (dominant) shoot, were removed from five of the trees (pruned treatment), and shoot growth, gas exchange and carbohydrate status were compared in the pruned and unpruned trees. Although photosynthetic rate ...

Starch is the most abundant storage carbohydrate produced in plants. The initiation of transitory starch synthesis and degradation in plastids depends mainly on diurnal cycle, post-translational regulation of enzyme activity and starch phosphorylation. For the proper structure of starch granule the activities of all starch synthase isoenzymes, branching enzymes and debranching enzymes are neede...

A recent issue of the British Journal of Nutrition reflects a marked change in the importance we now attach to the role of dietary carbohydrates in both managing and retarding the development of non-communicable diseases, with four commentaries: Choosing your carbohydrates to prevent diabetes (Mathers, 2002); Low carbohydrate does not mean low glycaemic index! (Wolever, 2002); Diet, satiety and...

Starch is a carbohydrate or polysaccharide consisting of large number glucose units linked through glycosidic bonds and containing different amounts amylose amylopectin as macromolecules. modification can be done physically, chemically, enzymatically. The process chemical starch aims to separate the long chains from polymer molecules in order reduce high viscosity unmodified solution thus maxim...

The extraction of Canna edulis Ker. starch from its rhizome was performed using 2 different types of press (hydraulic press and screw press) and with the addition of Na-metabisulphite and NaOH (in the range of concentration 100 5000 ppm each). The optimum condition for this process was determined by Central Composite Design of experiment and the statistical calculation was solved by Design-Expe...