Polysaccharide Content
Polysaccharide Content - Related Videos
10:03
Comparative Study on the Polysaccharide Contents and Antioxidant Activities of Hippophae rhamnoides subsp. sinensis and Hippophae gyantsensis
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2025
This study compared the polysaccharide contents of Hippophae rhamnoides subsp. sinensis Rousi and Hippophae gyantsensis (Rousi) Y. S. Lian obtained through hot water extraction and quantified through phenol-sulfuric acid colorimetry. We also investigated in vitro antioxidant activities of polysaccharides from these two Hippophae species through 2,2-diphenyl-1-picrylhydrazyl free radical scavenging experiments.
01:26
Biosynthesis of Polysaccharides
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2025
Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...
15:04
A Neuronal and Astrocyte Co-Culture Assay for High Content Analysis of Neurotoxicity
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Cited by 46 •
2009
This article describes a novel protocol and reagent set designed for sensitive measurement of neurotoxic effects of compounds and treatments on co-cultures of neurons and astrocytes using high content analysis. Results demonstrate that high content analysis represents an exciting novel technology for neurotoxicity assessment.
01:15
Cellulose and Pectic Polysaccharides
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2023
Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth. Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds. As a cell matures, its cell wall specializes according to its type. For example, the parenchyma cells of...
07:04
Determination of the Glycogen Content in Cyanobacteria
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Cited by 26 •
2017
Here, we present a reliable and easy assay to measure the glycogen content in cyanobacterial cells. The procedure entails precipitation, selectable depolymerization, and the detection of glucose residues. This method is suitable for both wildtype and genetically engineered strains and can facilitate the metabolic engineering of cyanobacteria.
FAQs
Hydrolysis breaks the glycosidic bonds connecting monosaccharide units, converting polymeric carbohydrate into released sugars that can be quantified. This step makes the carbohydrate signal accessible to a calibrated colorimetric or chromatographic measurement. Comparing the resulting quantity across samples helps assess composition and supports evaluation of extraction or purification outcomes.
A quantity measurement gives a compositional basis for judging how much carbohydrate polymer is present in the material being studied. Researchers can use values from comparable samples to examine whether extraction or purification changed the carbohydrate fraction. The result therefore supports purity assessment without replacing broader chemical characterization.
The measured amount can be related to functional properties of a material, including solubility and viscosity, and may also be considered alongside biological activity. This connection helps chemistry researchers interpret how carbohydrate composition relates to behavior in plant materials, foods, pharmaceuticals, and biomaterials rather than treating the measurement as an isolated number.
Calibration gives an analytical measurement a quantitative basis, allowing a colorimetric or chromatographic result to be interpreted as polysaccharide quantity. That connection makes results more useful for comparing samples. In practice, calibrated measurements support composition assessment and evaluation of changes caused by extraction or purification.
An analysis commonly begins with the material of interest, followed by hydrolysis to release sugars from the polysaccharide fraction. The released sugars are then quantified using a calibrated colorimetric or chromatographic method. Researchers can compare the resulting measurements across samples to characterize composition, purity, or changes during processing.
Researchers can measure samples associated with an extraction or purification step, then compare the polysaccharide quantities obtained. A change in the measured carbohydrate fraction provides evidence that processing altered sample composition. This use makes the method valuable for monitoring material preparation, especially when interpreted together with other chemical information.
Applications extend across plant materials, foods, pharmaceuticals, and biomaterials. In each case, the measurement helps characterize carbohydrate composition and can support comparisons among samples or processing stages. The same analytical logic therefore serves chemically different materials while preserving a common focus on polysaccharide quantity and its relationship to material properties.