Description

Polygalacturonic Acid is a high-purity, linear polymer of α-(1→4)-linked D-galacturonic acid units, serving as the primary structural component of pectin. This compound is essential for its role as a model substrate in enzymatic studies and as a key raw material in the production of oligogalacturonides, which are valuable bioactive molecules. It is critically needed by research institutions, diagnostic kit manufacturers, and biotechnology companies focused on plant biology, food science, and the development of functional ingredients.

Application

• Enzymatic Substrate: Primary substrate for the assay and characterization of pectinase, polygalacturonase, and pectate lyase enzymes in industrial and research settings.
• Diagnostic Reagents: Used in the formulation of diagnostic kits and reagents for measuring pectinolytic enzyme activity in various samples.
• Biochemical Research: Serves as a standard and model compound in plant cell wall studies, carbohydrate chemistry, and microbiology research.
• Functional Ingredient Production: A starting material for the enzymatic or chemical hydrolysis to produce oligogalacturonides, which have prebiotic and elicitor activities.
• Food Science & Technology: Employed in studies related to pectin degradation, fruit softening, and the optimization of juice clarification processes.
• Quality Control: Acts as a reference standard in quality control laboratories for the pharmaceutical and food industries to calibrate methods for pectin analysis.

Basic Information

Product Name	Polygalacturonic Acid
CAS No.	25249-06-3
Molecular Formula	(C6H8O6)n
Molecular Weight	Variable (Polymer)
Synonyms	Pectic Acid; Galacturonic Acid Polymer; Poly(1,4-α-D-galactopyranosyluronic acid); Pectin Polygalacturonic Acid; α-D-Galacturonic Acid Homopolymer; Pectic Acid, Polygalacturonic Acid Grade; (1→4)-α-D-Galacturonan; PGA
EINECS	Contact for details

Quality Control

Our Polygalacturonic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency, meeting the high standards required for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing assay, identification, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to prevent absorption of atmospheric moisture, which can affect stability and performance.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Assay (as Galacturonic Acid)	≥ 85.0% (by Titration)
Loss on Drying	≤ 12.0 %
Residue on Ignition (Sulfated Ash)	≤ 5.0 %
pH (1% Solution)	2.5 - 4.0

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.