P3889

Polygalacturonic acid

≥85% (titration), from oranges

• Formule linéaire : (C₆H₈O₆)_n
• Numéro CAS: 25990-10-7
• Numéro MDL: MFCD00131972
• Code UNSPSC : 12352201
• Nomenclature NACRES : NA.25

Propriétés

• Source biologique: oranges
• Essai: ≥85% (titration)
• Forme: powder
• Couleur: white to brown
• Pf: 60 °C
• Solubilité: aqueous NaOH: 1%, clear to hazy
• Température de stockage: room temp
• Chaîne SMILES: O1[C@@H]([C@@H]([C@H]([C@H]([C@H]1C(=O)O)O)O)O)O
• InChI: 1S/C6H10O7/c7-1-2(8)4(5(10)11)13-6(12)3(1)9/h1-4,6-9,12H,(H,10,11)/t1-,2+,3+,4-,6-/m0/s1
• Clé InChI: AEMOLEFTQBMNLQ-BKBMJHBISA-N

Description

Description générale

Polygalacturonic acid is composed of galacturonic acid unit arranged as a long polymer chain.[1] Methyl esters of polygalacturonic acid forms pectin.[2]

Application

Polygalacturonic acid has been used:

• in the preabsorption of 2F4 primary antibody solution[3]
• as a substrate to determine polygalacturonase activity[4]
• in the preparation of oligogalacturonates mixture which is used as a substrate to determine the specificities of different acetylesterases[5]

Polygalacturonic acid sequesters metal ions. It also produces gels in the presence of Ca²⁺ that can be used for drug release or to immobilize cells or enzymes for the production of biomolecules.

Actions biochimiques/physiologiques

In land plants, polygalacturonic acids are major components of cell wall polysaccharides (pectins). Bound polygalacturonase-inhibiting peptides (PGIP) protect pectin from degradation by fungal polygalacturonases.

Autres remarques

To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)