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81325

Sigma-Aldrich

Polygalacturonic acid

≥90% (enzymatic)

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About This Item

Linear Formula:
(C6H8O6)n
CAS Number:
25990-10-7
MDL number:
MFCD00131972
UNSPSC Code:
12352201
NACRES:
NA.25

biological source

synthetic

Assay

≥90% (enzymatic)

form

powder

mol wt

Mr 25000-50000(lit.)

color

white to light beige

mp

60  °C ((140 °F ))

storage temp.

room temp

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

InChI key

AEMOLEFTQBMNLQ-BKBMJHBISA-N

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Application

Polygalacturonic acid may be used to identify, differentiate and characterize plant cell wall degrading polygalacturonase(s) from fungi.

Biochem/physiol Actions

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.

Other Notes

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Sigma-Aldrich

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Wayne M Jurick et al.
Mycologia, 104(3), 604-612 (2012-01-14)
A polygalacturonase (PG) isozyme was isolated from Penicillium solitum-decayed Anjou pear fruit and purified to homogeneity with a multistep process. Both gel filtration and cation exchange chromatography revealed a single PG activity peak, and analysis of the purified protein showed
Túlio Ítalo S Oliveira et al.
International journal of biological macromolecules, 101, 1-8 (2017-03-21)
Pectin and cellulose nanocrystals (CNCs) isolated from banana peels were used to prepare films. The effects of a reinforcing phase (CNCs) and a crosslinker (citric acid, CA) on properties of pectin films were studied. Glycerol-plasticized films were prepared by casting
Wayne M Jurick et al.
Phytopathology, 100(1), 42-48 (2009-12-09)
A polygalacturonase (PG) was extracted and purified from decayed tissue of 'Anjou' pear fruit inoculated with Penicillium expansum. Ammonium sulfate precipitation, gel filtration, and cation exchange chromatography were used to purify the enzyme. Both chromatographic methods revealed a single peak
J Zhang et al.
Phytopathology, 87(10), 1020-1025 (2008-10-24)
ABSTRACT Production of polygalacturonase (PG), a cell wall-degrading enzyme, by Phomopsis cucurbitae (latent infection fungus) was studied in relation to different carbon sources and various stages of cantaloupe fruit development. P. cucurbitae produced multiple PG isozymes both in vitro and
Sebastián Torres et al.
Enzyme and microbial technology, 48(2), 123-128 (2011-11-25)
We report a new colorimetric assay to quantify endo-polygalacturonase activity, which hydrolyzes polygalacturonic acid to produce smaller chains of galacturonate. Some of the reported polygalacturonase assays measure the activity by detecting the appearance of reducing ends such as the Somogyi-Nelson
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