Galactomannan

Structural description

Among storage polysaccharides of higher plants, galactomannans constitute the second most abundant group. They are found especially in legume seeds, and have different degrees of side-chain substitution, molecular masses, and fine structures. Their structure consists of a main chain of (1-4)-linked β-D-mannopyranosyl units substituted by α-D-galactopyranosyl units and are distinguished by the content of D-mannopyranosyl units which ranges from 60 to 80%.

Galactomannans can also be found in Fungus species such as Aspergillus. Their related structure consists of a linear α-linked mannan core with side chains of an average of five   β(1-5) linked galactofuranosyl residues.

Activities and Uses

Galactomannan mainly found in leguminous seeds:

  • Fenugreek Gum, mannose:galactose Ratio~1:1
  • Guar Gum, mannose:galactose Ratio~2:1 – E412
  • Tara Gum, mannose:galactose Ratio~3:1 – E417
  • Carob Gum, mannose:galactose Ratio ~4:1 – E410

Recommended paper : S.P. Santander et al.; International Immunopharmacology, 11, (2011), 652–660.

Galactomannan

Galactomannan polysaccharides from Guar - 1 g

Galactomannan polysaccharides from Guar - 1 g
trait
MAN200

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β(1-4) linked D-mannopyranosyl units substituted by α(1-6)-D-galactopyranosyl units
[9000-30-0]
Galactomannan

Galactomannan polysaccharides from Carob (locust bean gum) - 1 g

Galactomannan polysaccharides from Carob (locust bean gum) - 1 g
trait
MAN201

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β(1-4) linked D-mannopyranosyl units substituted by α(1-6)-D-galactopyranosyl units
[9000-40-2]
Galactomannan

Galactomannan polysaccharides from Fenugreek - 100 mg

Galactomannan polysaccharides from Fenugreek - 100 mg
trait
MAN202

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β(1-4) linked D-mannopyranosyl units substituted by α(1-6)-D-galactopyranosyl units
[9000-40-2]
Galactomannan

Galactomannan OLS average DP 3 - 10 mg

Galactomannan OLS average DP 3 - 10 mg
trait
MAN213

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Mixture of β(1-4) linked D-mannose oligosaccharides with average DP3
Galactomannan

Galactomannan OLS average DP 5 - 10 mg

Galactomannan OLS average DP 5 - 10 mg
trait
MAN215

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Mixture of β(1-4) linked D-mannose oligosaccharides with average DP5
Galactomannan

Galactomannan OLS average DP 9 - 10 mg

Galactomannan OLS average DP 9 - 10 mg
trait
MAN219

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Mixture of β(1-4) linked D-mannose oligosaccharides with average DP9
Galactomannan

α-Digalactosyl mannopentaose - 10 mg

α-Digalactosyl mannopentaose - 10 mg
trait
MAN300

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Manβ1-4(Galα1-6)Manβ1-4(Galα1-6)Manβ1-4Manβ1-4Man
Galactomannan

α-galactosyl Mannobiose & Mannotriose - 10 mg

α-galactosyl Mannobiose & Mannotriose - 10 mg
trait
MAN400

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Manβ1-4(Galα1-6)Man + Manβ1-4Manβ1-4Man