Acidic Polysaccharides
|
| Catalog Number |
Product Name |
Pack Size |
| PS100 |
Agar
A sulphated galactan from the red seaweeds (Gelidium spp.). The major gel forming component agarose consists of a linear chain of sequences of (1-3) linked β-D-galactopyranosyl units and (1-4 ) linkages to 3,6-anhydro-α-D-galactopyranosyl units. Agar is primarily used as a plating gel for microbial cultures. |
1g
5g
100g
|
| PS101 |
Sodium Alginate
Sodium salt of a polysaccharide obtained from the brown seaweeds (eg Laminaria hyperborea, Laminaria digitata, Ascophyllum nodosum). The chemical structure consists of blocks of polymannuronic acid (poly M), polyguluronic acid (poly G) and alternating blocks of the two uronic acids (poly MG). The main use for alginate is in textile printing where it is used in the printing of cottons with reactive dyes as a thickener. It is also used as a thickener in the food industry. |
1g
5g
100g
|
| PS102 |
Alginic acid
Acid form of a polysaccharide obtained from the brown seaweeds (eg Laminaria hyperborea, Laminaria digitata, Ascophyllum nodosum). The chemical structure consists of bocks of polymannuronic acid (poly M), polyguluronic acid (poly G) and alternating blocks of the two uronic acids (poly MG). |
1g
5g
100g
|
| PS103 |
Propylene Glycol Alginate
Propylene glycol ester of alginate produced by reacting it with with propylene oxide. It is mainly used as a thickener in ice creams. |
1g
5g
100g
|
| PS104 |
Bacterial Alginate
An alginate produced by the fermentation of Azotobacter vinelandii or Pseudomonas mendocina. The chemical structure consists of blocks of polymannuronic acid (poly M), polyguluronic acid(poly G) and alternating blocks of the two uronic acids (poly MG). Unlike the alginate from seaweed this polysaccharide is acetylated. Samples of this material have not been treated to remove bacterial cells. |
1g
5g
20g
|
| PS105 |
Gum arabic
Gum arabic is an exudate gum picked from Acacia trees growing in arid regions (typically Acacia Senegal and Acacia Laetia). The polysaccharide is branched with a main chain of (1-3) linked β -D-galactopyranosyl units with side chains of (1-3) β -Dgalactopyranosyl units joined to it by (1-6) links. The side chains are 2-5 units in length. Both the main chain and the side chains have attached units of α-L-arabinofuranosyl, α-L-rhamnopyranosyl, β-D-glucuronopyranosyl and 4-O-methyl-β-D-glucuronopyranosyl units. |
1g
5g
100g
|
| PS106 |
λ-Carrageenan
Lambda-Carrageenan is a non-gelling sulphated galactan extracted from red seaweed (typically Gigartina stellata and Chondrus Crispus ). The structure of all carrageenans consists of a strictly alternating masked repeating unit of (1-3) linked α-D-galactose and (1-4) linked β-D-galactose. λ-Carrageenan has the α-linked unit 2-6 disulphated and the β-linked unit 2 sulphated. |
1g
5g
100g
|
| PS107 |
κ-Carrageenan
Kappa-Carrageenan is a gelling sulphated galactan extracted from red seaweed (typically Gigartina stellata and Chondrus Crispus ). The structure of all carrageenans consists of a strictly alternating masked repeating unit of (1-3) linked α-D-galactose and (1-4) linked β-D-galactose. The α-linked galactose occurs as a 3,6-anhydro unit and the β-linked sugar occurs as the 3-sulphate. |
1g
5g
100g
|
| PS108 |
ι-Carrageenan
Iota-Carageenan is a gelling sulphated galactan extracted from red seaweed (typically Gigartina stellata and Chondrus Crispus ).The structure of all carrageenans consists of a strictly alternating masked repeating unit of (1-3) linked α-D-galactose and (1-4)linked β-D-galactose. The α-linked galactose occurs as a 3,6-anhydro-2-sulphate unit and the β-linked sugar occurs as the 3-sulphate. |
1g
5g
100g
|
| PS111 |
Fucoidan
Fucoidan is a fucan sulphate occurring in brown marine algae ( Phaeophyta, typically Ascophyllum nodosum and Laminariadigitata) and has been shown to have anti-coagulant activity. The main constituents are α (1-4) and α(1-2) linked L-fucose sulphates although galactose also occurs and there are many variations of the basic structure found in different species of Phaeophyta. |
10mg
100mg
5g
|
| PS112 |
Fucogalactan (GFS)
Fucogalactan (GFS) is a polysaccharide isolated and purified from the brown seaweed Undaria pinnatifida. The polysaccharide is a sulphated galactose containing fucan which can be supplied in a range of molecular weights namely (a) 2,000,000, (b) 100,000, (c) 50.000 and (d) 25,000. Currently, GFS is under investigation for possible therapeutic properties to combat a number of disease states including breast cancer, herpes simplex virus, HIV (aids), influenza virus, cytomegalovirus and varicella virus. |
1g
5g
100g
|
| PS113 |
Gellan Gum
Gellan is a microbial polysaccharide produced by Pseudomonas elodea and produces gels having similar properties to agar. The molecular structure of gellan gum is a linear chain based on repeating glucose, rhamnose and glucuronic acid units. In its native, or high acyl form, two acyl substituents - acetate and glycerate - are present. Both substituents are located on the same glucose residue, and on average, there is one glycerate per repeat and one acetate per every two repeats. In low acyl gellan gum, the acyl groups are removed completely. Deacylation provides gellan gum in this low acyl form. The acyl groups have a profound influence on gel characteristics. The high acyl form produces soft, elastic, non-brittle gels, whereas the low acyl form produces firm, non-elastic, brittle gels.
|
POA (price on apllication) |
| PS114 |
Gum Ghatti
Gum Ghatti is an exudate gum from the tree Anoggeissus latifolia found in India and Sri Lanka. Applications are similar to Gum Arabic in the food and pharmaceutical industries where it is used as an emulsifier. The polysaccharide has a backbone chain of (1-6)-linked b-D-galactopyranosyl units with some (1-4)-D-glucopyranosyluronic acid units, some joining (1-2)-D-mannopyranosyl units, and some L-arabinofuranose units.
|
10g |
| PS117 |
Gum Karaya
Gum Karaya is exuded from Sterculia urens, a bushy tree found in dry regions of North India. Due to its extensive swelling capacity in water it is used as a laxative and as a denture adhesive. The structure consists of D-galactose, D-glucuronic acid and L-rhamnose but the detailed molecular structure is still incompletely known.
|
1g
5g
100g
|
| PS118 |
Pectin
D-galacturonic acid is the principal constituent of pectin, but some neutral sugars are also commonly present in pectin. The D-galacturonic acid units are linked together by alpha-1.4 glycosidic linkages. The polygalacturonic acid is partly esterified with methyl groups and the free acid groups may be partly or fully neutralized with sodium, potassium or ammonium ions. The ratio of esterified galacturonic acid groups to total galacturonic acid groups - termed the degree of esterification (DE) -has vital influence on the properties of pectin, especially the solubility and the gel forming characteristics.
|
100g
500g
|
| PS119 |
Psyllium Seed Gum
Psyllium seed gum comes from plants of the Plantago genus and is cultivated mainly in The Mediterranian and in India. Psyllium has been used for many years medical applications and more recently there has been a resurgency of interest because it has been seen as a soluble dietary fibre. The proposed structure is of a backbone of D-xylopyranosyl units linked (1-4) and (1-3) with the 4-linked units bearing side chains. The side chains consist of α-L-arabinofuranosyl units linked (1-3) and (1-2) and β-D-xylopyranosyl units linked (1-3) and (1-2) and the α-D-Galap-(1-2)-α-L-Rhap aldobiuronic acid units linked (1-2) to the main chain. |
1g
5g
100g
|
| PS120 |
Gum Tragacanth
Gum Tragacanth is an exudate gum from species of Astragalus trees mainly grown in Iran and Turkey. Tragacanth finds applications as an effective emulsifying and thickening agent in the food and pharmaceutical industries. The gum is a slightly acidic salt consisting of two fractions namely the water soluble tragacanthin and the fraction bassorin which swells in water to form a gel. Water soluble tragacanthin is reported as a branched arabiogalactan which is soluble in 70% ethanol. The acidic bassorin has a chain of (1-4)-linked α-D-galacturonic acid units some of which are substituted at O-3 with β-D-xylopyranosyl units and some of these being terminated with galactose or fucose. |
1g
5g
100g
|
| PS121 |
Welan Gum
Welan gum is a microbial polysaccharide produced by a species of Alcaligenes and shows interesting rheological properties of use in the oil and agricultural industries. The structure is similar to Gellan based on repeating glucose, rhamnose and glucuronic acid units but with a single side chain of either an α-L-rhamnopyranosyl or an α-Lmannopyranosyl unit linked (1-3) to the 4-O-substituted β-D-glucopyranosyl unit in the backbone. |
1g
5g
100g
|
| PS122 |
Xanthan Gum
Xanthan gum is a microbial polysaccharide produced by Xanthomonas campestris. It has unique rheological and gel forming properties and finds many applications particularly in the food and oil industries. The structure of xanthan is based on a cellulosic bacbone of β-(1-4)-linked glucose units which have a trisaccharide side chain of mannose-glucuronic acid-mannose linked to every secong glucose unit in the main chain. Some teminal manoose units are pyruvylated and some of the inner mannose units are acetylated. |
1g
5g
100g
|
Catalog 
