Cassia gum is grown in wet and tropical climates and considered a weed and hardly cultivated. It is manufactured from the endosperm of Senna obtusifolia or Cassia obtusifolia or Cassia Tora or Cassia Occidentalis. Its main use comes in the form of a gelling or thickening agent in pet foods.
The composition of Cassia gum is at least 75% polysaccharide and a linear backbone chain of mannose with side galactose units The ratio of Mannose : Galactose is about 5: 1.
Cassia gum can form gels with colloids like Carrageenan and Xanthan due to its retorting nature and increasingly used in the food and pet applications.
This subtropical weed Cassia Gum is known by different names globally.:-
||Gomme de cassia
||Goma de cassia
||Guma de cassia
Splitting the Cassia Tora Seeds
The Cassia Tora seed consists of an outer husk, an endosperm, an ovary, or a germ. Only the endosperm or split, which contains mainly polysaccharides, is used for the production of cassia gum.
The husk and the germ are removed completely in the de-husking process. Temperature is applied in removing the husk and the germ by a heating process. The heating process removes the endosperm and since the endosperm happens to be bigger in size it is easily removable and cleanable.
The Cassia Tora seeds are roasted and the husk and the germ get separated after getting brittle and hard. Mechanical stress pulverizes husk and germ and the powder is separated from the intact split by sieving. If any trace remains on the husk and the germ a series of cleaning procedures are applied to remove it completely.
The Methodology of Manufacturing Cassia Gum Powder
All the Cassia seeds are de-husked and de-germed by milling and screening of the endosperm.
It is high molecular weight (approximately 200,000 – 300,000) polysaccharides composed of galactomannans; the mannose:galactose ratio is about 5:1. Semi-refined Cassia gum normally containing detectable amounts of anthraquinones.
The raw Cassia Tora seed is then undergone through a series of mechanical steps or procedures to remove any unwanted farm particle or stone.
Again a de-husking and splitting process is done.
The thermal treatment results in splits which are then grounded to form particle sizes.
Method of Manufacturing cassia gum powder
- This cassia gum powder dissolves completely in water and different viscosity can be achieved in aqueous base solutions.
- It is made up of at least 75 % polysaccharide consisting primarily of a linear chain of 1,4-β-D-mannopyranose units with 1,6 linked α-D-alactopyranose units.
- The ratio of mannose to galactose is about 5:1.
- It forms a gel in combination with carrageenan.
- On its own, neither does Cassia gum nor xanthan gum have the ability to form a firm thermoplastic gel, but when combined they can form cohesive gels.
- It is used as a gelling agent, thickening additive, and stabilizing additives.
Cassia Gum Powder Number
|CAS No. (Galactomannan)
|EEC No. of
Gelling properties of refined cassia gum powder
Refined cassia gum in a high side of galactose side chains hampers the gelling effect with anionic polymers. Hence smaller amounts of hydrocolloid blend containing the gum are needed to achieve the desired effect as compared to carrageenan alone or combinations of carrageenan with other related galactomannans.
Cassia Gum is mainly used as a
- Gelling Agent
- Bonding agent
Cassia Tora Powder international listings
||KE – 17406