Carrageenan is Derived from Seaweed

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INTRODUCTION TO CARRAGEENAN
The carrageenan is from family of linear sulphate polysaccharides which is derived from seaweed (Falshaw et al., 2001). Carrageenan is a general name for polysaccharides extracted from certain kinds of red algae, a seaweed where is abound in coast of North America and Europe which are built up, in contrast to agar, from D-galactopyranose units. The name ‘Carrageenan’ is derived from the Chondrus crispus species of seaweed known as Carrageen Moss or Irish Moss in England, and Carraigin in Ireland. Carraigin has been used in Ireland since 400 AD as a gelatin and as a home remedy to cure coughs and colds. 1(a) 1(b)
Figure 1(a) and 1(b) shows Chondrus crispus seaweed native carrageenan from red seaweed algae (source www.algaebase.org)
The carrageenan is extracted from different species of marine red algae of class Rhodophyceae sp. are water-soluble, anionic and linear polysaccharides. The red seaweed is also belonging to the Gigartina, Hypnea, Eucheuma, Chondrus and Iridaea species. Water souble of carrageenan is referred to sulphate group in its structure (Relleve et al., 1999). Carrageenans occur as matrix material in numerous species of red seaweeds wherein they serve a structural function analogous to that of cellulose in land plants. Chemically they are highly sulfated galactans. Due to their half-ester sulfate moieties they are
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