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About Production of Carrageenans

About Production of Carrageenans

Well, Carrageenan were actually introduced in 1930s on an industrial scale. they were used in China for the first time in around 600 B.C. and it was also used in Ireland in around 400 A.D. Carrageen gelatine can be easily prepared at home with the help of traditional recipes and the recipe is available in Diderot’s Encyclopedie and was used for years together.

After harvesting is over the seaweed is basically dried, baled and passed on to the manufacturer. Then the seaweed is ground, passed through a sieve to eliminate the impurities like sand and later it is washed completely. After it is washed, it goes through a treatment that includes a solution known as hot alkali, the cellulose is eliminated from carrageenan by filtration and centrifugation. Later the solution obtained goes through evaporation to concentrate it. Then it is dried and ground. Pollution in Ganges river of India

The industrial processing is carried out in following three steps

Semi-refined

It is carried out using E. spinosum and E. cottonii. The raw weed is sorted out and unrefined contaminants are eliminated by hand. Next, the weed is washed properly to remove sand and salt and cooked using hot alkali to increase the strength of the gel. Now, the cooked weed is first washed, dried and then grinded. E. spinosum goes through a mild cooking cycle as it gets dissolved effortlessly. The end product is known as semi-refined carrageenan.

Refined

The main difference in the whole refining process is that the ingredient is dissolved first and filtered to eliminate cell wall waste. It (carrageenan) is then is triggered from the clear solution either with the help of potassium chloride or isopropanol.

Mixed processing

It is a composite technology wherein seaweed is treated diversely same as it is done in semi-refined process, but to hold back the dissolution high levels of alcohol is used.

 

 

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