Hydrogels Based on Carrageenan Extracted from Kappaphycus alvarezii

Preparation of hydrogel based on carrageenan extracted from Kappaphycus alvarezii was conducted with film immersion in glutaraldehyde solution (GA 4%w/w) for 2min and then followed by thermal curing at 110°C for 25min. The method of carrageenan recovery strongly determines the properties of crosslinked carrageenan. Hydrogel obtained from alkali treated carrageenan showed higher swelling ability compared to hydrogel from nonalkali treated carrageenan. Hydrogel from alkali treated showed the ability of sensitive to pH media.

Authors:

• S. Distantina
• Rochmadi
• M. Fahrurrozi
• Wiratni

Keywords:

• Hydrogel
• carrageenan
• swelling
• alkali treated.

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