Characteristics of Rapid Visco Analyzer Carrageenan Extract with Enzymatic Pretreatment of Kappaphycus striatum

Carrageenan is a polysaccharide compound extracted from red seaweed and widely used by food, cosmetic, advanced materials industries because of its good properties as an environmentally friendly stabilizer. extraction generally uses alkaline treatment for one full day, where the to obtain carrageenan quality with gel characteristics. The use cellulase enzymes thought accelerate desulfuration process seaweed, are break down cellulose in cell walls. By using rapid visco analyzer (RVA), was tested see pattern viscosity value. This study aims determine effect enzymatic pretreatment on profile shorter alkalization compared commonly industry. results showed that before KOH would produce value 272-360 cP, whereas NaOH only reached 19-24 cP. test RVA addition could change physicochemical properties, such point alkalinized KOH. However, there no significant difference when treated NaOH, which can be described gelling enzyme. Adding will gelation process, occurs at average temperature 42.78oC. Meanwhile, without has 37.48oC.