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Kappaphycus alvarezii or commonly known Euchema cottonii is a good source of kappa-carrageenan and can be found cultivated in the coastal areas of Malaysia, Philippines and Indonesia. Carrageenans have many applications and are utilized in human food and pet-food industry. Carrageenans are also utilized in non-food industry such as pharmaceuticals, cosmetics, printing and textile formulations. Currently, the Southeast Asian region is producing semi refined carrageenan (SRC). There are various works in producing SRC; however, there are limited efforts to develop the optimization of cooking process parameters. Hence, the present study features on the cooking process (alkaline treatment) where the parameters (concentration of potassium hydroxide solution, cooking time and cooking temperature) and the ranges are identified experimentally. The effects of these parameters on carrageenan quality such …