Carrageenan is that the carrageenan is first dissolved and filtered to remove cell wall debris. The carrageenan is then precipitated from the clear solution either by isopropanol or by potassium chloride. A hybrid technology in which seaweed is treated heterogeneously as in the semirefined process exists, but alcohol or high salt levels are used to inhibit dissolution. This process is often used on South American seaweeds and gives some of the cost benefits of semirefined processing, while allowing a wider range of seaweeds to be processed, however, the naturally low cellulose levels in some South American seaweeds allow them to be
Red-and-blue lory deep blue. Extending the color from the nape, the bird's back is a deep violet purple. Wing and tail flight feathers - retrices and remiges - are between red and red-violet. The wing covert feathers are black and red with black tips. The leg feathers are bluish-purple. The feet are medium gray, and the claws are black. The cere is very dark gray, and the irises of the eyes are dark brown. The red-and-blue lory's voice consists of short, harsh chattering screeches. Their flight is said to be quick and straight. The red-and-blue lory is now confined to the Talaud