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
Purple Line (CTA) Express would return to the original Inner Loop routing on December 29. If a problem occurs between the Loop and the Fullerton station, the Purple Line is generally routed into the subway, following the Red Line to Roosevelt Road before returning north. For several years, inbound afternoon Purple Line Express trains stopped at Addison Street on the Red Line before weekday evening Chicago Cubs baseball games, in order to provide direct service to Wrigley Field for passengers from northern Chicago, Evanston and Skokie. However, trains had to cross over to the inner Red Line tracks, as there is no platform