Tribune Publishing Co., the company to be formed when Tribune Co. spins off its newspapers later this year, will take on $350 million in new debt, $25 million more than it previously expected, as part of its separation from the parent company. The Chicago-based Tribune media conglomerate, which owns eight daily newspapers and 42 local TV stations, said in a news release that it also expects the spinoff to take place slightly later than previously planned, in the third quarter, as opposed to by the end of this month. Tribune also disclosed more details in an updated regulatory filing related to the transaction. Tribune last year attempted to sell the newspaper group, which includes the Chicago Tribune, Los Angeles Times and Baltimore Sun, but abandoned those efforts and opted instead to spin off the publishing entity to its existing shareholders and list shares of the new company on the New York Stock Exchange.