One of the world’s largest gelatin makers in Sergeant Bluff is laying off30 workers due to slower sales. Kind and Knox makes gelatin that is used fora variety of products worldwide. Spokesman John Harty says the company couldnot keep up with orders last year, but a downturn in the global economy hashurt sales.Harty says the company just completed a multi-million dollar expansion twoyears ago and had increased its employment to 290. Harty says the company remains optimistic things will turn around and theycan re-hire the workers.