Cellulose is a carbohydrate that forms the primary building matter of plants.
Some cellulose remained in the soil on Melona IV after the Crystalline Entity had devastated the planet. (TNG: "Silicon Avatar")
When Neelix was having trouble with a replicator in the Mess Hall, he noted to Samantha Wildman that it was having trouble replicating anything with a high level of cellulose, turning food too yellow. (VOY: "Deadlock")