TNF and cancer: Together, these antioxidant substances and antioxidant activity lower the risk of degenerative illnesses including cancer, cardiovascular disease, etc. Banana peel also contains anti-inflammatory agents such as trigonelline which inhibits bacterial enzymes and nucleic acid synthesis, isovanillic acid which suppresses TNF-α production, and ferulic acid which inhibits the production of pro-inflammatory signaling and cytokines.