An anti-inflammatory function of BIOGF1K was explored. BIOGF1K suppressed nitric oxide (NO) generation and mRNA expression of inflammatory genes. BIOGF1K also suppressed nuclear translocation of activator protein-1 (AP-1) transcription factor and the activation of mitogen-activated protein kinases (MAPKs) and mitogen-activated protein kinase kinases (MAPKKs). The study suggests that BIOGF1K plays an anti-inflammatory role in macrophage.