The gut microbiota‐aromatic hydrocarbon receptor (AhR) axis mediates the anticolitic effect of polyphenol‐rich extracts from Sanghuangporus oleh Shi Zhong, Yu‐Qing Sun, Jin‐Xi Huo, Wen‐Yi Xu, Ya‐Nan Yang, Jun‐Bo Yang, Wei‐Jie Wu, Yong‐Xin Liu, Chong‐Ming Wu, You‐Gui Li