Additionally, oysters have been shown to have many biological activities, e.g., Zha et al. [2] reported that the Hong Kong oyster (Crassostrea hongkongensis) has high acetylcholinesterase (AChE) activity, Wang et al. [3] confirmed that oyster (Crassostrea gigas) hydrolysates had anti-tumor activity and immunostimulatory effects in BALB/c mice, Lee et al. [4] studied the anti-inflammatory effects of oyster shells, and Miao et al. [5] found that oyster (Ostrea rivularis) hydrolysates had anti-fatigue and antioxidant activities. Here, ACHE is linked to neoplasm.