Kuai (dish) flukes and other parasitic organisms, however many prominent Chinese individuals (including Cao Zhi and Chen Deng) maintained a strong affinity for the dish. It was believed that the application of strongly flavored spices such as mustard or Sichuan pepper could render the dish safe to consume. Consumption of "kuai" in China declined sharply by the time of the Qing dynasty. Since that time, most Chinese food has been cooked, though a Chaozhou (Teochew) dish called "yusheng" uses raw fish as its primary ingredient. Kuai (dish) Kuai was a Chinese dish consisting of finely cut strips of raw fish or meat,
Active ingredient Active ingredient An active ingredient (AI) is the ingredient in a pharmaceutical drug or pesticide that is biologically active. The similar terms active pharmaceutical ingredient (API) and bulk active are also used in medicine, and the term active substance may be used for natural products. Some medication products may contain more than one active ingredient. The traditional word for the API is pharmacon or pharmakon (from , adapted from pharmacos) which originally denoted a magical substance or drug. The terms active constituent or active principle are often chosen when referring to the active substance of interest in a plant (such