Chahan (dish) Chahan (dish) "Chahan" may have originated from Chinese immigrants who arrived at the port of Kobe, Japan in the 1860s. In Chinese, fried rice is called "chǎofàn" (); these same Chinese characters have a Japanese reading of "Chāhan". "Chahan" is a Japanese fried rice dish that is typically fried, and can be cooked by stir frying it in a wok. Rice is used as a primary ingredient, and myriad additional ingredients can be used, such as vegetables, onion, garlic, edible mushrooms such as shiitake, tofu, pork, pork belly, seafoods such as crab meat, roe, salmon, shrimp and octopus, scrambled egg,
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