*3.3.7 Chinese quince (Chaenomeles sinensis)*

 The origin is China, 6–10 m height, flowering in spring and mature yellow fruit has great aroma in autumn (**Figure 3(7)**). In China, more than 2000 years ago, the fruits were used as a medicine for cough and recovering from fatigue and an aromatic. The fresh fruit is very solid and astringent; therefore, it needs to be cooked or steeped in liquor or sugar and used for cough, sore throat, tonic, diuresis, analgesic, obstipant, and calming intestinal. The constituents are malic acid, citric acid, tartaric acid, saponin, tannin, sucrose, and fructose.
