1. Methods: The flavonoid were extracted by ethanol as the solvent from onion with ultrasonic wave and ethanol extraction. Using spectrophotometry to extract and check the flavanone of onion. 方法：采用超声波乙醇浸提法从洋葱中提取黄酮类物质，对所提取的黄酮类物质进行验证，并用紫外分光光度法测定含量。
2. Xinjian county is the hometown of Chinese bulbous onion and has a long history in planting Chinese bulbous onion with high quality. 新建县是中国荞头之乡，种植荞头历史悠久，品质极优，基地种植面积大。
3. paddy field, uplands with young soy beans, peanut, chinese cabbage, cabbage, cauliflower, green onion, lettuce, onion and watermelon plants in Chang-hua. 彰化地区水稻田及毛豆、花生、大白菜、甘蓝菜、花椰菜、葱、莴苣、洋葱及西瓜等植物种植地点，进行温室气体采集；
4. Add the minced onion onion powder and garlic powder. 加入洋葱碎，洋葱粉，蒜粉。
5. The security of onion routing be analyzed in this paper. Finally several application of onion routing are described. 然后分析洋葱路由技术的安全性，最后讨论洋葱路由技术的应用。
