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莼菜(Brasenia Schreberi Gruel),又名蒪菜、马蹄草,属睡莲科,为多年生宿根性的湖沼草本,原产我国东南部。杭州西湖、萧山湘湖和太湖流域有野生或人工栽培,苏州洞庭公社扬湾一带,有自生种莼菜荡近数百亩。莼菜以嫩茎和嫩叶供食用,地下茎富含淀粉,可制馅心。嫩茎及幼叶外附透明胶质,做汤入口润滑,别具风味。据中药大辞典资料,莼菜成分含有少量维生素B_(12),胶质中含L-阿拉伯糖5.9％,L-岩藻糖10.9％,D-半乳糖34.1％,D-葡萄糖醛酸17.3％,D-甘露糖13.4％,L-鼠李糖11.4％,D-木糖7％,并含有半乳糖醛酸,D-果糖,D氨基葡萄糖
Brasenia schreberi Gruel, also known as razor clams, horseshoe grass, is a Nymphaeaceae, a perennial herbivorous lake, native to southeast China. Hangzhou West Lake, Xiaoshan Xianghu and Taihu Lake basins are wild or cultivated, Suzhou Dongting commune Yangwan area, there are hundreds of native species of wild boiled vegetables hundreds of acres. Brasenia stem and tender leaves for food, underground stems rich in starch, the system can be filled heart. Young stems and young leaves attached to the transparent gelatin, soup inlet lubrication, unique flavor. According to the Chinese Dictionary, there is a small amount of vitamin B_ (12) in Brasenia stem, which contains 5.9% of L-arabinose, 10.9% of L-fucose, 34.1% of D-galactose and 17.3% of D-glucuronic acid, 13.4% of D-mannose, 11.4% of L-rhamnose, 7% of D-xylose and contains galacturonic acid, D-fructose, D-glucosamine