The teal extract polysaccharides of Psidium guajava loaves by ethanol degreasing method.The extraction rate of polysaccharide is 15.3%, 9.7%.

• 本实验采用乙醇脱脂法制得番石榴叶、番薯叶粗多糖的提取得率分别为15.；3%25、9