The molecular weight of SPG was 62 000Da. The protein content was up to 10.71%,and its polysaccharide content was 80.06%. Serum TC and TG contents of hyperlipidemia rats significantly decreased when SPG is used between 5mg/kg.

• 甘薯糖蛋白的分子量约为62 000Da，其中蛋白质含量约为10.；71%25，糖含量约为80