| 发明名称 | Low molecular weight hyaluronic acid and/or salt thereof, method for producing same, and cosmetic preparation and food composition containing same | ||
| 摘要 | A low-molecular-weight hyaluronic acid and/or its salt is obtained by dispersing hyaluronic acid and/or its salt in an acidic water-containing medium. | ||
| 申请公布号 | US8933054(B2) | 申请公布日期 | 2015.01.13 |
| 申请号 | US200611909267 | 申请日期 | 2006.03.17 |
| 申请人 | Q.P. Corporation | 发明人 | Yoshida Takushi |
| 分类号 | A01N43/04;A61K31/715;C08B37/00;C07H5/04;C07H5/06;A61Q19/00;A23L1/056;A23L1/30;A23L2/52;A61K8/73;C08B37/08;A61Q19/02 | 主分类号 | A01N43/04 |
| 代理机构 | Harness, Dickey & Pierce, P.L.C. | 代理人 | Harness, Dickey & Pierce, P.L.C. |
| 主权项 | 1. A low-molecular-weight hyaluronic acid or its salt having a molecular weight of 6,000 to 100,000 daltons as measured by a limiting viscosity method, an L value indicating lightness of 90 or more, and a b value indicating hue of 5 or less, the low-molecular-weight hyaluronic acid or its salt being obtained by a process comprising dispersing hyaluronic acid or its salt in an acidic water-containing medium having a pH of 2 or less, at a temperature of 30 to 70° C., wherein the water-containing medium contains at least one medium selected from the group consisting of ethanol, methanol, and acetone. | ||
| 地址 | JP | ||