Novel production process of hyaluronic acid and bacterium strain therefor
US5023175A · kind A · utility
35Cited by
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2Claims
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Key dates
| Filing date | Apr 16, 1987 |
| Grant date | Jun 11, 1991 |
| Priority date | — |
| Expiry date | Apr 16, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/885
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Hyaluronic acid can be produced efficiently and economically by culturing a strain belonging to a Streptococcus, which has hyaluronic acid producing ability, is hyaluronidase-nonproductive and shows anhemolytic property, and then collecting the hyaluronic acid from the resultant culture. The strain may preferably be Streptococcus zooepidemicus, especially, Streptococcus zooepidemicus YIT 2030 (FERM BP-1305). The hyaluronic acid has a high molecular weight and is useful in providing a cosmetic composition having excellent moisturizing effects and superb feeling of application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.