High molecular weight pullulan
US5268460A · kind A · utility
8Cited by
7References
9Claims
0Family size
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Inventors
Key dates
| Filing date | Oct 16, 1991 |
| Grant date | Dec 7, 1993 |
| Priority date | — |
| Expiry date | Oct 16, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/911
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A method for obtaining a substantially biologically pure culture strain of Aureobasidium pullulans from a wild type strain by enriching the collected strain for organisms which grow as fungal yeastlike cells, growing colonies from isolated yeastlike cells and selecting those yeastlike cells which exhibit reduced pigmentation. Biologically pure culture strains obtained by the invention as well as methods for producing pullulan having decreased pigmentation and/or increased molecular weight are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.