Method of preserving agarose gel structure during dehydration by adding a non-reducing glycoside of a straight-chain sugar alcohol
US5621094A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1994 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Jun 8, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B37/0039
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of preserving delicate biological substances or organic compounds (a) in a dry state and/or (b) at elevated temperatures and/or (c) under irradiation comprises incorporating in a system containing the said substances or compounds, a sugar or a sugar derivative selected from (i) a non-reducing glycoside of a polyhydroxy compound selected from sugar alcohols and other straight chain polyalcohols, or (ii) a non-reducing oligosaccharide selected from raffinose, stachyose and melezitose. In particular, methods for preserving dehydrated agarose gels comprising adding lactitol or glucopyranosyl-mannitol or glucopyranosyl-sorbitol to the gel during formation and prior to dehydration are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.