Aloe pectins
US5929051A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1998 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | May 13, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2305/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Pectins from gel and rind cell wall fibers of Aloe vera are extracted, isolated and identified. Two classes of Aloe pectin are obtained: the high-molecular-weight (HMW) pectin and the low-molecular-weight (LMW) pectin. Aloe pectins have a low methoxyl (LM) content. Aloe pectins form gel in the presence of calcium, and they, especially, the HMW pectin, form monovalent cation-based gels at low temperature, which revert back to solution when brought to room temperature. The HMW Aloe pectin-calcium gel is used for controlled release. The monovalent cation-based gel is used as a matrix for storing pharmacological substances and also for antigen and antibody precipitation reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.