Pollen polysaccharide extract and application thereof in plant growth
US11732056B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Dec 25, 2020 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Dec 25, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L5/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A pollen polysaccharide extract prepared by the following method: mixing rape pollen with water, then heating and stirring for extraction, filtering, mixing filtrates, adding chitosan to a resulting filtrate to obtain a liquid to be clarified, keeping the liquid to be clarified at 60-80° C. for at least 1 h, cooling and allowing to stand, and performing solid-liquid separation to obtain a liquid, namely the pollen polysaccharide extract.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.