Salvia miltiorrhiza stachyose, and preparation method and application thereof
A technology of stachyose and salvia miltiorrhiza, applied in the preparation of sugar derivatives, chemical instruments and methods, oligosaccharides, etc., to achieve the effects of improving economic benefits, increasing the scope of medical care applications and resource utilization
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Embodiment 1
[0033] Example 1. A method for preparing stachyose from fresh salvia miltiorrhiza root.
[0034] Fresh Danshen root 2Kg, cut into 2-3mm thin slices, use 10Kg water twice in advance, 2 hours each time, combine the extract; add 2Kg activated carbon to the extract for decolorization, let it stand for clarification, and suction filter; Concentrate the extract Make a syrup with a specific gravity of 1.2, add edible ethanol to make an ethanol solution with a final concentration of 80%, let it stand overnight, filter out the stachyose precipitate, and freeze-dry to obtain 150g off-white stachyose powder with a yield of 7.5%. The content is 86%.
Embodiment 2
[0035] Example 2. A method for preparing stachyose from dried salvia miltiorrhiza.
[0036]Dry 2Kg of Danshen root medicinal material, cut into 2-3mm thin slices, use 15Kg water twice in advance, each time for 2 hours, combine the extracts, filter, and pass the extracts through a macroporous adsorption resin column with 2Kg D101 inside, until all the solutions pass through Finally, rinse the column bed with deionized water of 3 times the volume of the column bed, combine the passing liquid and the washing solution, concentrate under reduced pressure to a syrup with a specific gravity of 1.2, and then freeze-dry with a lyophilizer to obtain 420g off-white stachyose powder. The yield was 21.0%, and the stachyose content was 89.0%.
Embodiment 3
[0037] Example 3. The invention discloses a method for preparing stachyose from the residue after preparing Danshen extract and various Danshen preparations.
[0038] Utilize 1Kg of the wet residue of Salvia miltiorrhiza after being extracted with 70% ethanol, advance twice with 5Kg water respectively, each time for 2 hours, and combine the extract; add 1Kg activated carbon to the extract for decolorization, let it stand for clarification, and suction filter; The extract was concentrated into a syrup with a specific gravity of 1.2, and edible ethanol was added to make an ethanol solution with a final concentration of 80%, which was allowed to stand overnight, and the stachyose precipitate was filtered out, and freeze-dried to obtain 110 g of off-white stachyose powder, with a yield of 11.0% ( Residue wet weight), stachyose content 83%.
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