Nauclea officinalis extract and preparation and use thereof
A kind of extract, the technology of bile wood, applied in the field of bile wood extract
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Embodiment 1
[0118] Example 1. A gallwood extract, its extraction steps are as follows,
[0119] (1) Take the flaky heartwood, branches, trunk, bark or leaves of Rubiaceae Ebony genus, dry, pulverize, extract with alcohol-water mixed solution or organic solvent, combine the extracts, refrigerate overnight, filter, and recover alcohol water Mixed solution or organic solvent; then add to water or alkaline solution, stir, stand still, then adjust the pH to 8 with acidic solution, refrigerate, stand still, filter, put the filtrate separately, take the precipitate and add it to the alkaline solution , stir to dissolve, let stand, and then adjust the pH to 8 with an acidic solution, refrigerate, stand, filter, discard the filter residue, and combine the filtrate with the previous filtrate to obtain the crude extract solution;
[0120] or,
[0121] (1) Take the flaky heartwood, branches, trunk, bark or leaves of Rubiaceae Ebony genus, dry, grind, extract with water or alkaline aqueous solution...
Embodiment 2
[0125] Example 2. A gallwood extract, its extraction steps are as follows,
[0126] (1) Take the flaky heartwood, branches, trunk, bark or leaves of Rubiaceae Ebony genus, dry, pulverize, extract with alcohol-water mixed solution or organic solvent, combine the extracts, refrigerate overnight, filter, and recover alcohol water Mix solution or organic solvent; then add to water or alkaline solution, stir, stand still, then adjust pH to 4 with acidic solution, refrigerate, stand still, filter, put the filtrate separately, take the precipitate and add it to the alkaline solution , stir to dissolve, let stand, then adjust the pH to 4 with an acidic solution, refrigerate, stand, filter, discard the filter residue, and combine the filtrate with the previously separated filtrate to obtain the crude extract solution;
[0127] or,
[0128] (1) Take the flaky heartwood, branches, trunk, bark or leaves of Rubiaceae Ebony genus, dry, grind, extract with water or alkaline aqueous soluti...
Embodiment 3
[0132] Example 3. A gallwood extract, its extraction steps are as follows,
[0133] (1) Take the flaky heartwood, branches, trunk, bark or leaves of Rubiaceae Ebony genus, dry, pulverize, extract with alcohol-water mixed solution or organic solvent, combine the extracts, refrigerate overnight, filter, and recover alcohol water Mix solution or organic solvent; then add to water or alkaline solution, stir, stand still, then adjust pH to 6 with acidic solution, refrigerate, stand still, filter, put the filtrate separately, take the precipitate and add it to the alkaline solution , stir to dissolve, let stand, and then adjust the pH to 6 with an acidic solution, refrigerate, stand, filter, discard the filter residue, and combine the filtrate with the previous filtrate to obtain the crude extract solution;
[0134] or,
[0135] (1) Take the flaky heartwood, branches, trunk, bark or leaves of Rubiaceae Ebony genus, dry, grind, extract with water or alkaline aqueous solution, refr...
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