Bee pollen preparation and preparation method and application to preventing DNA oxidative damage
A technology of oxidative damage and bee pollen, applied in the application, pharmaceutical formula, function of food ingredients, etc., can solve the problems of DNA oxidative damage prevention function and low content of active ingredients, etc., to prevent DNA oxidative damage and prevent senile dementia. , the effect of enhancing antioxidant capacity
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Embodiment 1
[0048] Take 500g of broken wall rape bee pollen, 300g of broken wall buckwheat bee pollen, and 200g of broken wall sorghum bee pollen, mix them, add 10L of 60% ethanol; extract twice by heat reflux at 60°C, and extract after 2 hours each time liquid, combined the 2 extracts and filtered to obtain the filtrate. The filtrate was concentrated under reduced pressure at 45°C to an extract state.
[0049] The above extract was dissolved in 10 times the weight of methanol solution with a concentration of 70%, extracted 2 times with equal volumes of ethyl acetate, each extraction was 20min, after merging the ethyl acetate extracts obtained by the 2 extractions, and It was concentrated under reduced pressure to an extract.
[0050] Dissolve the extract in hot water at 70°C, adsorb it with XAD-2 resin, rinse with distilled water of 2 times the volume of the column bed, and then elute with 80% methanol solution of 2 times the volume of the column bed, and concentrate the eluent to Past...
Embodiment 2
[0054] Take 500g of broken wall rape bee pollen, 300g of broken wall buckwheat bee pollen, and 200g of broken wall sorghum bee pollen, mix them, add 12L of 70% ethanol; extract 3 times by heat reflux at 70°C, and extract after 2 hours each time liquid, combined three extracts and filtered to obtain the filtrate. The filtrate was concentrated under reduced pressure at 50°C to an extract state.
[0055] Dissolve the above extract in 10 times the weight of methanol solution with a concentration of 80%, extract 3 times with equal volume of ethyl acetate for 30 min each time, combine the ethyl acetate extracts obtained by 3 times of extraction, and extract it Concentrate under reduced pressure to extract.
[0056] Dissolve the extract in hot water at 80°C, adsorb it with XAD-2 resin, rinse with distilled water of 2 times the volume of the column bed, and then elute with 90% methanol solution of 3 times the volume of the column bed, and concentrate the eluent to Paste; the resulti...
Embodiment 3
[0060] Take 500g of broken wall rapeseed bee pollen, 300g of broken wall buckwheat bee pollen, and 200g of broken wall sorghum bee pollen, mix them, add 15L of 80% ethanol; extract 4 times by heat reflux at 80°C, and extract 3 hours each time to get The extracts were combined for 4 times and filtered to obtain a filtrate. The filtrate was concentrated under reduced pressure at 55°C to an extract state.
[0061] Dissolve the above-mentioned extract in 10 times the weight of methanol solution with a concentration of 85%, extract 4 times with equal volume of ethyl acetate, extract 30 min each time, combine the ethyl acetate extracts obtained by 4 times of extraction, and extract it Concentrate under reduced pressure to extract.
[0062] The extract was dissolved in hot water at 85°C, adsorbed with XAD-2 resin, washed with distilled water of 2 times the volume of the column bed, and then eluted with 100% methanol solution of 4 times the volume of the column bed, and the eluate wa...
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