A method for extracting saponin and rhamnose from turmeric
A technology of rhamnose and saponin is applied in the comprehensive utilization of turmeric extracting saponin, and the field of extracting saponin from turmeric can solve problems such as affecting the long-term utilization and development prospect of turmeric, and achieve subsequent resource guarantee, simple operation and simplification. The effect of the production process
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Embodiment 1
[0040] Weigh 100kg of dried turmeric, crush it through a 20-mesh sieve >90%, add 500kg of 80% ethanol, extract three times, each time for 1.5 hours, combine and concentrate the three turmeric extracts to recover ethanol until there is no alcohol smell, add to the concentrated solution The final concentration of hydrochloric acid solution is 2.5 mol / L, and acid hydrolysis is carried out at 30°C for 90 minutes; the acid hydrolysis solution is filtered to obtain 4.34 kg of crude saponin. Crude saponin was crystallized and recrystallized with petroleum ether, left to stand for 8-12 hours, then filtered, and recrystallized until the crystal color was white, and the crystals were vacuum-dried to obtain 3.68kg of turmeric saponin finished product, which was processed by HPLC. The detection of element content reached 99.42%. The filtrate is adsorbed by AB-8 macroporous resin at 45°C, filtered to obtain macroporous resin particles with adsorbed pigment, washed with distilled water and ...
Embodiment 2
[0042] Weigh 200kg of dried turmeric, crush it through a 20-mesh sieve >90%, add 900kg of 80% ethanol, extract three times, each time for 1.5 hours, combine and concentrate the three turmeric extracts to recover ethanol until there is no alcohol smell, add Hydrochloric acid solution to make the final concentration of 2.5mol / L, carry out acid hydrolysis at 30°C for 90min; filter the acid solution to obtain 8.85kg of crude saponin. Crude saponin was crystallized and recrystallized with petroleum ether, left to stand for 8-12 hours, then filtered and recrystallized until the crystal color was white, and the crystals were vacuum-dried to obtain 7.45kg of turmeric saponin finished product, which was processed by HPLC. The detection of element content reached 99.46%. The filtrate is adsorbed by AB-8 macroporous resin at 45°C, filtered to obtain macroporous resin particles with adsorbed pigment, washed with distilled water and then eluted with 55% ethanol, and the eluate is concentra...
Embodiment 3
[0044] Weigh 400kg of dried turmeric, crush it through a 20-mesh sieve >90%, add 1800kg of 80% ethanol, extract three times, each time for 1.5 hours, combine and concentrate the three turmeric extracts to recover ethanol until there is no alcohol smell, add to the concentrated solution The final concentration of hydrochloric acid solution was 2.5 mol / L, and acid hydrolysis was carried out at 30°C for 90 minutes; the acid solution was filtered to obtain 17.56 kg of crude saponin. Crude saponin was crystallized and recrystallized with petroleum ether, left to stand for 8-12 hours, then filtered and recrystallized until the crystal color was white, and the crystals were vacuum-dried to obtain 13.55kg of turmeric saponin finished product, which was processed by HPLC method. The detection of element content reached 99.63%. The filtrate is adsorbed by AB-8 macroporous resin at 45°C, filtered to obtain macroporous resin particles with adsorbed pigment, washed with distilled water and...
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