Novel technology method for purifying berberine in wild berberis sibirica
A technology of berberine and a new method, applied in the field of purifying berberine, can solve the problems of low extraction rate and low product purity
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Embodiment example 1
[0020] Implementation Case 1: A new method of utilizing biological enzymatic hydrolysis coupled with ultrasonic enhanced extraction, combined with column chromatography to purify berberine, the steps are as follows:
[0021] (1) Enzymolysis:
[0022] 100g is crushed into three needles of 20 mesh, using compound cellulase, the enzyme dosage is 0.2% of the substrate, the enzymatic hydrolysis temperature is 40°C, and kept for 1h:
[0023] (2) Ultrasonic extraction:
[0024] Add 50% ethanol, the ratio of solid to liquid is 1:8, ultrasonic extraction, ultrasonic frequency 50KHZ, ultrasonic time 50min, thin-layer chromatography detection and analysis, recovery of ethanol, to obtain crude extract;
[0025] (3) get coarse powder:
[0026] Heat and dissolve the obtained primary extract with ethanol, adjust its pH value to 2.0 with acid, let stand, filter, wash with water until neutral, concentrate and dry to obtain crude berberine extract powder;
[0027] (4) Silica gel column chrom...
Embodiment example 2
[0035] Implementation case 2: A new method of using biological enzymatic hydrolysis coupling ultrasonic enhanced extraction, combined with column chromatography to purify berberine, the steps are as follows:
[0036] (1) Enzymolysis:
[0037] 100g is crushed into three needles of 30 mesh, using compound cellulase, the enzyme dosage is 0.4% of the substrate, the enzymatic hydrolysis temperature is 45°C, and kept for 2h:
[0038] (2) Ultrasonic extraction:
[0039] Add 60% ethanol, ultrasonic extraction, ultrasonic frequency 70KHZ, solid-liquid ratio 1:9, ultrasonic time 60min, thin-layer chromatography detection and analysis, recovery of ethanol, to obtain a crude extract;
[0040] (3) get coarse powder:
[0041] Heat and dissolve the obtained primary extract with ethanol, adjust its pH value to 2.5 with hydrochloric acid, let stand, filter, wash with water until neutral, concentrate and dry to obtain crude berberine powder;
[0042] (4) Silica gel column chromatography:
...
Embodiment example 3
[0050] Implementation Case 3: A new method of using biological enzymatic hydrolysis coupling ultrasonic enhanced extraction, combined with column chromatography to purify berberine, the steps are as follows:
[0051] (1) Enzymolysis:
[0052] 100g was crushed into three needles of 40 mesh, using compound cellulase, the enzyme dosage was 0.6% of the substrate, the enzymatic hydrolysis temperature was 50°C, and kept for 3 hours;
[0053] (2) Ultrasonic extraction:
[0054] Add 70% ethanol, ultrasonic extraction, ultrasonic frequency 80KHZ, solid-liquid ratio 1:10, ultrasonic time 80min, thin-layer chromatography detection and analysis, recovery of ethanol, to obtain crude extract;
[0055] (3) get coarse powder:
[0056] Heat and dissolve the obtained primary extract with ethanol, adjust its pH value to 2.0 with hydrochloric acid, let stand, filter, wash with water until neutral, concentrate and dry to obtain crude berberine powder;
[0057] (4) Silica gel column chromatograp...
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