Process for enriching and purifying capsaicin with macroporous adsorption resin
A technology of capsaicin and adsorption resin, which is applied in the field of natural capsaicin crystallization, can solve the problems of waste liquid and gas pollution, high cost of equipment and high requirements for industrial equipment, and achieve the effects of large adsorption capacity, easy operation and good mechanical strength
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Embodiment 1
[0024] Weigh 200g of dry peel powder of Hunan Changsha red pepper, extract 3 times with 800ml of acetone at 30°C under constant stirring, each time for 1h, filter, combine the filtrates, concentrate and recover acetone. After the concentrate is dissolved in 30ml of 95% ethanol (V / V), mix it with HPD100 resin with a dry weight of 25g, add 400ml of water, stir at a constant speed (30rpm) for 2h, rinse with 1000ml of water, and use a flow rate of 400ml / h. 85% (V / V) ethanol 300ml rinses, and flow rate is 75ml / h, concentrates ethanol eluent, promptly obtains containing capsaicin extract 1.86g, yield 0.93%, and HPLC method records dihydrocapsaicin, The total capsaicin content is 38.25%.
Embodiment 2
[0026] Weigh 200 g of dried red pepper peel powder, extract 2 times with 1200 ml of 50% (V / V) ethanol at 60 ° C under constant stirring, each time for 1 h, filter, combine the filtrates, concentrate and recover ethanol. After the concentrate was dissolved in 40ml of 95% ethanol (V / V), it was mixed with HPD130 resin with a dry weight of 22.5g, and 400ml of water was added, stirred at a constant speed (30rpm) for 2h, washed with 1000ml of water, and the flow rate was 400ml / h. Rinse with 270ml of 95% (V / V) ethanol, and flow rate is 120ml / h, concentrates ethanol eluent, promptly obtains containing capsaicin extract 1.78g, yield 0.89%, and HPLC method records dihydrocapsaicin in the extract , The total content of capsaicin is 38.64%.
Embodiment 3
[0028] Weigh 200 g of dried red pepper peel powder, extract 3 times with 5 times the weight of 80% ethanol at 60 ° C under constant stirring, each time for 1 h, filter, combine the filtrates, concentrate and recover ethanol. After the concentrate is dissolved in 40ml of 95% ethanol (V / V), mix it with HPD300 resin with a dry weight of 20g, add 400ml of water, stir at a constant speed (30rpm) for 3h, rinse with 1000ml of water, and use a flow rate of 400ml / h. Rinse with 120ml of methanol, the flow rate is 50ml / h, and concentrate the methanol eluate to obtain 1.88g of capsaicin-containing extract, with a yield of 0.94%. The total content of dihydrocapsaicin and capsaicin in the extract was determined to be 37.35% by HPLC.
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