Low-cost and high-efficiency curcumin extraction method
An extraction method, curcumin technology, which is applied in the field of low-cost and high-efficiency curcumin extraction, can solve problems such as difficulty in effective separation, and achieve the effects of low cost, easy operation, and high extraction efficiency
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Embodiment 1
[0029] A low-cost and efficient method for extracting curcumin, comprising the following steps:
[0030] (1) Grind the commercially available dry turmeric and pass it through a 40-mesh sieve for later use;
[0031] (2) Take crushed dry turmeric and add it to ethanol (75% volume concentration aqueous solution) (the ratio of solid to liquid is 1g:9mL), extract at 55°C for 50min, and at the same time supplement with 45Hz ultrasonic waves to obtain turmeric extract;
[0032] (3) Suction filter the obtained turmeric extract, then concentrate the obtained filtrate until it has no alcohol smell, extract (3 times) with 2 times the volume of petroleum ether (of the concentrated filtrate), discard the petroleum ether layer, and then concentrate Obtain turmeric extract;
[0033] (4) Adding 8 times the weight concentration of 2% sodium hydroxide aqueous solution in the obtained turmeric filter paste, stirring and dissolving, to remove other components such as cellulose, starch, volatile ...
Embodiment 2
[0040]A low-cost and efficient method for extracting curcumin, comprising the following steps:
[0041] (1) Grind the commercially available dry turmeric and pass it through a 40-mesh sieve for later use;
[0042] (2) Take crushed dry turmeric and add it to ethanol (75% volume concentration aqueous solution) (the ratio of solid to liquid is 1g:9mL), extract at 55°C for 50min, and at the same time supplement with 45Hz ultrasonic waves to obtain turmeric extract;
[0043] (3) Suction filter the obtained turmeric extract, then concentrate the obtained filtrate until it has no alcohol smell, extract (3 times) with 2 times the volume of petroleum ether (of the concentrated filtrate), discard the petroleum ether layer, and then concentrate Obtain turmeric extract;
[0044] (4) Adding 8 times the weight concentration of 2% sodium hydroxide aqueous solution in the obtained turmeric filter paste, stirring and dissolving, to remove other components such as cellulose, starch, volatile o...
Embodiment 3
[0051] A low-cost and efficient method for extracting curcumin, comprising the following steps:
[0052] (1) Grind the commercially available dry turmeric and pass it through a 40-mesh sieve for later use;
[0053] (2) Add the crushed dry turmeric to ethanol (70% volume concentration aqueous solution) (the ratio of solid to liquid is 1g:8mL), extract at 50°C for 45min, supplemented by 40Hz ultrasonic wave, and obtain the turmeric extract;
[0054] (3) Suction filter the obtained turmeric extract, then concentrate the obtained filtrate until it has no alcohol smell, extract (3 times) with 2 times the volume of petroleum ether (of the concentrated filtrate), discard the petroleum ether layer, and then concentrate Obtain turmeric extract;
[0055] (4) Add 5 times the weight concentration of 0.5% sodium hydroxide aqueous solution in the obtained turmeric filter paste, stir and dissolve, to remove other components such as cellulose, starch, volatile oil;
[0056] (5) Extract the ...
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