Method for extracting tabersonine from voacanga seed
A technology of potato and taborin, which is applied in the field of alkaloid extraction and separation, can solve the problems of cumbersome process, high cost, and low yield, and achieve the effects of reducing pollution, good quality, and reducing production costs
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Embodiment 1
[0029] Take 50kg of potato seeds and grind them to 30 meshes, and extract them with 100kg of 0.5% sulfuric acid aqueous solution at 60°C with stirring for 3 times to obtain an extract.
[0030] The above three extracts were combined, the pH of the solution was adjusted to 10 with ammonia water, the precipitate was placed overnight, centrifuged, and the supernatant was discarded to obtain a precipitate with a wet weight of 5 kg.
[0031] Add 20kg of water to the above wet precipitate and stir to form a suspension, then extract with 25kg of petroleum ether for a total of 3 times to obtain the extract. The three extracts were combined and concentrated to 2.5kg of oily substance, and the oily substance was put in the refrigerator overnight, and crystals were precipitated in the oil, and then centrifuged and dried to obtain 1.35kg of light yellow powder, which was Taborin, with a yield of 2.7% and a content of 96.6%. .
Embodiment 2
[0033] Take 50 kg of potato seeds and grind them to 30 meshes, and extract them with 150 kg of 3% hydrochloric acid aqueous solution at 80°C with stirring for 3 times to obtain an extract.
[0034] The above three extracts were combined, the pH of the solution was adjusted to 9 with 25% sodium carbonate aqueous solution, the precipitate was placed overnight, centrifuged, the supernatant was discarded, and the precipitate was obtained. The wet weight of the precipitate was 6.3 kg.
[0035] Add 25.2kg of water to the above wet precipitate and stir to form a suspension, then extract with 31.5kg of petroleum ether: n-hexane = 1:1 (volume ratio), and extract 3 times in total to obtain the extract. The three extracts were combined and concentrated to 3kg of oily substance, and the oily substance was put in the refrigerator overnight, crystals were precipitated in the oil, and centrifuged and dried to obtain 1.5kg of light yellow powder, which was Taborin, with a yield of 3% and a con...
Embodiment 3
[0037] Take 50kg of potato seeds and grind them to 30 meshes, and extract them with 250kg of 5% citric acid aqueous solution at 80°C with stirring for 3 times to obtain an extract.
[0038] The above three extracts were combined, and the pH of the solution was adjusted to 11 with a 20% aqueous sodium hydroxide solution. The precipitate was placed overnight, centrifuged, and the supernatant was discarded to obtain a precipitate. The wet weight of the precipitate was 5.7 kg.
[0039] Add 22.8kg of water to the above wet precipitate and stir to form a suspension, then extract with 28.5kg of petroleum ether: n-hexane = 3:1 (volume ratio), and extract 3 times in total to obtain the extract. The three extracts were combined and concentrated to 2.5kg of oily matter, and the oily matter was put in the refrigerator overnight, crystals were precipitated in the oil, and centrifuged and dried to obtain 1.2kg of light yellow powder, which was Taborin, with a yield of 2.4% and a content of 9...
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