Extraction method of Alstonia yunnanensis leaf pigment
A maple leaf and four-corner technology, which is applied in the field of extraction and production of Chinese medicinal materials, can solve the problems of large production equipment, low material utilization rate, and large power consumption, and achieve small footprint, good fluidity, and safe production process. Effect
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Embodiment 1
[0027] The method for extracting the four-cornered maple leaf pigment of the present embodiment comprises the steps:
[0028] Take 1kg of four-cornered maple leaf, beat it into 100 mesh powder, add ethanol / water solvent with a volume ratio of 1.5:1, and the solid content rate is 5%, circulate in the AFR microchannel reactor at 100ml / min and 30°C, and take the AFR The outlet liquid of the microchannel reactor is analyzed for the composition of the outlet liquid and leaf powder.
[0029] With the method of this embodiment, the pigment extraction rate is 66.7%, and the loss of tannins and volatile oil components in the leaf powder is small, which is very beneficial for subsequent utilization.
Embodiment 2
[0031] Take 1kg of four-cornered maple leaf, grind it into 150 mesh powder, add ethanol / water solvent with a volume ratio of 2:1, and the solid content rate is 7%, circulate it in the AFR microchannel reactor at 120ml / min, 30°C, and take it out Liquid, analyze the composition of the outlet liquid and leaf powder.
[0032] With the method of this embodiment, the pigment extraction rate is 69.7%, and the loss of tannins and volatile oil components in the leaf powder is small, which is very beneficial for subsequent utilization.
Embodiment 3
[0034] Take 1kg of four-cornered maple leaf, grind it into 200 mesh powder, add ethanol / water solvent with a volume ratio of 4:1, and the solid content rate is 10%, circulate in the AFR microchannel reactor at 150ml / min and 60°C, and take it out Liquid, analyze the composition of the outlet liquid and leaf powder.
[0035] With the method of this embodiment, the pigment extraction rate is 96.3%, and the loss of tannins and volatile oil components in the leaf powder is small, which is very beneficial for subsequent utilization.
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