Method for extracting perillaldehyde and anthocyanin from folia perillae acutae
A technology of perilla aldehyde and anthocyanin, which is applied in chemical instruments and methods, separation/purification of carbonyl compounds, preparation of sugar derivatives, etc., can solve problems such as unsafety, improve yield, inhibit enzyme activity, and ensure stability. Effect
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Embodiment 1
[0024] Take 400kg of fresh perilla leaves (water content is 86%) and grind them with a grinder, add 800L of 85% ethanol aqueous solution immediately, adjust the pH value to 2.5 with 1mol / L hydrochloric acid solution, and carry out leaching at room temperature for 3h. Filtrate twice with three layers of gauze, filter once with a ceramic membrane to remove slag to obtain 750L filtrate I, then add 70kg of NKA-9 macroporous resin particles to the filtrate I and place it at room temperature for 40min, filter once with a ceramic membrane to obtain 110kg filter residue I and 700L filtrate II, The filtrate II was subjected to atmospheric distillation at 85°C to collect 3.5L perillaldehyde and recover ethanol. Perillaldehyde was rectified once again under normal pressure at 75°C to obtain 2.34kg of pure perillaldehyde. NKA-9 macroporous resin column particles were used for elution, and 4 times the volume of 70% ethanol aqueous solution with a pH value of 3 was used for elution, and the...
Embodiment 2
[0026] Take 1000kg of fresh perilla leaves (with a water content of 83%) and grind them with a grinder, immediately add 2500L of 80-90% ethanol aqueous solution, adjust the pH value to 2 with 1mol / L hydrochloric acid solution, and then extract at room temperature 3h. Filtrate twice with three layers of gauze, filter once with ceramic membrane to get 2400L filtrate I, then add 150kg of NKA-9 macroporous resin particles to filtrate I, leave it at room temperature for 30min, filter once with ceramic membrane to get 250kg filter residue I and 2300L filtrate II , The filtrate II was subjected to atmospheric distillation at 60°C to 85°C to collect 10.7L perillaldehyde and recover ethanol. Perillaldehyde was rectified once again under normal pressure at 70°C to obtain 5.86kg of pure perillaldehyde. NKA-9 macroporous resin column particles were used for elution, and 5 times the volume of 80% ethanol aqueous solution with a pH value of 2.5 was used for elution, and the eluate I was co...
Embodiment 3
[0028] Take 2000kg of fresh perilla leaves (with a water content of 84%) and grind them with a mincer, immediately add 3000L of 90% ethanol aqueous solution and 1mol / L hydrochloric acid solution to adjust the pH value to 2, and then carry out leaching at room temperature for 5 hours. Filtrate twice with three layers of gauze, filter once with ceramic membrane to get 2850L of filtrate I, then add 300kg of NKA-9 macroporous resin particles to filtrate I, leave it at room temperature for 20min, filter once with ceramic membrane to get 390kg of filter residue I and 2750L filtrate II , The filtrate II was subjected to atmospheric distillation at 60°C to 85°C to collect 19.6L perillaldehyde and recover ethanol. Perillaldehyde was rectified again under normal pressure at 70°C to obtain 11.42kg of pure perillaldehyde. NKA-9 macroporous resin column particles were used for elution, and 3 times the volume of 60% ethanol aqueous solution with a pH value of 2.5 was used for elution, and t...
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