Extraction process of biological crude alkali from leaves of jatropha curcas
An extraction process and technology of jatropha leaves, applied in the field of biotechnology, can solve problems such as less research on jatropha bioalkaloids
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[0026] Example 1:
[0027] Such as figure 1 As shown, the jatropha cotyledon is air-dried naturally. Use a pulverizer to crush, sieving, size ≤5.0mm, and store at room temperature. Take 1.0 kg of Jatropha cotyledon and disperse it in 10 L of absolute ethanol, and ultrasonically process it while stirring. The ultrasonic power is 500 W and the ultrasonic time is 20 min. The residue was removed by filtration. After the obtained yellow solution was evaporated to remove ethanol, 1.0L of 10% acetic acid aqueous solution was added, soaked for 0.5h, so that the acidified bioalkaline was completely dissolved in water, and filtered with filter paper to obtain a yellow aqueous phase. This process is repeated twice, and the yellow water phases are merged together.
[0028] Add 10% sodium hydroxide aqueous solution to the filtered water phase to adjust the pH to about 10. Put the combined 3.0L water phase in a suction flask containing filter cloth, and vacuum pump to remove the residue. The ...
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[0029] Example 2:
[0030] The jatropha cotyledon was dried with a dryer at 60°C for 18 hours. Use a pulverizer for crushing, sieving, size ≤2.0mm, and storage at room temperature. Take 1.0 kg of Jatropha cotyledon and disperse it in 10 L ethanol / water (95:5), and ultrasonically process it while stirring. The ultrasonic power is 500 W and the ultrasonic time is 20 min. The residue was removed by filtration. After the obtained yellow solution was evaporated to remove ethanol, it was added to 950 mL of 10% acetic acid aqueous solution to completely dissolve the acidified bioalkaline in the water, and filtered with filter paper to obtain a yellow aqueous solution. This process is repeated twice, and the yellow water phases are merged together.
[0031] Add 10% sodium hydroxide aqueous solution to the filtered water phase to adjust the pH to about 10. Put the combined 3.0L aqueous phase in a suction flask containing filter cloth, vacuum pump to remove the residue, the pressure of th...
Example Embodiment
[0032] Example 3:
[0033] The jatropha cotyledon was dried in a dryer at 70°C for 12 hours. Use a pulverizer for crushing, sieving, size ≤3.0mm, and storage at room temperature. Take 2.0 kg of Jatropha cotyledon and disperse it in 20L ethanol / water (90:10), and ultrasonically process it while stirring. The ultrasonic power is 300W and the ultrasonic time is 30min. The residue was removed by filtration. After the obtained yellow solution was evaporated to remove ethanol, it was added to 1.9L of an 8% acetic acid aqueous solution to completely dissolve the acidified bioalkaline in the water, and filtered with filter paper to obtain a yellow aqueous solution. This process is repeated twice, and the yellow water phases are merged together.
[0034] Add 20% sodium hydroxide aqueous solution to the filtered water phase to adjust the pH to about 10. Put the combined 6.0L aqueous phase in a suction flask containing filter cloth, vacuum pump to remove the residue, the pressure of the va...
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