Carotenoid compound derived from plant source and containing natural astaxanthin as well as preparation method and composition of carotenoid compound
A carotene and compound technology, applied in the field of biochemistry, can solve the problem of low carotenoid content in oleoresin, and achieve the effect of being suitable for large-scale commercial production and convenient operation
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Embodiment 1
[0070] Get Marigold officinalis extract (Calendula officinalis extract is obtained after the dry granules of Calendula officinalis are leached with a mixed solvent of propane and butane and the solvent is volatilized.) 50g (UV content 10.5wt%), added to 2500ml In absolute ethanol, heat up to 75°C under stirring, keep warm for 1.0hr to fully dissolve the side calendula extract, add dropwise 432ml of NaOH solution with a mass concentration of 45% (w / w), after the dropwise addition is completed, the reaction is mixed The alkali concentration in the solution was 2.0 mol / L, and the reaction was stirred at 75° C. for 4.0 hr. Get 5000ml of deionized water and 1000ml of ethanol into the reaction solution, after slow stirring for 1.0hr, it can be seen that dark red crystals precipitate out, filter, filter cake with ethanol and deionized water (the ratio of ethanol and deionized water is 2:1 ) mixed solution was rinsed twice, using 600ml of solvent each time, and the obtained crystals w...
Embodiment 2
[0080] Get 100g of Marigold officinalis extract (UV content 10.5wt%), join in the 3000ml glycerol, be warming up to 60 ℃ under the stirring situation, keep warm for 1.0hr and make the calendula officinalis extract fully dissolve, the mass concentration of dripping is 25% (w / w) CH 3 1000ml of ONa solution, after the dropwise addition is completed, the alkali concentration in the reaction mixture solution is 1.16mol / L, and the reaction is stirred at 60°C for 0.5hr. Get 6000ml of deionized water and 1000ml of glycerol and join in the reaction solution, after stirring at a slow speed for 1.0hr, it can be seen that dark red crystals are separated out, filter, and the filter cake uses glycerol and deionized water (the ratio of glycerol and deionized water (3:1) mixed solution was rinsed three times, using 500ml of solvent each time, and the obtained crystals were dried in a vacuum environment to finally obtain 4.8g of dark purple carotenoid crystals.
[0081] The maximum absorption...
Embodiment 3
[0086] Take 100kg of Marigold officinalis extract (UV content 10.5wt%), add it to 5000L propylene glycol, fully disperse the extract while stirring at 25°C, add dropwise 123L of KOH solution with a mass concentration of 25% (w / w) , after the dropwise addition was completed, the reaction was stirred at 25° C. for 2.5 hr. Sampling by HPLC analysis, it was found that the reaction was not complete, and continued to react for 3.5 hours. After the reaction was monitored by HPLC, 5000L of deionized water and 500L of propylene glycol were added to the reaction solution to terminate the reaction. After stirring at a slow speed for 1.0 hours, dark red crystals could be seen. , pressure filtration, the filter cake was rinsed twice with a mixture of propylene glycol and deionized water (the ratio of propylene glycol and water is 2:1), each time the solvent was 600L, and the obtained crystals were dried in a vacuum environment to finally obtain 6.8Kg Dark purple carotenoid crystals.
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