Lutein ester and water-soluble lutein ester microcapsule, and preparation methods thereof
A technology of lutein ester and microcapsule, which is applied in the directions of microcapsule, capsule delivery, pharmaceutical formulation, etc., can solve the problem of high cost, and achieve the effects of low equipment requirements, easy storage, and high cost solution.
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Embodiment 1
[0036] Weigh 100g of marigold flower granules, put them into a 2L round bottom flask, add 1.5L of ethyl acetate, stir in a water bath at 85°C, keep warm and reflux, mix ethyl acetate and marigold flower granules to extract lutein esters and other fat-soluble substances, until reflux The ethyl acetate becomes colorless, which means the extraction is complete. The ethyl acetate is recovered to obtain the crude extract of lutein ester. The crude extract is washed with a mixture of ethylene glycol: propylene glycol = 1:1 for 3 times, and the detergent is recovered by vacuum heating. , adding a small amount of antioxidants and mixing to obtain lutein esters with a content of 48%.
Embodiment 2
[0038]Weigh 100g of marigold flower granules, put them into a 2L round bottom flask, add 1.5L of n-hexane, stir in a water bath at 80°C, keep warm and reflux, mix ethyl acetate with marigold flower granules to extract lutein esters and other fat-soluble substances, until the reflux Ethyl acetate becomes colorless, which means the extraction is complete. Recover the ethyl acetate to obtain the crude extract of lutein ester. Rinse the crude extract 7 times with a mixture of ethanol: propylene glycol = 5:1, heat in vacuum to recover the detergent, add a small amount of Antioxidants were mixed to obtain lutein esters with a content of 59.5%.
Embodiment 3
[0040] Weigh 100g of marigold flower granules, put them into a 2L round bottom flask, add 1.5L of acetone, stir in a water bath at 65°C, keep warm and reflux, mix pure ethyl acetate with marigold flower granules to extract lutein esters and other fat-soluble substances until reflux The ethyl acetate becomes colorless, which means the extraction is complete. The ethyl acetate is recovered to obtain the crude extract of lutein ester. The crude extract is washed with ethanol for 9 times, the detergent is recovered by vacuum heating, and a small amount of antioxidant is added to mix to obtain a content of 69%. of lutein esters (E1102).
[0041] Two, prepare water-soluble type lutein ester microcapsules by above-mentioned lutein ester
[0042] Example 1
[0043] Weigh 20 g of 48% lutein ester (E768) and 1 g of mixed natural vitamin E and place it in a beaker, add 40 g of soybean oil thereinto, place at 90° C. and stir and heat for 20 min to completely dissolve to obtain the lutein...
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