Feed additive containing natural lutein and preparation method thereof
A feed additive and lutein technology, which is applied in the field of feed additives containing natural lutein and its preparation, can solve the problems of less marigold yellow pigment, loss of water-soluble nutrients and the like, and achieves oxidation prevention and good fluidity. and dispersive effects
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Embodiment 1
[0033] (1) Oil extraction to extract lutein and nutrients
[0034] Put 15 parts of fish oil into the steam pot, slowly add 8 parts of marigold petal powder, stir while heating, stop heating after raising the temperature to 75°C, keep warm and stir for 2 hours, and then stop heating to obtain the extract; among them, The fish oil is preferably refined winterized fish oil; the marigold petal powder is prepared by the following method: removing flower stem buds from freshly picked marigolds, drying the petals in the air for 8-10 hours, and crushing through a 100-mesh sieve.
[0035] (2) Separation of extract
[0036] The extraction solution obtained in step (1) was left to stand for 24 hours and then divided into upper and lower layers. First, the supernatant was extracted, and then the product in the lower layer was passed through a 300-mesh screen, squeezed and filtered, and the obtained filtrate was the same as the obtained product. The above supernatants are mixed to obtain ...
Embodiment 2
[0047] (1) Oil extraction to extract lutein and nutrients
[0048] Put 25 parts of soybean oil into a steam pot, slowly add 15 parts of marigold petal powder, stir while heating, stop heating after raising the temperature to 90°C, keep warm and stir for 4 hours, and then stop heating to obtain an extract; , the marigold petal powder is prepared by the following method: freshly picked marigolds are removed from flower stem buds, the petals are air-dried for 8-10 hours, and crushed through a 100-mesh sieve.
[0049] (2) Separation of extract
[0050] The extraction solution obtained in step (1) was left to stand for 24 hours and then divided into upper and lower layers. First, the supernatant was extracted, and then the product in the lower layer was passed through a 300-mesh screen, squeezed and filtered, and the obtained filtrate was the same as the obtained product. The above supernatants are mixed to obtain extraction oil;
[0051] (3) Preparation of oil phase
[0052] Mi...
Embodiment 3
[0061] (1) Oil extraction to extract lutein and nutrients
[0062] Put 20 parts of rapeseed oil into the steam pot, slowly add 10 parts of marigold petal powder, stir while heating, stop heating after raising the temperature to 80°C, keep warm and stir for 3 hours, and then stop heating to obtain the extract; Wherein, the marigold petal powder is prepared by the following method: freshly picked marigolds remove flower stem buds, air-dry the petals for 8-10 hours, and crush them through a 100-mesh sieve.
[0063] (2) Separation of extract
[0064] The extraction solution obtained in step (1) was left to stand for 24 hours and then divided into upper and lower layers. First, the supernatant was extracted, and then the product in the lower layer was passed through a 300-mesh screen, squeezed and filtered, and the obtained filtrate was the same as the obtained product. The above supernatants are mixed to obtain extraction oil;
[0065] (3) Preparation of oil phase
[0066] Mixi...
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