Composition for reliving asthenopia, as well as preparation method and application thereof
A technology for relieving visual fatigue and a composition, applied in the field of relieving visual fatigue, can solve the problems of uneven effects, toxic and side effects, etc., and achieve the effect of improving visual acuity, no toxic and side effects, and easy-to-obtain raw materials
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Embodiment 1
[0020] A composition capable of alleviating visual fatigue, comprising the following raw materials in terms of mass percentages: 7% lutein, 1% usnic acid, 8% beer yeast extract, 10% sea fennel extract, and 5% bamboo vinegar , and the balance is auxiliary materials; auxiliary materials are trehalose and coriander oil.
[0021] The preparation method of the sea fennel extract is as follows: after the sea fennel is naturally dried and crushed, the ethanol-water solution of 1 times the weight of the sea fennel is added, and the extract is extracted at 30° C. for 5 hours; the extract is obtained by filtration, and the extract is concentrated under reduced pressure To obtain the extract, the crude extract of sea fennel is obtained; the crude extract of sea fennel is freeze-dried at -20°C to obtain dry powder of sea fennel extract; the volume ratio of ethanol to water is 1:2.
[0022] A preparation method of a composition capable of relieving visual fatigue, comprising the following ...
Embodiment 2
[0024] A composition capable of relieving visual fatigue, comprising the following raw materials in terms of mass percentages: 15% lutein, 4% usnic acid, 17% beer yeast extract, 18% sea fennel extract, and 11% bamboo vinegar , and the balance is auxiliary materials; auxiliary materials are trehalose and coriander oil.
[0025] The preparation method of the sea fennel extract is as follows: after the sea fennel is naturally dried and crushed, the ethanol-water solution with 3 times the weight of the sea fennel is added, and the extract is extracted at 40° C. for 8 hours; the extract is obtained by filtration, and the extract is concentrated under reduced pressure To obtain the extract, the crude extract of sea fennel is obtained; the crude extract of sea fennel is freeze-dried at -45°C to obtain dry powder of sea fennel extract; the volume ratio of ethanol to water is 1:3.
[0026] A preparation method of a composition capable of alleviating visual fatigue, comprising the follo...
Embodiment 3
[0028] A composition capable of alleviating visual fatigue, comprising the following raw materials in terms of mass percentages: 9% lutein, 2% usnic acid, 13% beer yeast extract, 15% sea fennel extract, and 9% bamboo vinegar , and the balance is auxiliary materials. The excipients are trehalose and coriander oil.
[0029] The preparation method of the sea fennel extract is as follows: after the sea fennel is naturally dried and crushed, the ethanol-water solution with 2 times the weight of the sea fennel is added, and the extract is extracted at 32°C for 7 hours; the extract is obtained by filtration, and the extract is concentrated under reduced pressure To obtain the extract, the crude extract of sea fennel is obtained; the crude extract of sea fennel is freeze-dried at -30°C to obtain dry powder of sea fennel extract; the volume ratio of ethanol to water is 1:2.
[0030] A preparation method of a composition capable of relieving visual fatigue, comprising the following ste...
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