Tomato leaf extract and application thereof in cosmetics
A tomato leaf and extract technology, applied in the field of cosmetics, to achieve the effect of expanding the development and application fields, low production costs, and promoting extraction and precipitation
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Embodiment 1
[0026] A preparation method of tomato leaf extract, comprising the following steps:
[0027] Step 1, crushing: crushing the dried tomato leaves to 100 mesh;
[0028] Step 2, crude extraction: prepare an aqueous solution of sodium bisulfite with a mass fraction of 0.1%, and then add ethanol until the volume concentration of ethanol is 30%, to obtain a solution. Add the solution to the crushed tomato leaf material in step 1, the mass ratio of the crushed material to the solution is 1:10-1:20, extract at 60-90°C for 4-6 hours, and repeat the extraction three times;
[0029] Step 3, filter and dry: cool the crude extract in step 2 to 20-30°C, filter out insoluble matter with a filter cloth of 1000-2000 mesh, and concentrate under reduced pressure to 1 / 5 to 1 / 10 of the volume of the extract in step 2 , and then vacuum-dried to obtain dry matter;
[0030] Step 4. Dissolving and refining: add the dry matter obtained in step 3 to 1,3-butanediol, the mass volume ratio of dry matter t...
Embodiment 2
[0033] A preparation method of tomato leaf extract, comprising the following steps:
[0034] Step 1, crushing: crushing the dried tomato leaves to 100 mesh;
[0035] Step 2, crude extraction: prepare an aqueous solution of sodium bisulfite with a mass fraction of 0.3%, and then add ethanol until the volume concentration of ethanol is 50%, to obtain a solution. Add the solution to the crushed tomato leaf material in step 1, the mass ratio of the crushed material to the solution is 1:10-1:20, extract at 60-90°C for 4-6 hours, and repeat the extraction three times;
[0036] Step 3, filter and dry: cool the crude extract in step 2 to 20-30°C, filter out insoluble matter with a filter cloth of 1000-2000 mesh, and concentrate under reduced pressure to 1 / 5 to 1 / 10 of the volume of the extract in step 2 , and then vacuum-dried to obtain dry matter;
[0037] Step 4: Dissolving and refining: add 1,3-butanediol to the dry matter obtained in step 3, the mass volume ratio of dry matter t...
Embodiment 3
[0039] A preparation method of tomato leaf extract, comprising the following steps:
[0040] Step 1, crushing: crushing the dried tomato leaves to 100 mesh;
[0041] Step 2, crude extraction: prepare an aqueous solution of sodium bisulfite with a mass fraction of 0.5%, and then add ethanol until the volume concentration of ethanol is 40%, to obtain a solution. Add the solution to the crushed tomato leaf material in step 1, the mass ratio of the crushed material to the solution is 1:10-1:20, extract at 60-90°C for 4-6 hours, and repeat the extraction three times;
[0042] Step 3, filter and dry: cool the crude extract in step 2 to 20-30°C, filter out insoluble matter with a filter cloth of 1000-2000 mesh, and concentrate under reduced pressure to 1 / 5 to 1 / 10 of the volume of the extract in step 2 , and then vacuum-dried to obtain dry matter;
[0043] Step 4. Dissolving and refining: add the dry matter obtained in step 3 to 1,3-butanediol, the mass volume ratio of dry matter t...
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