Natural pure plant composition preservative and application thereof to cosmetics
A technology of natural preservatives and compositions, applied in cosmetics, cosmetic preparations, cosmetic preparations, etc., can solve the problem that preservatives cannot achieve preservative effects and other problems
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[0042] One, the preparation method of 4 kinds of extracts
[0043] 1), the preparation of pomelo (CITRUS GRANDIS) fruit extract
[0044] Weigh and crush 3.75kg pomelo fruit, dissolve it with disodium hydrogen phosphate-citric acid buffer solution (pH 4.4) to 5L, then add 0.15kg pectinase to 4L pomelo fruit liquid, mix well and place the mixture in Carry out hydrolysis in a water bath at 50°C. After reacting for 180 minutes, quickly heat it at 100°C for 10 minutes. After cooling, centrifuge at 5000r / min for 15 minutes. Concentrate the supernatant to 1 / 2 of the original volume to obtain pomelo fruit hydrolysis. liquid, keep refrigerated.
[0045] 2), preparation of peony (PAEONIA SUFFRUTICOSA) root bark extract
[0046] Weigh 30kg of peony root powder with a balance, put it into the extraction kettle, add 240 80% ethanol according to the material-liquid ratio of 1:8 (W / V), and place them in a 90°C constant temperature water tank for reflux extraction for 3 hours; residue, the...
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