Preparation method of Roman chamomile extract
The invention relates to a technology for chamomile flower and extract, which is applied in the field of preparation of chamomile flower extract, and achieves the effects of simple and efficient preparation method, no residual organic solvent, and high extraction rate.
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Embodiment 1
[0034] Embodiment 1: a kind of preparation method of white flower chamomile flower extract, comprises following preparation steps:
[0035] (1) pulverization: the white chamomile chrysanthemum is pulverized, and the obtained particle diameter is the superfine powder of the white chamomile chrysanthemum of 0.3mm;
[0036] (2) Extraction: mix white chamomile superfine powder with 65% ethanol solution at a weight ratio of 1:5, heat and reflux for extraction 3 times at a heating temperature of 65°C and a heating time of 2 hours, using a 0.22 μm The microporous filter membrane of pore diameter is filtered, obtains extract;
[0037] (3) Using a temperature of 30° C. and a pressure of -0.07 MPa, the extract was concentrated under reduced pressure to obtain a chamomile chrysanthemum flower extract.
Embodiment 2
[0038] Embodiment 2: a kind of preparation method of white flower chamomile flower extract, comprises following preparation steps:
[0039] (1) pulverization: the white chamomile flower is pulverized and processed, and the obtained particle diameter is the superfine powder of the white chamomile flower of 0.4mm;
[0040] (2) Extraction: mix white chamomile superfine powder with 65% ethanol solution at a weight ratio of 1:5, heat and reflux for extraction 3 times at a heating temperature of 65°C and a heating time of 2 hours, using a 0.22 μm The microporous filter membrane of pore diameter is filtered, obtains extract;
[0041] (3) Using a temperature of 30° C. and a pressure of -0.07 MPa, the extract was concentrated under reduced pressure to obtain a chamomile chrysanthemum flower extract.
Embodiment 3
[0042] Embodiment 3: a kind of preparation method of white flower chamomile flower extract, comprises following preparation steps:
[0043] (1) pulverization: the white chamomile chrysanthemum is pulverized, and the obtained particle diameter is the superfine powder of the white chamomile chrysanthemum of 0.3mm;
[0044] (2) Extraction: mix white chamomile superfine powder with 75% ethanol solution at a weight ratio of 1:7, heat and reflux for extraction 4 times at a heating temperature of 75°C and a heating time of 2 hours, using a 0.22 μm The microporous filter membrane of pore diameter is filtered, obtains extract;
[0045] (3) Using a temperature of 30° C. and a pressure of -0.07 MPa, the extract was concentrated under reduced pressure to obtain a chamomile chrysanthemum flower extract.
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