Staged extraction method for capsaicin
An extraction method and capsaicin technology, applied in the field of deep processing of agricultural and sideline products, can solve the problems of poor economy and achieve the effects of low cost, high extraction rate and simple process
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[0005] 1. Crush the pepper. The natural air-dried chili is pulverized into powder with a household pulverizer with a particle size of about 100 μm.
[0006] 2. Ethanol extraction. Adding 96% ethanol to the chili powder, stirring and heating extraction in a 40-80°C water bath, the extraction time is 1-4 hours, and the extract is filtered.
[0007] 3. Alkalization. The extract is evaporated at 40-80°C and a vacuum degree of 0.001-0.1 MPa to be concentrated by evaporation to form an extract. The extract is re-dissolved with 96% ethanol, and NaOH solution is added to alkalize to a pH of about 8-16.
[0008] 4. Extraction with n-hexane. The extract is mixed with n-hexane in a volume ratio of 1:1 to perform extraction for 1-4 hours, and then stand for 30 minutes to separate the lower water phase.
[0009] 5. Acidification. Adjust the pH of the aqueous phase to <11 with hydrochloric acid.
[0010] 6. Extraction with butyl acetate. The volume ratio of ethyl acetate to the water phase was ...
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