Technique for pretreatment and extraction of capsaicine with micro wave

Abstract

The invention discloses a technique for pretreatment and extraction of capsaicine with micro wave. Small red chilli of which the producing area is Chengdu in Sichuan is used as raw material, and the technique comprises the steps of baking and crushing the red chilli, and sieving with a 40-mesh standard sieve after removing seeds of the small red chilli to obtain dried chilli powder; adding acetone to the dried chilli powder; carrying out pre-treatment with micro wave; adding the pre-treated material into a soxhlet extractor, extracting for 3 hours at 50 DEG C, filtering, separating and concentrating under reduced pressure to obtain capsicum oleoresin; adding alcohol to the capsicum oleoresin for extracting to capsaicine resin; adding a sodium hydroxide aqueous solution to the capsaicine resin, adding normal hexane, and then adjusting the pH value to 3 with hydrochloric acid, and carrying out centrifugal separation, concentrating under reduced pressure, and drying to obtain the capsaicine product. The technique disclosed by the invention is easy to achieve industrial amplification production, and the prepared capsaicine product has the characteristics of fast extraction speed, high product purity and the like.

Description

technical field [0001] The invention belongs to the technical field of microwave radiation-assisted extraction, and in particular relates to a process for preparing capsaicin from natural peppers. Background technique [0002] Capsaicin (Capsaicin) is the main substance that causes pungent taste and biological activity in pepper, and its content in pepper is 0.1-1%. Gastrointestinal, appetite regulating, fat metabolism promoting, tearing and sneezing, rheumatism prevention and other effects, and it is also a new type of antifouling agent for marine environmental protection coatings, which has a good repelling effect on the fouling organisms on the surface of ships and various underwater facilities. It shows good antifouling effect, and is non-toxic and environmentally friendly. It is an ideal marine antifouling agent. [0003] At present, the extraction methods of capsaicin mainly include solvent extraction and supercritical fluid extraction. Among them, the supercritical ...

AI Technical Summary

Problems solved by technology

Among them, the supercritical fluid extraction method is not suitable for industrialization due to factors such as complicated operation, expensive equipment, and high cost, so its application field is limited; while the solvent extraction method is simple to operate and does not require high equipment, but the extraction time is long and the yield is high. The efficiency is low, and the amount of organic solvent required in the subsequent treatment process is large, which is not conducive to industrial production

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