Process for extracting capsanthin from fresh red peppers

Abstract

The invention relates to a process for extracting capsanthin from fresh red peppers, which comprises the working procedures of fresh pepper treatment, dilution, centrifugation, water separation and extraction, and specifically comprises the steps of removing stems and pedicles of the fresh red peppers, and grinding the fresh red peppers into pepper slurry by using a colloid mill; diluting the pepper slurry with deionized water to obtain a diluted solution; carrying out centrifugal separation on the diluted solution to obtain solid residues and centrifugate; mixing the centrifugate with acetone for three times to separate a third lower liquid layer; and adding super absorbent resin into the third lower liquid layer solution for dehydration, flushing the super absorbent resin with n-hexane and residual ointment after water washing, combining eluent, and distilling to obtain capsanthin. According to the invention, normal-temperature and normal-pressure extraction and preparation of capsanthin are achieved through the procedures of grinding, water dilution, centrifugal separation and extraction, the production environment is relatively safe, pepper dust is not generated, the working health of operators is guaranteed, and the process has the advantages of being easy to operate, environmentally friendly and healthy.

Description

technical field [0001] The invention relates to the technical field of capsicum extraction, in particular to a process for extracting capsicum from bright red peppers. Background technique [0002] The chromogenic substance of pepper is mainly capsanthin. Capsanthin is a carotenoid pigment present in peppers, accounting for 0.2%-0.5% of pepper peels. Carotenoids are very important to human health, mainly to prevent the oxidation of "bad" cholesterol, protect blood vessels, and avoid plaque and vascular lesions. At present, the extraction method of capsicum is mainly based on organic solvents such as n-hexane as the extraction medium, with dried chili as the main raw material, and is completed through a series of processes such as dried chili crushing, granulation, extraction, and distillation. Such extraction processes exist as follows Disadvantage: Dried chili crushing is dust and debris that can easily cause harm to workers’ respiratory tracts, glasses and other organs. ...

AI Technical Summary

Problems solved by technology

At present, the extraction method of capsicum is mainly based on organic solvents such as n-hexane as the extraction medium, with dried chili as the main raw material, and is completed through a series of processes such as dried chili crushing, granulation, extraction, and distillation. Such extraction processes exist as follows Defect: Dried chili crushing is dust and debris that can easily cause harm to workers’ respiratory tracts, glasses and other organs. It belongs to the category of occupational disease hazards; the whole process needs to be completed under airtight and negative pressure conditions. Once leakage occurs, it is easy to cause safety accidents