Isothermal pressure-changing secondary refining process for preparing high-quality silkworm chrysalis oil by using reeling silk leftover silkworm chrysalises

Abstract

The invention relates to an isothermal pressure-changing secondary refining process for preparing high-quality silkworm chrysalis oil by using reeling silk leftover silkworm chrysalises. The process comprises the following five process steps of: firstly, taking the reeling silk leftover silkworm chrysalises, removing impurities and crushing the reeling silk leftover silkworm chrysalises; secondly, performing hypercritical CO2 fluid extraction; thirdly, separating crude silkworm chrysalis oil; fourthly, performing isothermal pressure-changing secondary refining of the silkworm chrysalis oil; and fifthly, separating the high-quality silkworm chrysalis oil. The invention provides a process for extracting and refining the high-quality silkworm chrysalis oil, which completely has no organic solvent residues, does not destroy oil and fat active components, is simple to operate, can well reduce the price of fatty acid, and can perform decolorization and deodorization; the process solves the technical bottleneck that the inherent fish stench of the silkworm chrysalis oil is difficult to remove and the acid value is too high in the extraction, the development and the utilization of the silkworm chrysalis oil, provides a precious raw material for the developments of related products for preventing atheoscleorsis, reducing blood fat, protecting the liver, postponing senility and the like, and truly changes wastes into valuable.

Description

technical field [0001] The invention relates to a novel extraction and refining process of high-quality silkworm chrysalis oil without fishy smell. More specifically, the silkworm chrysalis leftovers from a silk reeling factory are used as raw materials, and 99.9% non-toxic, odorless and tasteless food-grade carbon dioxide is used as a solvent for extraction. silkworm chrysalis oil, and adopts new supercritical CO 2 Fluid technology performs isothermal and pressure-changing secondary treatment, deacidification, decolorization, deodorization and other treatments to obtain a new process of high-quality silkworm chrysalis oil, and evaluates its function through animal in vivo tests, which belongs to the field of waste recycling and silkworm chrysalis deep processing. Background technique [0002] Silkworm chrysalis is a traditional Chinese medicinal material with the same origin as medicinal food. It has been known for its functions of promoting body fluid and relieving cough, ...

AI Technical Summary

Problems solved by technology

[0004] However, because silkworm chrysalis has a special fishy smell, the processing and utilization of silkworm chrysalis and silkworm chrysalis oil are seriously restricted. At present, the comprehensive development and application of silkworm chrysalis and related products are mainly processed from fresh silkworm chrysalis, and seldom involves waste from silk reeling factories. In the deep processing of raw silkworm chrysalis, a very small part of leftover silkworm chrysalis is also used to extract silkworm chrysalis oil, but because the method used is mainly the traditional organic solvent extraction method, there are problems such as organic solvent residues and difficult to remove fishy smell

In recent years, supercritical carbon dioxide (CO2) of silkworm chrysalis oil has also appeared. 2 ) fluid extraction and organic solvent as supercritical carbon dioxide (CO 2 ) fluid extraction, but the silkworm chrysalis used in these processes may not be the leftover silkworm chrysalis after reeling, and more importantly, there are still problems such as strong fishy smell and high acid value without further refining treatment, or supercritical carbon dioxide (CO 2 ) fluid extraction to obtain silkworm chrysalis crude oil, using traditional oil refining processes such as deacidification and deodorization, not only cannot completely solve the problem of fishy smell, but also the yield is low, and the refining process is complicated, which affects the quality of silkworm chrysalis oil. If there are problems such as organic solvent residues in the oil, if it is food, medicine and other raw materials, it will cause serious damage to the human body, which also hinders the development and utilization of silkworm chrysalis oil.

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