Preparation technology of natural Chinese pearleaf crabapple food coloring

Abstract

The invention discloses a preparation technology of a natural Chinese pearleaf crabapple food coloring. A preparation device of the natural Chinese pearleaf crabapple food coloring is used in the technology, the device comprises a cylindrical shell fixedly mounted on a first bracket and a fixed rack fixedly mounted on a second bracket and located above the cylindrical shell, a cylindrical chamberwith an upward opening is arranged in the cylindrical shell, a tapered chamber is arranged at the bottom of the cylindrical chamber, an outlet communicated with the outside is arranged at the bottom of the tapered chamber, a filter plate is fixedly mounted at the junction of the cylindrical chamber and the tapered chamber, a plurality of first filter holes which are communicated up and down are arranged in the filter plate, a lifting cover capable of sliding up and down is mounted in the cylindrical chamber, a cover chamber with an upward opening is arranged in the lifting cover, a top cover is fixedly mounted at the top of the cover chamber, a central shaft is rotatably mounted between the top cover and the cover chamber, and a plurality of second filter holes staggered from the first filter holes and communicated up and down are arranged in the bottom wall of the cover chamber.

Description

technical field [0001] The invention relates to the field of pigment extraction and processing, in particular to a preparation process of natural red food pigment. Background technique [0002] Food coloring is a food additive for the purpose of food coloring, which can be divided into two categories: synthetic and natural according to its source. Most of the synthetic pigments are coal tar dyes, which not only have no nutritional value, but also may bring toxic substances in the synthesis process, which is harmful to human health. Therefore, the use of synthetic pigments has become less and less, and the control has become stricter and stricter. Natural pigments extracted from natural fabrics are non-toxic and harmless, and have gradually replaced synthetic pigments. It is mainly soaked with dilute hydrochloric acid and then filtered. It is an important step in the extraction process of natural bonus food coloring. The traditional soaking and filtering process requires m...

AI Technical Summary

Problems solved by technology

Therefore, the use of synthetic pigments has become less and less, and the control has become stricter. Natural pigments extracted from natural fabrics are non-toxic and harmless, and have gradually replaced synthetic pigments. It is mainly soaked in dilute hydrochloric acid and then filtered. It is an important step in the extraction process of natural bonus food coloring. The traditional soaking and filtering process requires manpower to complete. It is time-consuming, laborious, inefficient, and cannot meet the needs of use.

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