Formula and extraction process of composite natural purple pigment

Abstract

The invention discloses a formula of a composite natural purple pigment. The composite natural purple pigment is prepared from 250 g of beetroot, 25 g of clitoria ternatea flowers, 25 g of peeled lemons and 1,500 g of water. An extraction process comprises the following steps that the beetroot is washed to completely remove sand, peeling is not needed, the air-dried beetroot and peeled lemons arejuiced and filtered by a 100-mesh fine sieve, then a mixture is put into a pot to be boiled with a big fire and then concentrated with a small fire to the weight required by the formula, and after natural precipitation, an uppermost pure part is taken for use; fresh red-pulp dragon fruits are peeled, diced, juiced and then filtered by the 100-mesh fine sieve, a filter residue is put into the pot to be boiled with a big fire and then concentrated with a small fire to the weight required by the formula, and after natural precipitation, an uppermost pure part is taken for use; water which is 20 times the weight of the clitoria ternatea flowers is added to the clitoria ternatea flowers, after a clitoria ternatea flower liquid is boiled with a big fire, cooking is conducted with a small fire for 10 minutes, sieving is conducted after braising is conducted for 20 minutes, the clitoria ternatea flower liquid continues to be cooked to 1/3 of the original volume with a big fire and then is cooked to be in a thick state with a small fire, finally, natural precipitation is conducted for at least 60 minutes, and an upper pure part is taken for use; the extracted beetroot red pigment and clitoria ternatea flower blue pigment (a combination of red-pulp dragon fruit red and clitoria ternatea flower blue) are uniformly mixed and loaded into a sterilized dark essential oil bottle, and the purple natural pigment is formed.

Description

technical field [0001] The invention relates to the field of food pigments, more specifically, to a formula and extraction process of a composite natural purple pigment. Background technique [0002] Natural colors are food colors obtained from natural sources. Pigments mainly extracted from animal and plant tissues and microorganisms (cultivation), among which vegetable colorants account for the majority. Natural pigments not only have the function of coloring food, but also a considerable part of natural pigments have physiological activity. [0003] Natural pigments derived from roots, stems, leaves, flowers, fruits, animals, microorganisms, etc. of natural plants. Edible pigments are called edible natural pigments. From the perspective of the amount added, the proportion of food pigments in food is very small. For products, beverages, wines, cakes, candies, medicines, etc. are a few thousandths, a few ten thousandths or even a few hundred thousandths. Although natural...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the above problems such as the need for chemical reagents for direct extraction of purple pigment and the limitations of artificially synthesized purple pigment and biotechnology production of purple pigment, the present invention discloses a formula and extraction process for compounding natural purple pigment. The method uses clear water as a medium to extract compound natural purple pigments from raw materials, and solves the fading and discoloration problems caused by light and air oxidation of purple pigments in the past