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Preparation process of Gardenia jasminoides Var. radicans yellow pigment

A technology of water gardenia and yellow pigment, which is applied in the field of water gardenia yellow pigment preparation, can solve the problems such as the difficulty of international competition of water gardenia yellow pigment, and achieve the effects of high extraction rate and color value, high pigment purity, and solvent saving

Inactive Publication Date: 2009-02-25
张国平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult for the water gardenia yellow pigment produced in my country to participate in international competition.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Ripe fresh gardenia jasminoides are selected, leaf impurities are removed, dried until the moisture content is not more than 10%, broken into flaky fruit pieces with a diameter of 3 to 5 mm, and then pressed into 300 kg flaky fruit pieces each time Put it into a multi-functional extraction tank, add ethanol with a content of 60%, the temperature in the tank is 48°C, and the time is 125 minutes for leaching, and then the ethanol is recovered after being filtered by a 120-mesh centrifuge. There are two methods for ethanol recovery: The first is the gel chromatography reconcentration method. After static precipitation in the storage tank for 24 hours, the float and sediment are removed, and then the temperature in the multifunctional concentrator is 48°C, and the time is 390 minutes. Concentrate and recover ethanol to reach the feed liquid The specific density is 1.11-1.13; the second is the ultrafiltration refining method, and the ultrafiltration time is 220-260 minutes to...

Embodiment 2

[0014] Ripe fresh gardenia jasminoides are selected, leaf impurities are removed, dried until the moisture content is not more than 10%, broken into flaky fruit pieces with a diameter of 3 to 5 mm, and then pressed into 300 kg flaky fruit pieces each time Put it into a multi-functional extraction tank, add ethanol with a content of 60%, the temperature in the tank is 50°C, and the time is 120 minutes to extract, and then carry out ethanol recovery after filtering through a 120-mesh centrifuge. There are two methods for ethanol recovery: One is the gel chromatography reconcentration method. After 24 hours of static precipitation in the storage tank, the floating matter and sediment are removed, and then the temperature in the multifunctional concentrator is 50 ° C, and the time is 360 minutes. The specific density of the liquid is 1.11-1.13; the second is the ultra-filtration refining method, the time in the ultra-filter is 220-260 minutes, and the ethanol is recovered by ultra-...

Embodiment 3

[0016] Pick ripe fresh gardenia fruits, remove leaf impurities, dry until the water content is not more than 10%, break them into flaky fruit pieces with a diameter of 3 to 5 mm, and then place them in 300 kg flaky fruit pieces each time. into a multi-functional extraction tank, add ethanol with a content of 60%, the temperature in the tank is 52°C, and the time is 115 minutes to extract, and then carry out ethanol recovery after filtering through a 120-mesh centrifuge. There are two methods for ethanol recovery, one It is a gel chromatography re-concentration method. After 24 hours of static precipitation in the storage tank, the float and sediment are removed, and then the temperature in the multifunctional concentrator is 52 ° C, and the time is 330 minutes. Concentrate and recover ethanol to achieve a solid-liquid ratio The density is 1.11-1.13; the second is the ultra-filtration refining method, and the ultra-filtration time is 220-260 minutes in the ultra-filtration machi...

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Abstract

The present invention discloses preparation process of bigflower cape jasmine fruit yellow pigment. Mature bigflower cape jasmine fruit is first treated through stoving, crushing, alcohol leaching, filtering, recovering alcohol, spray drying and re-crushing, then extracted inside a multifunctional extracting tank with alcohol solution at 46-54 deg.c, and finally spray dried in a spray drying machine to obtain bigflower cape jasmine fruit yellow pigment product with water content of 0.50-0.72. The bigflower cape jasmine fruit yellow pigment is one kind one natural food color with A238 / A440 ratio not higher than 0.20, extracting rate up to 92.1 % and color number of 50.5.

Description

Technical field: [0001] The invention relates to a method for extracting and preparing effective plant components, in particular to a method for preparing water gardenia yellow pigment. Background technique: [0002] The international market has a very large demand for natural food coloring, which has good development space and broad market prospects. Gardenia water natural food coloring is a new type of natural food coloring popular in the world in recent years. It has the advantages of easy to obtain raw materials, low price, good product safety and stability, easy to dissolve in water, and convenient to use. The quality of the water gardenia yellow pigment prepared by the preparation method of the prior art in our country is not ideal, and contains a large amount of impurity geniposide. Studies have shown that the main component of water gardenia yellow pigment is crocin (the maximum absorption wavelength of the aqueous solution is 440 nanometers), when the absorbance va...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00
Inventor 张国平
Owner 张国平
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