Natural cobalt iron chlorophyllin and preparation method thereof

A technology of chlorophyll and iron-cobalt, which is applied in the field of natural pigment salt and its preparation, and achieves the effects of simple and convenient preparation method, high yield and low price

Inactive Publication Date: 2012-10-31
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After searching, there is no report on the technical scheme of natural iron chlorophyllin cobalt salt and its derivatization with chlorophyllin iron sodium salt to chlorophyll iron cobalt salt

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  • Natural cobalt iron chlorophyllin and preparation method thereof
  • Natural cobalt iron chlorophyllin and preparation method thereof
  • Natural cobalt iron chlorophyllin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Sodium iron chlorophyllin dissolves in water with a concentration of 0.67g / 100ml dark green solution, and cobalt salt dissolves in water as a pink liquid. The cobalt salt solution was added to the sodium iron chlorophyllin salt, stirred at a speed of 1000r / min, fully reacted at room temperature, and aged at room temperature 25°C for 3h. Separation by filtration and drying at 80°C to obtain black (black-green) chlorophyll iron-cobalt salt. Carry out the measurement of each index. Wherein, by AVATAR360 type Fourier transform infrared spectrometer, UV7652 spectrophotometer, obtain chlorophyll iron sodium salt and chlorophyll iron cobalt salt spectrogram (see attached Figure 1~4 ), and analyzed and compared, it was determined that the product was chlorophyll iron cobalt salt.

[0027] The calculated yield was 81%.

Embodiment 2

[0029] Chlorophyll iron sodium salt and cobalt salt are dissolved in water respectively. Add the cobalt salt solution to the sodium ferric chlorophyllin. Stir at a speed of 800r / min, make it fully react at room temperature, and age at room temperature 21°C for 9h. Separate by filtration and dry at 60°C to obtain black (black-green) chlorophyll iron-cobalt salt. Carry out the measurement of each index.

[0030] The calculated yield was 90%.

Embodiment 3

[0032] Chlorophyll iron sodium salt and cobalt salt are dissolved in water respectively. Add the cobalt salt solution to the sodium ferric chlorophyllin. Stir at a speed of 1200r / min, and age at room temperature 17°C for 7h. Separation by filtration and drying at 50°C to obtain black (black-green) chlorophyll iron-cobalt salt. Carry out the measurement of each index.

[0033] The calculated yield was 86%.

[0034] Salt formation analysis of chlorophyll iron and cobalt:

[0035] 1. Salt-forming reaction equation

[0036]

[0037] 2. Analysis of experimental principles

[0038] The iron in the center of the chlorophyll iron sodium salt ring is relatively stable, but the concentration and medium conditions controlled in this experiment do not meet the requirements for the center metal to be replaced. In addition, the distance between the center of the porphyrin ring and the N atom in the molecular structure of iron chlorophyllin sodium salt is 204pm, and the radius of th...

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Abstract

The invention discloses a natural cobalt iron chlorophyllin and a preparation method thereof. According to the method, the natural cobalt iron chlorophyllin is directly synthesized from sodium iron chlorophyllin and cobalt salt used as raw materials by a one-step solution method. The preparation method comprises the following steps: respectively dissolving the sodium iron chlorophyllin and cobalt salt in water according to the mass ratio, adding the cobalt salt solution into the sodium iron chlorophyllin solution, and magnetically stirring at 1000 r/min or so to sufficiently react at room temperature; and aging, separating, drying at 50-80 DEG C to obtain the black (atrovirens) cobalt iron chlorophyllin. The computation yield is 80-90%. The color variation, precipitate generation, UV spectrum and IR spectrum in the preparation process indicate that the product is cobalt iron chlorophyllin. The preparation method is simple and convenient, and has the advantages of low cost, no byproduct generation, no environment pollution and high yield. The raw materials required by synthesis are accessible, cheap, non-toxic and harmless; and thus, the invention has wide development and application prospects in the aspects of health care medicines requiring microelement supplementation and the like.

Description

technical field [0001] The invention relates to a natural pigment salt and a preparation method thereof, in particular to a preparation method of natural iron-cobalt chlorophyll salt. The obtained natural chlorophyll iron cobalt salt is also called cobalt iron chlorophyllin. Background technique [0002] Chlorophyll and its derivatives have attracted more and more attention from experts and scholars because of their biologically active functions and good optical properties. Its derivatives are rich in types, which can be divided into chlorophyll degradation products, metal chlorophyll derivatives, and other derivatives. They are highly functional and widely used, and have development prospects in industries such as chemical industry, medicine, food health care, and materials. The chlorophyll iron-cobalt salt synthesized in this patent belongs to a kind of metal chlorophyll derivative, which preserves the iron element in the center of the chlorophyll iron sodium salt, and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/22
Inventor 刘淑萍王燕闫路省
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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