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Suaeda salsa seed haematochrome extraction process

A technology of Suaeda salsa and extraction process, which is applied in the direction of azo dyes, organic dyes, chemical instruments and methods, etc.

Inactive Publication Date: 2017-04-19
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the extraction of red pigment in Suaeda salsa seeds has not been reported so far

Method used

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  • Suaeda salsa seed haematochrome extraction process
  • Suaeda salsa seed haematochrome extraction process
  • Suaeda salsa seed haematochrome extraction process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A process for extracting red pigment from Suaeda salsa seeds, comprising the following steps:

[0035] 1) Weigh 0.1 g of the black seeds of Suaeda salsa and grind them fully in a mortar under liquid nitrogen.

[0036] 2) Add 3 mL of acetone for pre-extraction, the pre-extraction temperature is 30 ℃, and the time is 1 h.

[0037] 3) Add 5 mL of 5% hydrochloric acid-methanol solution to the residue.

[0038] 4) Extract in a water bath at 60 °C for 1.5 h, and control the ratio of solid to liquid to 1 g: 100 mL.

[0039] 5) Repeat the water bath extraction once, with the same solid-liquid ratio setting as in step (4).

[0040] 6) Combine the filtrates and dry to obtain a sample containing the red pigment of Suaeda salsa seeds.

[0041] When measuring the red pigment content, step 6): Combine the filtrates and dilute to 10 mL, so as to obtain the maximum red pigment content in the black seeds of Suaeda salsa.

Embodiment 2

[0043] A process for extracting red pigment from Suaeda salsa seeds, comprising the following steps:

[0044] 1) Weigh 0.1 g of the black seeds of Suaeda salsa and grind them fully in a mortar under liquid nitrogen.

[0045] 2) Add 2.8 mL of acetone for pre-extraction, the pre-extraction temperature is 30 ℃, and the time is 1 h.

[0046]3) Add 5 mL of 4.5% hydrochloric acid-methanol solution to the residue.

[0047] 4) Extract in a water bath at 55 °C for 1.6 h, and control the ratio of solid to liquid as 1 g: 100 mL, 3 g: 100 mL, 5 g: 100 mL, and 7 g: 100 mL.

[0048] 5) Repeat the water bath extraction once, with the same solid-liquid ratio setting as in step (4).

[0049] 6) The filtrates were combined and dried to obtain a sample containing the red pigment of Suaeda salsa seeds. See figure 1 .

Embodiment 3

[0051] A process for extracting red pigment from Suaeda salsa seeds, comprising the following steps:

[0052] 1) Weigh 0.1 g of the black seeds of Suaeda salsa and grind them fully in a mortar under liquid nitrogen.

[0053] 2) Add 2.8 mL of acetone for pre-extraction, the temperature of acetone pre-extraction is 30 ℃, and the time is 1 h.

[0054] 3) Add 5 mL of 4.5% hydrochloric acid-methanol solution to the residue.

[0055] 4) Extract in a water bath at 55 °C for 1.6 h, and control the ratio of solid to liquid to 1.5 g: 100 mL.

[0056] 5) Repeat the water bath extraction once, with the same solid-liquid ratio setting as in step (4).

[0057] 6) Combine the filtrates and dry to obtain a sample containing the red pigment of Suaeda salsa seeds.

[0058] To set up a comparative example, just delete the acetone pre-extraction step in step 2) of Example 2. The effect of acetone pre-extraction on the content of red pigment in the black seeds of Suaeda salsa figure 2 .

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Abstract

The invention discloses a suaeda salsa seed haematochrome extraction process, which comprises the following steps of (1) fully grinding suaeda salsa seeds under liquid nitrogen; (2) adding acetone for pre-extracting, and filtering after pre-extracting so as to obtain residues; (3) adding a hydrochloric acid-methyl alcohol mixed solution into the residues, and leaching and extracting, wherein the leaching and extracting temperature is ranged from 55 to 65 DEG C, the leaching and extracting time is ranged from 1.2 to 1.8h, and the solid-liquid rate is (1 to 2)g:100mL; (4) repetitively leaching and extracting for 1 time, wherein the solid-liquid rate is (1 to 2)g:100mL; and (5) merging twice leached and extracted filter liquors, and drying to obtain a sample containing suaeda salsa seed haematochrome. By applying the method for extracting the suaeda salsa seed haematochrome, the materials can be acquired conveniently, the flow is simple, the operability is high, and the cost is lower; the extraction method is simple, convenient and easy to implement; and the extraction rate and the purity are higher.

Description

technical field [0001] The invention relates to the technical field of plant extraction, in particular to a process for extracting red pigment from Suaeda salsa seeds. Background technique [0002] Globally, soil salinization and secondary salinization are widespread. China is one of the countries with a lot of saline-alkali land in the world, and the salinization phenomenon in coastal areas is particularly serious. Halophytes can grow and develop normally and complete their life cycle in a salinized environment, so they must have their specific salt-tolerant methods. Suaeda salsa is a typical dilute-salt annual halophyte widely distributed in the Yellow River Delta region. Its black seeds have hard black seed coats. Such seeds can be stored for a long time in the seed resource bank, so the salt The pigment accumulation in the seed coat of the black seed of Suaeda salsa is of great significance in adapting to the environment and protecting the seeds. [0003] Studies have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00C09B67/54
CPCC09B61/00C09B67/0096
Inventor 郭建荣索姗姗王宝山
Owner SHANDONG NORMAL UNIV
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