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Prepn process of selenium-rich edible fungus with activated selenium ore as selenium source

A technology for selenium-enriched edible fungi and activation of selenium ore is applied in the field of biotransformation of selenium resources, which can solve problems such as poor physiological activity, achieve good economic benefits, and realize the effects of transformation and enrichment.

Inactive Publication Date: 2007-01-03
JIANGNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that the physiological activity of organic selenium enriched by this method is not as good as that of organic selenium products extracted from crops grown on selenium-rich soil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1) Activation of selenium ore:

[0024] Crush and sieve the selenium ore, the fineness of the ore powder is 40 mesh; weigh 500g of the selenium ore powder, add 1500mL of ammonia water with a concentration of 0.60mol / L, stir at room temperature for 24 hours, then heat the solution to boil and boil to one third of the volume, then naturally cooled to room temperature and added 1000mL of ammonia water with a concentration of 0.60mol / L, then boiled to one third of the volume and cooled to room temperature, and added 1000mL for the second time with a concentration of 0.60mol / L Ammonia water and continue to heat to boil and cook to 1 / 3 volume stand-by;

[0025] Add 1000mL of sodium hydrogen phosphate with a concentration of 0.2mol / L - sodium dihydrogen phosphate buffer solution (pH = 8.5), heat to boil and cook until the total volume of the mixture is 1000mL, stop heating, cool to room temperature and centrifuge in a centrifuge (3000r / min) 15min, the supernatant obtained is ...

Embodiment 2

[0033] 1) Activation of selenium ore:

[0034] Crush and sieve the selenium ore, the fineness of the ore powder is 80 mesh; weigh 500g of the selenium ore powder, add 1500mL of ammonia water with a concentration of 0.60mol / L, stir at room temperature for 36 hours, heat the solution to boiling and cook to one third of the volume, then naturally cooled to room temperature and added 1000mL of ammonia water with a concentration of 0.60mol / L, then boiled to one third of the volume and cooled to room temperature, and added 1000mL for the second time with a concentration of 0.60mol / L Ammonia water and continue to heat to boil and cook to 1 / 3 volume stand-by;

[0035] Add 1000mL of sodium hydrogen phosphate with a concentration of 0.2mol / L - sodium dihydrogen phosphate buffer solution (pH = 8.5), heat to boil and cook until the total volume of the mixture is 1000mL, stop heating, cool to room temperature and centrifuge in a centrifuge (3000r / min) 15min, the supernatant obtained is th...

Embodiment 3

[0043] Crush and sieve the selenium ore, the fineness of the ore powder is 180 mesh; weigh 500g of the selenium ore powder, add 1500mL of ammonia water with a concentration of 0.60mol / L, stir at room temperature for 48 hours, then heat the solution to boil and boil to one third of the volume, then naturally cooled to room temperature and added 1000mL of ammonia water with a concentration of 0.60mol / L, then boiled to one third of the volume and cooled to room temperature, and added 1000mL for the second time with a concentration of 0.60mol / L Ammonia water and continue to heat to boil and cook to 1 / 3 volume stand-by;

[0044] Add 1000mL of sodium hydrogen phosphate with a concentration of 0.2mol / L - sodium dihydrogen phosphate buffer solution (pH = 8.5), heat to boil and cook until the total volume of the mixture is 1000mL, stop heating, cool to room temperature and centrifuge in a centrifuge (3000r / min) 15min, the supernatant obtained is the activated selenite aqueous solution ...

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Abstract

The preparation process of selenium-rich edible fungus with activated selenium ore as selenium source belongs to the field of biological selenium resource converting technology. Natural selenium ore as the selenium source is crushed, activated and water extracted; the selenium containing water solution is used in compounding culture medium; and edible fungus is cultured to realize selenium conversion and enrichment, with the selenium-enriching cultured mycelium containing organic selenium in 50-600 mg / kg. The present invention realizes the conversion and enrichment of organic selenium while producing edible fungus with rich active polysaccharide content.

Description

technical field [0001] A method for preparing a selenium-enriched edible fungus product using activated selenium ore as a selenium source. The present invention uses activated selenium ore as a selenium source and uses edible fungi to transform and enrich organic selenium. The preparation method of a biological selenium-enriched product belongs to Selenium resource biotransformation technology field. Background technique [0002] Selenium is an indispensable trace element for human life. It has dual functions of preventing and treating cancer. Many acute and chronic diseases such as anemia, coronary heart disease, Kashin-Beck disease, Keshan disease and diabetes are also closely related to selenium deficiency. At present, there are more than 40 countries and regions lacking selenium in the world, and there are 715 counties and cities in my country, and about 100 million people are deficient in selenium. Effective dietary selenium supplementation has become an important issu...

Claims

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Application Information

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IPC IPC(8): C12N1/14A01G1/04C05D9/02
Inventor 张连富
Owner JIANGNAN UNIV
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