Preparation method of yeast culture capable of improving yolk color, yeast culture and application thereof

A technology of yeast culture and egg yolk color, applied in the application, animal feed, animal feed and other directions, can solve the problems of high cost, harmful effects on the health of consumers, and increase the cost of laying hens, so as to facilitate absorption and promote animal health. , the effect of improving immunity

Inactive Publication Date: 2019-06-14
湖南普菲克生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, industrial pigments contain toxic and harmful substances, which remain in eggs and have harmful effects on the health of eaters; marigolds are rich in lutein, and compared wi...

Method used

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  • Preparation method of yeast culture capable of improving yolk color, yeast culture and application thereof
  • Preparation method of yeast culture capable of improving yolk color, yeast culture and application thereof
  • Preparation method of yeast culture capable of improving yolk color, yeast culture and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] As an embodiment of the present invention, the preparation method of yeast culture comprises the following steps:

[0033] 1) Preparation of liquid strains in Erlenmeyer flask

[0034] The activated Rhodotorula strains were inoculated into the seed liquid culture medium, and the culture medium in a 500ml Erlenmeyer flask was filled with 100ml, and cultured in a shaker flask at 30°C and 180rpm for 24 hours to obtain liquid strains in the Erlenmeyer flask. Wherein, the seed culture medium is YPD liquid medium, and the composition of YPD liquid medium is: glucose 40g, peptone 10g, yeast powder 10g, 1000ml water, natural pH. The medium was sterilized at 121° C. for 20 minutes at high temperature.

[0035] 2) Preparation of seed tank liquid strain

[0036] The marine rhodotorula triangular flask liquid strain obtained in step 1) was inoculated into the YPD liquid culture medium with 5% inoculum to multiply, and fermented for 24 hours at 28° C. to obtain the liquid strain o...

Embodiment 2

[0044] As an embodiment of the present invention, the preparation method of yeast culture comprises the following steps:

[0045] 1) Preparation of liquid strains in Erlenmeyer flask

[0046] The activated Rhodotorula strains were inoculated into the seed liquid culture medium, and the culture medium in a 500ml Erlenmeyer flask was filled with 100ml, and cultured in a shaker flask at 30°C and 180rpm for 24 hours to obtain liquid strains in the Erlenmeyer flask. Wherein, the seed culture medium is YPD liquid medium, and the composition of YPD liquid medium is: glucose 40g, peptone 10g, yeast powder 10g, 1000ml water, natural pH. The medium was sterilized at 121° C. for 20 minutes at high temperature.

[0047] 2) Preparation of seed tank liquid strain

[0048] The marine rhodotorula triangular flask liquid strain obtained in step 1) was inoculated into the YPD liquid culture medium with 5% inoculum to multiply, and fermented for 24 hours at 28° C. to obtain the liquid strain o...

Embodiment 3

[0056] As an embodiment of the present invention, the preparation method of yeast culture comprises the following steps:

[0057] 1) Preparation of liquid strains in Erlenmeyer flask

[0058] The activated Rhodotorula strains were inoculated into the seed liquid culture medium, and the culture medium in a 500ml Erlenmeyer flask was filled with 100ml, and cultured in a shaker flask at 30°C and 180rpm for 24 hours to obtain liquid strains in the Erlenmeyer flask. Wherein, the seed culture medium is YPD liquid medium, and the composition of YPD liquid medium is: glucose 40g, peptone 10g, yeast powder 10g, 1000ml water, natural pH. The medium was sterilized at 121° C. for 20 minutes at high temperature.

[0059] 2) Preparation of seed tank liquid strain

[0060] The marine rhodotorula triangular flask liquid strain obtained in step 1) was inoculated into the YPD liquid culture medium with 5% inoculum to multiply, and fermented for 24 hours at 28° C. to obtain the liquid strain o...

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PUM

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Abstract

The invention discloses a yeast culture for improving the yolk color and application thereof. The yeast culture is prepared by fermenting grain amaranth, purslane, sweet potato peel, pitaya peel and the like through rhodotorula benthica,the yeast culture is free of toxic residues, the yolk color grade can be effectively improved when the yeast culture is used for laying hen breeding, and the costis low; meanwhile, abundant yeast metabolitessuch as yeast nucleic acid and yeast immune polysaccharide are provided, the immunity of bred animals can be improved, and animal health is promoted.

Description

technical field [0001] The invention belongs to the technical field of microbial fermentation, relates to a yeast culture and its application, in particular to a preparation method of a yeast culture capable of improving the color of egg yolk in raising laying poultry, the yeast culture and its application. Background technique [0002] Eggs are rich in nutrients, especially egg yolks are rich in lecithin, lecithin, calcium, phosphorus, iron, vitamin A, vitamin D and vitamin B. These nutrients are of great benefit to the human body. When people buy eggs, they are more willing to buy eggs with darker yolks, thinking that the darker the yolk, the higher the nutritional value. The fact is the same, the color of the egg yolk is deposited in the egg yolk by carotenoids such as lutein, zeaxanthin, riboflavin (vitamin B2) in the egg formation process, these carotenoids are extremely high in human eyes. High, it is the main pigment that constitutes the macular area of ​​the human e...

Claims

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Application Information

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IPC IPC(8): A23K50/75A23K10/12
Inventor 罗国升刘亚力罗明董美娜张煌潘长咏
Owner 湖南普菲克生物科技有限公司
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