Summary of the invention:
The objective of the invention is to overcome the deficiency of above-mentioned prior art and a kind of simple to operate, cordycepin content is high a kind of mycelial artificial culture method of Cordyceps militaris that improves cordycepin content of coercing by manganese ion is provided.
Purpose of the present invention can reach by following measure: a kind of mycelial artificial culture method of Cordyceps militaris that improves cordycepin content, it may further comprise the steps: the test tube slant spawn culture, the test tube strain cultivation, the triangular flask liquid seeds is cultivated, seed tank culture, fermentation tank culture, it is characterized in that in the described fermentation tank culture step when seed tank culture during to mycelium recovery rate 0.4-0.8%, change fermentation tank culture over to, contain 1%-9% manganese sulphate in its medium by weight percentage, 23 ℃ ~ 26 ℃ of temperature, ventilated 1: 0.5, speed of agitator 120 rpm ~ 150 rpm, be cultured to mycelium recovery rate 1.2-1.8%, medium content of reducing sugar 0.2% o'clock is at the most put jar results.
In order further to carry out purpose of the present invention, described fermentation tank culture medium is made up of glucose, peptone, yeast extract, manganese sulphate, water.
In order further to carry out purpose of the present invention, described fermentation tank culture medium is made up of sucrose, corn steep liquor, manganese sulphate, water.
In order further to carry out purpose of the present invention, described fermentation tank culture medium is made up of corn flour, soybean cake powder, manganese sulphate, water.
In order further to carry out purpose of the present invention, described fermentation tank culture medium is made up of sucrose, fish meal, manganese sulphate, water.
The present invention can produce following good effect compared with the prior art: the applicant is based on to the research of cordyceps filament to the manganese ion enrichment mechanism, recognize that the cordyceps filament has extremely strong accumulation ability to manganese ion, and find to coerce down at the high concentration manganese ion, can improve the output of mycelium cordycepin, and best manganese ion concentration scope is arranged.Adopt cultural method of the present invention, not only simple, and cordycepin output height, cordycepin content exceeds more than 0.8 times in the mycelium that the high concentration manganese ion coerces than not adding.
Embodiment: following the specific embodiment of the present invention is elaborated:
Embodiment 1:
Bacterial classification: Cordyceps militaris spawn Cordyceps militaris 5.270 derives from microorganism fungus kind preservation center, Guangdong Province.
Test tube slant spawn culture (activation) (also can cultivate) according to other conventional methods:
The preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, agar powder 15-20g, water 890-971g, its pH value is 5.0-7.0, is sub-packed in the test tube; Cordyceps militaris spawn is inserted the test tube slant under aseptic condition, 15 ~ 30 ℃ of dark cultivations 5-10 days;
Test tube strain cultivation (also can cultivate) according to other conventional methods:
The preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, water 910-986g, its pH value is 5.0-7.0, is sub-packed in the test tube sterilization; Insert activation back bevel bacterial classification, 15 ~ 30 ℃, speed of agitator 120rpm cultivated 5 days ~ 10 days;
Carry out the triangular flask liquid seeds and cultivate (also can cultivate) according to other conventional methods:
Preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, water 910-986 g, its pH value is 5.0-7.0, and the prepared culture medium branch is packed in the 500ml conical flask, every bottled 200ml, seal the back and sterilized 18 ~ 30 minutes under 120 ~ 130 ℃ of conditions, take out medium, 5.0-7.0 is cooled to 20 ~ 30 ℃; Every bottle graft is gone into the cultured test tube liquid spawn of 10ml-20ml under aseptic condition, and 15 ~ 30 ℃, speed of agitator 120rpm cultivated 5 days ~ 10 days;
Seed tank culture (also can cultivate) according to other conventional methods:
Preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, water 910-986g, its pH value is 5.0-7.0, sterilization inserts cultured triangular flask liquid spawn in batches, and volume 60%-80% feeds intake, 15 ~ 30 ℃ of temperature, ventilated 1: 0.5, and in the 100L seeding tank, cultivated 2-5 days for 15 ~ 30 ℃, and be extended in 10 tons of jars stir culture step by step 2-5 days;
Fermentation tank culture:
When seed tank culture during to mycelium recovery rate 0.4-0.8%, change 50 tons of fermentation tank culture over to, feed intake 40 tons, feed intake (medium) be: glucose 800-2000 kg, peptone 160-400 kg, yeast extract 160-400 kg, manganese sulphate 400 kg-3600kg, water surplus, its pH value is 5.0-7.0,23 ℃ ~ 26 ℃ of temperature, ventilated 1: 0.5, speed of agitator 120 rpm ~ 150 rpm are cultured to mycelium recovery rate 1.2-1.8%, medium content of reducing sugar 0.2% o'clock is at the most put jar results.Cordycepin content reaches 2.31mg/g in the mycelium, and cordycepin content reaches 0.69mg/g in the mycelium and do not add under the condition of manganese sulphate, increases by 2.3 times after adding manganese sulphate.
Embodiment 2:
Bacterial classification: Cordyceps militaris spawn Cordyceps militaris 5.701 derives from Chinese common micro-organisms culture presevation administrative center.
Test tube slant spawn culture (activation) (also can cultivate) according to other conventional methods:
The preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, agar powder 15-20g, water 890-971g, its pH value is 5.0-7.0, is sub-packed in the test tube; Cordyceps militaris spawn is inserted the test tube slant under aseptic condition, 15 ~ 30 ℃ of dark cultivations 5-10 days;
Test tube strain cultivation (also can cultivate) according to other conventional methods:
The preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, water 910-986g, its pH value is 5.0-7.0, is sub-packed in the test tube sterilization; Insert activation back bevel bacterial classification, 15 ~ 30 ℃, speed of agitator 120rpm cultivated 5 days ~ 10 days;
The triangular flask liquid seeds is cultivated (also can cultivate according to other conventional methods):
Preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, water 910-986 g, its pH value is 5.0-7.0, and the prepared culture medium branch is packed in the 500ml conical flask, every bottled 200ml, seal the back and sterilized 18 ~ 30 minutes under 120 ~ 130 ℃ of conditions, take out medium, 5.0-7.0 is cooled to 20 ~ 30 ℃; Every bottle graft is gone into the cultured test tube liquid spawn of 10ml-20ml under aseptic condition, and 15 ~ 30 ℃, speed of agitator 120rpm cultivated 5 days ~ 10 days;
Seed tank culture (also can cultivate) according to other conventional methods:
Preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, water 910-986g, its pH value is 5.0-7.0, sterilization inserts cultured triangular flask liquid spawn in batches, and volume 60%-80% feeds intake, 15 ~ 30 ℃ of temperature, ventilated 1: 0.5, and in the 100L seeding tank, cultivated 2-5 days for 15 ~ 30 ℃, and be extended in 10 tons of jars stir culture step by step 2-5 days;
Fermentation tank culture:
When seed tank culture during, change 50 tons of fermentation tank culture over to mycelium recovery rate 0.4-0.8%.Feed intake 40 tons, feed intake (medium) be: sucrose 800-2000 kg, fish meal 200-400 kg, manganese sulphate 400 kg-3600kg, water surplus, its pH value is 5.0-7.0, and 23 ℃ ~ 26 ℃ of temperature were ventilated 1: 0.5, speed of agitator 120 rpm ~ 150 rpm, be cultured to mycelium recovery rate 1.2-1.8%, medium content of reducing sugar 0.2% o'clock is at the most put jar results.Cordycepin content reaches 1.17mg/g in the mycelium, and cordycepin content reaches 0.65mg/g in the mycelium and do not add under the condition of manganese sulphate, has increased by 0.8 times after adding manganese sulphate.
Embodiment 3:
Bacterial classification: Cordyceps militaris spawn Cordyceps militaris 5.270 derives from microorganism fungus kind preservation center, Guangdong Province.
Test tube slant spawn culture (activation) (also can cultivate) according to other conventional methods:
The preparation medium: glucose 20g, peptone 6g, yeast extract 5g, magnesium sulfate 1g, potassium dihydrogen phosphate 1g, agar powder 15g, water 952g, its pH value is 5.0-7.0, is sub-packed in the test tube; Cordyceps militaris spawn is inserted the test tube slant under aseptic condition, 15 ~ 30 ℃ of dark cultivations 5-10 days;
Test tube strain cultivation (also can cultivate) according to other conventional methods:
The preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, water 910-986g, its pH value is 5.0-7.0, is sub-packed in the test tube sterilization; Insert activation back bevel bacterial classification, 15 ~ 30 ℃, speed of agitator 120rpm cultivated 5 days ~ 10 days;
The triangular flask liquid seeds is cultivated (also can cultivate according to other conventional methods):
Preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, water 910-986g, its pH value is 5.0-7.0, and the prepared culture medium branch is packed in the 500ml conical flask, every bottled 200ml, seal the back and sterilized 18 ~ 30 minutes under 120 ~ 130 ℃ of conditions, take out medium, 5.0-7.0 is cooled to 20 ~ 30 ℃; Every bottle graft is gone into the cultured test tube liquid spawn of 10ml-20ml under aseptic condition, and 15 ~ 30 ℃, speed of agitator 120rpm cultivated 5 days ~ 10 days;
Seed tank culture (also can cultivate) according to other conventional methods:
Preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, water 910-986g, its pH value is 5.0-7.0, sterilization inserts cultured triangular flask liquid spawn in batches, and volume 60%-80% feeds intake, 15 ~ 30 ℃ of temperature, ventilated 1: 0.5, and in the 100L seeding tank, cultivated 2-5 days for 15 ~ 30 ℃, and be extended in 10 tons of jars stir culture step by step 2-5 days;
Fermentation tank culture:
When seed tank culture during, change 50 tons of fermentation tank culture over to mycelium recovery rate 0.4-0.8%.Feed intake 40 tons, feed intake (medium) is: sucrose 800-2000 kg, corn steep liquor 200-1000 kg, manganese sulphate 400 kg-3600kg, water surplus, its pH value is 5.0-7.0,23 ℃ ~ 26 ℃ of temperature, ventilated 1: 0.5, speed of agitator 120 rpm ~ 150 rpm,, be cultured to mycelium recovery rate 1.2-1.8%, medium content of reducing sugar 0.2% o'clock is at the most put jar results.Cordycepin content reaches 1.92mg/g in the mycelium, and cordycepin content reaches 0.55mg/g in the mycelium and do not add under the condition of manganese sulphate, has increased by 2.50 times after adding manganese sulphate.
Embodiment 4:
Bacterial classification: Cordyceps militaris spawn Cordyceps militaris 5.270 derives from microorganism fungus kind preservation center, Guangdong Province.
Test tube slant spawn culture (activation) (also can cultivate) according to other conventional methods:
The preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, agar powder 15-20g, water 890-971g, its pH value is 5.0-7.0, is sub-packed in the test tube; Cordyceps militaris spawn is inserted the test tube slant under aseptic condition, 15 ~ 30 ℃ of dark cultivations 5-10 days;
Test tube strain cultivation (also can cultivate) according to other conventional methods:
The preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, water 910-986g, its pH value is 5.0-7.0, is sub-packed in the test tube sterilization; Insert activation back bevel bacterial classification, 15 ~ 30 ℃, speed of agitator 120rpm cultivated 5 days ~ 10 days;
The triangular flask liquid seeds is cultivated (also can cultivate according to other conventional methods):
Preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, water 910-986 g, its pH value is 5.0-7.0, and the prepared culture medium branch is packed in the 500ml conical flask, every bottled 200ml, seal the back and sterilized 18 ~ 30 minutes under 120 ~ 130 ℃ of conditions, take out medium, 5.0-7.0 is cooled to 20 ~ 30 ℃; Every bottle graft is gone into the cultured test tube liquid spawn of 10ml-20ml under aseptic condition, and 15 ~ 30 ℃, speed of agitator 120rpm cultivated 5 days ~ 10 days;
Seed tank culture (also can cultivate) according to other conventional methods:
Preparation medium: glucose 10-60g, peptone 1-10g, yeast extract 1-10g, magnesium sulfate 1-5g, potassium dihydrogen phosphate 1-5g, water 910-986g, its pH value is 5.0-7.0, sterilization inserts cultured triangular flask liquid spawn in batches, and volume 60%-80% feeds intake, 15 ~ 30 ℃ of temperature, ventilated 1: 0.5, and in the 100L seeding tank, cultivated 2-5 days for 15 ~ 30 ℃, and be extended in 10 tons of jars stir culture step by step 2-5 days;
Fermentation tank culture:
When seed tank culture during to mycelium recovery rate 0.4-0.8%, change 50 tons of fermentation tank culture over to, feed intake 40 tons, feed intake (medium) be: corn flour 800-2000 kg, soybean cake powder 200-400 kg, manganese sulphate 400 kg-3600kg, water surplus, its pH value is 5.0-7.0, and 23 ℃ ~ 26 ℃ of temperature were ventilated 1: 0.5, speed of agitator 120 rpm ~ 150 rpm, be cultured to mycelium recovery rate 1.2-1.8%, medium content of reducing sugar 0.2% o'clock is at the most put jar results.Cordycepin content reaches 2.32mg/g in the mycelium, and cordycepin content reaches 0.67mg/g in the mycelium and do not add under the condition of manganese sulphate, has increased by 2.46 times after adding manganese sulphate.