CN112136602A - Liquid cultivation culture solution and liquid cultivation production process for velvet antler mushrooms - Google Patents
Liquid cultivation culture solution and liquid cultivation production process for velvet antler mushrooms Download PDFInfo
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- CN112136602A CN112136602A CN202010989627.XA CN202010989627A CN112136602A CN 112136602 A CN112136602 A CN 112136602A CN 202010989627 A CN202010989627 A CN 202010989627A CN 112136602 A CN112136602 A CN 112136602A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G18/00—Cultivation of mushrooms
- A01G18/20—Culture media, e.g. compost
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G18/00—Cultivation of mushrooms
- A01G18/40—Cultivation of spawn
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Abstract
The invention relates to a mushroom culture solution, in particular to a velvet antler mushroom liquid culture solution which is prepared from the following raw materials in parts by weight: 11-13 parts of white sugar; 5.5-6.5 parts of yeast; 3.5-4.5 parts of soybean meal; 0.5-0.7 parts of corn flour; 0.4-0.6 part of anhydrous magnesium sulfate; 0.3-0.5 part of monopotassium phosphate; 0.1-0.3 part of defoaming agent; 990-1100 parts of water. The liquid culture solution for the velvet antler mushroom provided by the invention has the advantages of short culture period, high strain purity and stable strain activity.
Description
Technical Field
The invention relates to a mushroom culture solution, in particular to a velvet antler mushroom liquid culture solution and a velvet antler mushroom liquid culture production process.
Background
The cultivation of the cultivar of the velvet antler mushroom mostly adopts a solid culture medium for cultivation, the solid culture medium has long culture period, the purity of the cultivar is low, and the vitality of the cultivar is unstable.
Disclosure of Invention
In order to solve the problems, the invention provides a liquid culture solution for the velvet antler mushroom, which has the advantages of short culture period, high strain purity and stable strain activity, and the specific technical scheme is as follows:
the liquid cultivation culture solution for the velvet antler mushrooms is prepared from the following raw materials in parts by weight: 11-13 parts of white sugar; 5.5-6.5 parts of yeast; 3.5-4.5 parts of soybean meal; 0.5-0.7 parts of corn flour; 0.4-0.6 part of anhydrous magnesium sulfate; 0.3-0.5 part of monopotassium phosphate; 0.1-0.3 part of defoaming agent; 990-1100 parts of water.
Further, the pH value of the liquid culture solution for the velvet antler mushroom is 6.5 +/-0.2.
The liquid cultivation production process of the velvet antler mushroom comprises the following steps:
s101, preparing raw materials;
s102, dissolving the raw materials with hot water to obtain a liquid cultivation culture solution of the velvet antler mushroom;
s103, adding the culture solution into a culture tank, and sealing the culture tank;
s104, introducing steam for sterilization;
s105, after sterilization, closing an exhaust valve, closing an inoculation port, and cooling the temperature of the culture solution in the tank to 22-24 ℃;
s106, uniformly stirring the prepared liquid stock hyphae, and preparing a bacteria test tube culture medium and a mould test tube culture medium for detection;
s107, inoculating, namely opening an inoculating valve of the culture tank, then inoculating the prepared liquid stock hypha into the culture tank, simultaneously taking part of the liquid stock hypha to be respectively inoculated into a bacteria test tube and a mould test tube, and then taking part of the liquid stock hypha to perform strain quality detection;
s108, closing the inoculation valve;
s109, culturing, wherein whether pollution exists is observed when a culture tank is cultured for 1-3 days, whether fine granular hyphae exist in the tank is observed for 2-3 days, and whether the content of the visible hyphae in the tank reaches above 0.8 is observed after 4 days; sampling and detecting after 5 days; and simultaneously culturing the bacteria test tube and the mould test tube, and determining whether the strain fermentation tank is polluted by bacteria and mould in the bacteria test tube and the mould test tube after 5 days.
Further, the temperature of the hot water in the step S102 is 75-85 ℃.
Further, in the step S104, when the temperature rises to 95-105 ℃, the exhaust valve is opened, the inoculation port is opened by no more than half, the temperature rises to 120-124 ℃, the holding time is not less than ten minutes, and then the filter element is opened for sterilization not less than 40 minutes.
Further, in step S105 and step S108, the valve port is closed by a 75% alcohol tampon after the inoculation valve is closed.
Further, in step S106, the prepared liquid stock hyphae are broken and stirred by magnetic stirring.
Further, the inoculation port of the culture tank is sterilized before inoculation in the step S107, a circle of 95% alcohol cotton is arranged around the inoculation port during sterilization, then ignition sterilization is carried out, and meanwhile flame sterilization is carried out on the bottle mouth of the glass container on which the hyphae are placed.
Further, in the step S109, the bacteria test tube and the mould test tube are both placed in a constant temperature box for culturing, and the temperature is 36-38 ℃.
Further, the step S109 further comprises hypha detection, wherein the hypha detection is carried out after five days, part of the bacterial liquid is taken out of the culture tank, and hypha is separated by using a centrifugal machine, wherein the weight of the hypha is 0.9-1.1% of the total weight of the bacterial liquid, the pH value is 5.8-6, and the sugar content is 2-2.2%.
Compared with the prior art, the invention has the following beneficial effects:
the liquid culture solution for the velvet antler mushroom provided by the invention has the advantages of short culture period, high strain purity and stable strain activity.
Detailed Description
The present invention will now be further described with reference to examples.
The liquid cultivation culture solution for the velvet antler mushrooms is prepared from the following raw materials in parts by weight: 11-13 parts of white sugar; 5.5-6.5 parts of yeast; 3.5-4.5 parts of soybean meal; 0.5-0.7 parts of corn flour; 0.4-0.6 part of anhydrous magnesium sulfate; 0.3-0.5 part of monopotassium phosphate; 0.1-0.3 part of defoaming agent; 990-1100 parts of water.
The pH value of the liquid culture solution of the velvet antler mushroom is 6.5 +/-0.2. The growth environment of the velvet antler mushroom is optimal within the pH value range.
Wherein, when the parts of the solid raw materials are kilogram, the parts of the defoaming agent and the water are L.
Wherein the yeast extract is yeast extract LM800, and the nutrient components are energy 11%, protein 68%, fat 0, carbohydrate 4% and sodium 7%.
The outer surface of the strain of the culture solution is not easy to grow old fungus skin, the foreign fungus in the bag is easy to observe, the purity of the strain is high, the strain growing speed is high, the strain is not easy to infect the foreign fungus, the strain growing time is short, the activity of the strain is strong, the production period is short, the production cost is low, the production germination is fast, and the production unit yield is high.
White sugar provides a carbon source, yeast and soybean meal provide a nitrogen source, corn flour provides a carbon source and vitamins, and anhydrous magnesium sulfate is used for regulating hypha metabolism and preventing aging. Potassium dihydrogen phosphate is used for adjusting the pH value, and the defoaming agent is used for eliminating foam.
Example one
The liquid cultivation culture solution for the velvet antler mushrooms is prepared from the following raw materials in parts by weight: 11 kg of white sugar; 5.5 kg of yeast; 3.5 kg of soybean meal; 0.5 kg of corn flour; 0.4 kg of anhydrous magnesium sulfate; potassium dihydrogen phosphate 0.3 kg; 0.1 liter of defoaming agent; 990 liters of water.
Example two
The liquid cultivation culture solution for the velvet antler mushrooms is prepared from the following raw materials in parts by weight: 12 kg of white sugar; 6 kg of yeast; 4 kg of soybean meal; 0.6 kg of corn flour; 0.5 kg of anhydrous magnesium sulfate; potassium dihydrogen phosphate 0.4 kg; 0.2L of defoaming agent; 1000 liters of water.
EXAMPLE III
The liquid cultivation culture solution for the velvet antler mushrooms is prepared from the following raw materials in parts by weight: 13 kg of white sugar; 6.5 kg of yeast; 4.5 kg of soybean meal; 0.7 kg of corn flour; 0.6 kg of anhydrous magnesium sulfate; potassium dihydrogen phosphate 0.5 kg; 0.3 liter of defoaming agent; 1100 liters of water.
The liquid cultivation production process of the velvet antler mushroom comprises the following steps:
s101, preparing raw materials;
s102, dissolving the raw materials with hot water to obtain a liquid cultivation culture solution of the velvet antler mushroom;
s103, adding the culture solution into a culture tank, and sealing the culture tank;
s104, introducing steam for sterilization;
s105, after sterilization, closing an exhaust valve, closing an inoculation port, and cooling the temperature of the culture solution in the tank to 22-24 ℃;
s106, uniformly stirring the prepared hyphae, and preparing a bacteria test tube culture medium and a mould test tube culture medium for detection;
s107, inoculating, namely opening an inoculating valve of the culture tank, then inoculating the prepared liquid stock hypha into the culture tank, simultaneously taking part of the liquid stock hypha to be respectively inoculated into a bacteria test tube and a mould test tube, and then taking part of the liquid stock hypha to perform strain quality detection;
s108, closing the inoculation valve;
s109, culturing, wherein whether pollution exists is observed when a culture tank is cultured for 1-3 days, whether fine granular hyphae exist in the tank is observed for 2-3 days, and whether the content of the visible hyphae in the tank reaches above 0.8 is observed after 4 days; sampling and detecting after 5 days; and simultaneously culturing the bacteria test tube and the mould test tube, and determining whether the strain fermentation tank is polluted by bacteria and mould in the bacteria test tube and the mould test tube after 5 days.
The bacteria test tube and the mould test tube are only connected with the liquid stock hypha for culture and are used for a contrast test, if bacteria or mould are detected, the fermentation is useless, the fermentation needs to be carried out again, the waste of time and materials caused by the completion of the whole culture process is avoided, and the loss is reduced. The bacteria test tube and the mould test tube are respectively filled with culture media for culturing bacteria and mould.
The strain in step S106 is cultured in a triangular flask.
The temperature of the hot water in the step S102 is 75-85 ℃. The raw materials can be quickly dissolved at the temperature of 75-85 ℃.
And in the step S104, when the temperature rises to 95-105 ℃, the exhaust valve is opened, the inoculation port is opened by no more than half, the temperature is raised to 120-124 ℃, the holding time is not less than ten minutes, and then the filter element is opened for sterilization by no less than 40 minutes. Ensuring thorough sterilization and less nutrient loss.
Before the inoculation of culture tank, can detect the bacterial in the triangular flask, take out partial fungus liquid, use centrifuge, the rotational speed: 3000R/min, time: for 60 minutes, the content of hypha is 1.55 plus or minus 0.1 percent of the total weight, the pH value is 6.0 plus or minus 0.1, and the sugar content is 2.1 plus or minus 0.1. If the requirements are met, the culture can be continued, otherwise, the strains are replaced. Invalid culture is avoided through early detection, and loss is reduced.
In the steps S105 and S108, after the inoculation valve is closed, the valve port is tightly closed by using a 75% alcohol cotton plug. The inoculation valve was plugged with alcohol cotton to prevent bacterial growth.
In step S106, the prepared hyphae are broken and stirred by magnetic stirring.
And in the step S107, the culture tank is sterilized before inoculation, 95% alcohol cotton is arranged around the inoculation port for a circle during sterilization, then ignition sterilization is carried out, and meanwhile flame sterilization is carried out on the bottle mouth of the glass container on which the hyphae are placed.
In the step S109, the bacteria test tube and the mould test tube are both placed in a constant temperature box for culturing at the temperature of 36-38 ℃.
And step S109, hypha detection is further included, wherein the hypha detection is carried out after five days, part of the bacterial liquid is taken out of the culture tank, and hypha is separated by using a centrifugal machine, wherein the weight of the hypha is 0.9-1.1% of the total weight of the bacterial liquid, the pH value is 5.8-6, and the sugar content is 2-2.2%.
The hypha content, pH value and sugar value are physical methods for measuring the growth activity of the strains. If the strain activity is less than 5 days, the content of hyphae is low, and the pH value is higher. When the strain is contaminated with bacteria, the sugar value becomes low. The pH value and sugar content detection can accurately obtain the strain activity condition.
The liquid cultivation production process of the velvet antler mushroom has the advantages of strong strain activity, short production period, low production cost, fast production germination and high yield per unit production.
Claims (10)
1. The liquid cultivation culture solution for the velvet antler mushrooms is characterized by being prepared from the following raw materials in parts by weight:
11-13 parts of white sugar;
5.5-6.5 parts of yeast;
3.5-4.5 parts of soybean meal;
0.5-0.7 parts of corn flour;
0.4-0.6 part of anhydrous magnesium sulfate;
0.3-0.5 part of monopotassium phosphate;
0.1-0.3 part of defoaming agent;
990-1100 parts of water.
2. The liquid culture medium of P.velvet antler mushroom according to claim 1, wherein,
the pH value of the liquid culture solution for the velvet antler mushrooms is 6.5 +/-0.2.
3. The liquid cultivation production process of the velvet antler mushroom is characterized by comprising the following steps:
s101, preparing raw materials;
s102, dissolving the raw materials with hot water to obtain a liquid cultivation culture solution of the velvet antler mushroom;
s103, adding the culture solution into a culture tank, and sealing the culture tank;
s104, introducing steam for sterilization;
s105, after sterilization, closing an exhaust valve, closing an inoculation port, and cooling the temperature of the culture solution in the tank to 22-24 ℃;
s106, uniformly stirring the prepared liquid stock hyphae, and preparing a bacteria test tube culture medium and a mould test tube culture medium for detection;
s107, inoculating, namely opening an inoculating valve of the culture tank, inoculating the prepared hyphae into the culture tank, inoculating part of liquid stock hyphae into a bacteria test tube and a mould test tube respectively, and then performing strain quality detection on part of liquid stock hyphae;
s108, closing the inoculation valve;
s109, culturing, wherein whether pollution exists is observed when a culture tank is cultured for 1-3 days, whether fine granular hyphae exist in the tank is observed for 2-3 days, and whether the content of the visible hyphae in the tank reaches above 0.8 is observed after 4 days; sampling and detecting after 5 days; and simultaneously culturing the bacteria test tube and the mould test tube, and detecting whether bacteria and mould exist in the bacteria test tube and the mould test tube after 5 days.
4. The liquid cultivation production process of velvet antler mushroom according to claim 3,
the temperature of the hot water in the step S102 is 75-85 ℃.
5. The liquid cultivation production process of velvet antler mushroom according to claim 3,
and in the step S104, when the temperature rises to 95-105 ℃, the exhaust valve is opened, the inoculation port is opened by no more than half, the temperature is raised to 120-124 ℃, the holding time is not less than ten minutes, and then the filter element is opened for sterilization by no less than 40 minutes.
6. The liquid cultivation production process of velvet antler mushroom according to claim 3,
in the steps S105 and S108, after the inoculation valve is closed, the valve port is tightly closed by using a 75% alcohol cotton plug.
7. The liquid cultivation production process of velvet antler mushroom according to claim 3,
in step S106, hyphae of the liquid stock to be used are broken and stirred by magnetic stirring.
8. The liquid cultivation production process of velvet antler mushroom according to claim 3,
and in the step S107, the culture tank is sterilized before inoculation, 95% alcohol cotton is arranged around the inoculation port for a circle during sterilization, then ignition sterilization is carried out, and meanwhile flame sterilization is carried out on the bottle mouth of the glass container on which the hyphae are placed.
9. The liquid cultivation production process of velvet antler mushroom according to claim 3,
in the step S109, the bacteria test tube and the mould test tube are both placed in a constant temperature box for culturing at the temperature of 36-38 ℃.
10. The liquid cultivation production process of velvet antler mushroom according to claim 3,
and step S109, hypha detection is further included, wherein the hypha detection is carried out after five days, part of the bacterial liquid is taken out of the culture tank, and hypha is separated by using a centrifugal machine, wherein the weight of the hypha is 0.9-1.1% of the total weight of the bacterial liquid, the pH value is 5.8-6, and the sugar content is 2-2.2%.
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| CN115413530A (en) * | 2022-10-08 | 2022-12-02 | 福建农林大学 | Liquid strain culture medium for velvet antler mushroom and method for cultivating velvet antler mushroom by using culture medium |
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