Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide a kind of cordycepin and Se content is high, the Chinese caterpillar fungus cultivating method of resistance.
The object of the present invention is achieved like this: a kind of high cordycepin selenium-rich cordyceps cultivating method, comprises the steps:
1) Cordyceps Militaris one-level solid culture:
1. inclined-plane solid culture medium is prepared: medium component proportioning is: potato 100-140g, glucose 10-14g, beef extract 4-6g, KH
2pO
40.4-0.6g, MgSO
40.2-0.3g, selenium methionine 0.008-0.012g, agar 8-12g; First boiled by potato, mash, add all the other compositions aforementioned, heating is boiled and is allowed agar melt completely, and adding distil water is to 500ml, and stir dress inclined-plane processed, and sterilizing is chilled to room temperature and prepares inoculation;
2. inoculate, cultivate: the mycelium aseptically inoculating Chinese caterpillar fungus with inclined-plane solid culture medium prepared by step 1, lucifuge 24 DEG C cultivates 3-4 days, then cultivates 4-5 days at 20 DEG C, then 18 ~ 22 DEG C of natural lightings 24 hours, stand-by;
2) Cordyceps Militaris secondary expanding species liquid culture:
1. secondary liquid medium is prepared: with distilled water obtaining liq medium, each constituent content is: peptone 13-17g/L, glucose 18-22g/L, KH
2pO
40.8-1.2g/L, 7H
2oMgSO
40.4-0.6g/L, VB
18-12mg/L, selenium methionine 0.04-0.06g/L, sterilizing is stand-by;
2. inoculate, cultivate: aseptically inoculate with liquid nutrient medium prepared by step 1 mycelium that aforementioned one-level solid culture obtains, lucifuge 20 ~ 24 DEG C, shaking table is cultivated, and completes secondary expanding species liquid culture when there is small rice grain sample mycelium pellet;
3) Chinese caterpillar fungus solids manufacture is cultivated:
1. solids manufacture medium is prepared: medium component proportioning is: rice 800-1200g, distilled water 1100-1300g, peptone 10-14g, glucose 16-20g, KH
2pO
41.5-2.5g, 7H
2oMgSO
40.8-1.2g, selenium methionine 0.4-0.6g, VB
11.5-2.5mg; First each composition distilled water except rice is dissolved preparation and become nutrient solution, then rice and nutrient solution are loaded in proportion in blake bottle, sealing, steams to rice ripe, is cooled to room temperature stand-by;
2. inoculate, cultivate: aseptically inoculate with solid culture medium prepared by step 1 culture fluid that said second expanding species liquid culture obtains; Put into and cultivate the lucifuge cultivation of 18 ~ 23 DEG C, darkroom; Put into natural daylight or artificial lighting when media surface grows white hypha, 18 ~ 23 DEG C of ambient growth, when stroma is long neat, tip is expanded, sporulation time can gather.
In described step 2 Cordyceps Militaris secondary expanding species liquid culture, after inoculation, shaking table is cultivated is that 130 ~ 150 turns/min shaking table cultivates 48 hours.
In Cordyceps Militaris secondary expanding species liquid culture step in described step 2, the mycelium 3-3.5g that every 200ml liquid nutrient medium inoculation one-level solid culture obtains.
In described step 3, Chinese caterpillar fungus solids manufacture is cultivated, and rice and nutrient solution are by weight in the ratio loading blake bottle of 1:1.2, and sealing, 95-100 DEG C is steamed 30-40 minute, be cooled to room temperature stand-by.
In described step 3, Chinese caterpillar fungus solids manufacture is cultivated, the culture fluid obtained by solid culture medium inoculation secondary expanding species liquid culture, and inoculum concentration is every 100g rice inoculation 0.5ml culture fluid.
In described step 3, Chinese caterpillar fungus solids manufacture is cultivated, and puts into and cultivate 18 ~ 23 DEG C, darkroom lucifuge cultivation 8-10 days after inoculation.
The invention has the beneficial effects as follows: provide a kind of low cost, high production, the cultivating method of the Chinese caterpillar fungus of high, the rich selenium of cordycepin content can be turned out.The present invention is applicable to the artificial cultivation of Cordyceps sinensis and Cordceps militaris, and the Chinese caterpillar fungus obtained is high containing cordycepin, can reach more than 100-200 times of wild Chinese caterpillar fungus; Se content is high, can reach the level of wild Chinese caterpillar fungus, and drastically increase active ingredient and effect of cultivation Chinese caterpillar fungus, and cultivate the anti-miscellaneous bacteria power of Cordyceps Militaris by force by this method, output is high, can shorten the cultivation time, has good economic benefit.
Embodiment
The cultivating method of the rich selenium Cordyceps sinensis of embodiment 1 high cordycepin
Cultivate the method for the rich selenium Cordyceps sinensis of high cordycepin, operate in accordance with the following steps:
1) Cordyceps Militaris one-level solid culture:
1. inclined-plane solid culture medium is prepared: medium component proportioning is: potato 120g, glucose 12g, beef extract 5g, KH
2pO
40.5g, MgSO
40.25g, selenium methionine 0.01g, agar 10g; Potato first boils, and mashes, and adds all the other compositions aforementioned, and heating is boiled and allowed agar melt completely, and adding distil water, to 500ml, stirs, and gets the test tube of 40ml, and often pipe loads medium 7ml, bevel, high pressure steam sterilization, is cooled to room temperature and prepares inoculation;
2. inoculate, cultivate: the mycelium 3mm aseptically inoculating Cordyceps sinensis with inclined-plane solid culture medium prepared by step 1
2, lucifuge 24 DEG C is cultivated 3 days, then cultivates 4 days at 20 DEG C, then 18 ~ 22 DEG C of natural lightings 24 hours, completes activation.
2) Cordyceps Militaris secondary expanding species liquid culture:
1. secondary liquid medium is prepared: with distilled water obtaining liq medium, each constituent content is: peptone 15g/L, glucose 20g/L, KH
2pO
41g/L, 7H
2oMgSO
40.5g/L, VB
110mg/L, selenium methionine 0.05g/L, recording pH value is 7.0, and sterilizing is stand-by;
2. inoculate, cultivate: aseptically inoculate with liquid nutrient medium prepared by step 1 mycelium that aforementioned one-level solid culture obtains, every 200ml liquid nutrient medium inoculation mycelium 3g, lucifuge 20 ~ 24 DEG C, 130 ~ 150 turns/min shaking table cultivates 48 hours, completes secondary expanding species liquid culture when there is small rice grain sample mycelium pellet;
3) Chinese caterpillar fungus solids manufacture is cultivated:
1. solids manufacture medium is prepared: medium component proportioning is: rice 1000g, distilled water 1200g, peptone 12g, glucose 18g, KH
2pO
42g, 7H
2oMgSO
41g, selenium methionine 0.5g, VB
12mg, recording pH value is 6.5; First each composition distilled water except rice is dissolved and become nutrient solution, again rice and nutrient solution are loaded blake bottle by weight the ratio of 1:1.2, load 50 grams of rice, 60 grams of nutrient solutions in the blake bottle of each 500ml, sealing, 95-100 DEG C is steamed 30 minutes, is cooled to room temperature stand-by;
2. inoculate, cultivate: aseptically inoculate with solid culture medium prepared by step 1 culture fluid that said second expanding species liquid culture obtains, every 100g rice inoculation 0.5ml culture fluid; Put into and cultivate 18 ~ 23 DEG C, darkroom lucifuge cultivation 8-10 days; Put into natural daylight or artificial lighting when media surface grows white hypha, 18 ~ 23 DEG C of ambient growth 40-55 days, when stroma is long neat, tip is expanded, sporulation time can gather.
Utilizing the method in Chinese Pharmacopoeia to record in the Cordyceps sinensis nurtured cordycepin content in every 100g is 217.63mg; Recording Se content is 0.327mg/kg, reaches the Se content level of wild Chinese caterpillar fungus.
The cultivating method of the rich selenium Cordceps militaris of embodiment 2 high cordycepin
Cultivate the method for the rich selenium Cordceps militaris of high cordycepin, operate in accordance with the following steps:
1) Cordyceps Militaris one-level solid culture:
1. inclined-plane solid culture medium is prepared: medium component proportioning is: potato 110g, glucose 11g, beef extract 4.5g, KH
2pO
40.4g, MgSO
40.2g, selenium methionine 0.009g, agar 9g; Potato first boils, and mashes, and adds all the other compositions aforementioned, and heating is boiled and allowed agar melt completely, and adding distil water, to 500ml, stirs, and gets the test tube of 40ml, and often pipe loads medium 8ml, bevel, high pressure steam sterilization, is cooled to room temperature and prepares inoculation;
2. inoculate, cultivate: the mycelium 3mm aseptically inoculating Cordceps militaris with inclined-plane solid culture medium prepared by step 1
2, lucifuge 24 DEG C is cultivated 3 days, then cultivates 4 days at 20 DEG C, then 18 ~ 22 DEG C of natural lightings 24 hours, completes activation.
2) Cordyceps Militaris secondary expanding species liquid culture:
1. secondary liquid medium is prepared: with distilled water obtaining liq medium, each constituent content is: peptone 14g/L, glucose 18g/L, KH
2pO
40.9g/L, 7H
2oMgSO
40.4g/L, VB
19mg/L, selenium methionine 0.04g/L, recording pH value is 7.1, and sterilizing is stand-by;
2. inoculate, cultivate: aseptically inoculate with liquid nutrient medium prepared by step 1 mycelium that aforementioned one-level solid culture obtains, every 200ml liquid nutrient medium inoculation mycelium 3.5g, lucifuge 20 ~ 24 DEG C, 130 ~ 150 turns/min shaking table cultivates 48 hours, completes secondary expanding species liquid culture when there is small rice grain sample mycelium pellet;
3) Chinese caterpillar fungus solids manufacture is cultivated:
1. solids manufacture medium is prepared: medium component proportioning is: rice 1100g, distilled water 1300g, peptone 13g, glucose 19g, KH
2pO
42.5g, 7H
2oMgSO
41.2g, selenium methionine 0.6g, VB
12.5mg, recording pH value is 6.8; First dissolved by each composition distilled water except rice, then load in blake bottle by rice and nutrient solution by weight the ratio of 1:1.2, sealing, 95-100 DEG C is steamed 35 minutes, is cooled to room temperature stand-by;
2. inoculate, cultivate: aseptically inoculate with solid culture medium prepared by step 1 culture fluid that said second expanding species liquid culture obtains, every 100g rice inoculation 0.5ml culture fluid; Put into and cultivate 18 ~ 23 DEG C, darkroom lucifuge cultivation 8-10 days; Put into natural daylight or artificial lighting when media surface grows white hypha, 18 ~ 23 DEG C of ambient growth 40-55 days, when stroma is long neat, tip is expanded, sporulation time can gather.
Utilizing the method in Chinese Pharmacopoeia to record in the Cordceps militaris nurtured cordycepin content in every 100g is 210.5mg; Recording Se content is 0.31mg/kg, reaches the Se content level of wild Chinese caterpillar fungus.