Golden fungus fermentation liquor or sesquiterpenes produced by fermentation of golden fungus liquid
A sesquiterpene and fermentation liquid technology, applied in the field of biological fermentation and medicine, can solve the problem of no secondary metabolite sesquiterpenoids
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Embodiment 1
[0055] Embodiment 1: the tissue separation of golden ear fungus species
[0056] Take the fresh unopened fruiting body of Yunnan wild golden ear, cut off the base of the stipe and the outer skin of the stipe, disinfect the surface of the fruiting body with 75% ethanol, move it to a super-clean workbench, and irradiate it with ultraviolet light for 20 minutes. Burn the scalpel on the flame of an alcohol lamp and put it in sterile water to cool down to ensure that the temperature of the scalpel will not damage the fruiting body tissue. Divide the fruiting body into two, cut the epidermal tissue in the stipe (or in the stipe), the junction of the stipe and the cap, the cap and the gills, small pieces the size of soybeans, and do not cut through the surface of the fruiting body when cutting organize. Use sterile tweezers to pick up the slant culture medium (that is, PDA medium) of the test tube, pick up 10 of each tissue, culture in the dark at 25-28°C, and regularly observe the ...
Embodiment 2
[0057] The preparation of embodiment 2 golden ear fermented liquid
[0058] 1. In the newly prepared potato culture medium (Zhuge Jian, Wang Zhengxiang, Industrial Microbiology Experimental Technical Handbook, 1994: P367), insert the golden ear fungus classification that embodiment 1 obtains, culture temperature 27 ℃, treat that mycelium is overgrown After the slant, the slant strains were inserted into 250 mL Erlenmeyer flasks containing 60 mL of shaking flask culture medium (5 bottles in total), and cultured on a shaker at 27° C. and 150 rpm for 24 hours. Wherein the formula of shake flask culture medium is (unit is gram / liter): glucose 5, corn flour 15, soybean meal powder 5, KH 2PO 4 3. MgSO 4 1. The initial pH value is 6.3.
[0059] 2. Insert the above shake flask strains into 500mL Erlenmeyer flasks equipped with 150mL expansion medium (24 flasks in total), the inoculation amount is to insert 11mL shake flask seeds into each 500mL Erlenmeyer flask, and shake at 27°C a...
Embodiment 3
[0063] The preparation of embodiment 3 sesquiterpene crude product
[0064] The acidity of the fermented liquid obtained in Example 2 was adjusted to pH 1.0, and after centrifugation at 3000rpm for 30 minutes, the supernatant was adsorbed with nonpolar macroporous resin AB-8, and the flow rate was 1 / 20 column volume / min. After the end, the resin column was washed with a large amount of water until it was colorless, and then eluted with 20% ethanol solution. The eluate was concentrated in vacuo, and the concentrated solution was freeze-dried to obtain a crude sesquiterpene. The crude product is yellow or light yellow powder, soluble in 40% methanol and ethanol aqueous solution, hot water, pyridine, alkaline solution, and shaking after hot water dissolves to produce relatively persistent foam. Its composition is:
[0065]
[0066] The dry weight of the finally obtained sesquiterpene composition was 2.8 g / L, and the inhibition rate of sesquiterpene at a concentration of 5 mg / ...
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