Aspergillus niger culture method and application thereof in catalytic synthesis of white spirit flavor ester
A cultivation method, the technology of Aspergillus niger, which is applied in the field of microorganisms, can solve the problems of slow ester production, low synthesis efficiency, long fragrance production cycle, etc.
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[0023] 1. Solid plate culture: Prepare a PDA solid medium plate, take Aspergillus niger CGMCC 3.4309, inoculate it with an inoculation needle by spotting method, and cultivate it in a constant temperature incubator at 30±1°C for 4–8 days.
[0024] The preparation method of the PDA medium is: first wash and peel the potatoes, then weigh 200g potatoes and cut them into small pieces, add water and boil for 20-30 minutes, filter with eight layers of gauze, heat, then add 15-20g agar , continue heating and stirring to mix evenly, after the agar is dissolved, add glucose, stir evenly, and then replenish the water to 1000ml after cooling down, divide into Erlenmeyer flasks, stopper, bandage, sterilize at 115°C for about 20 minutes, then take out and pour into Sterile Petri dishes, cool and store for later use.
[0025] 2. Liquid fermentation culture: Under aseptic conditions, inoculate the solid plate culture Aspergillus niger into a 300 mL Erlenmeyer flask containing 100 mL of ferme...
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