Application of hericium erinaceus mutant strain H07 in preparation of memory improvement medicine
A technique for mutagenizing bacterial strains and Hericium erinaceus, applied in drug combinations, methods based on microorganisms, fungi, etc., to increase the number of times, significant medical effects, and improve memory
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Embodiment 1
[0017] Grind 1000g of Hericium erinaceus mutagenic strain H07 mycelium extract (strain number: CCTCC NO: M 2014669), pass through a 100-mesh sieve, and extract with water for 3 time, 4 hours for the first time, 3 hours for the second time, and 2 hours for the third time, combine the three water extracts, centrifuge at 4000 rpm for 5 minutes, discard the precipitate, and then filter with a 200-mesh filter cloth to obtain the filtrate. The filtrate was concentrated under reduced pressure to a relative density of 1.00 (70°C), and the concentrated solution was freeze-dried at -30°C for 72 hours to obtain 93.40 g of mycelia extract of Hericium erinaceus mutagenized strain H07.
Embodiment 2
[0019] Crush 1000g of Hericium erinaceus mutagenic strain H07 mycelium extract (strain number: CCTCC NO: M 2014669), pass through a 100-mesh sieve, and extract with water 3 times at a solid-liquid mass ratio of 1:60 at a temperature of 80°C , 3 hours for the first time, 2 hours for the second time, and 1 hour for the third time, combine the three water extracts, centrifuge at 5000 rpm for 10 minutes, discard the precipitate, and then filter with a 300-mesh filter cloth to obtain the filtrate. The solution was concentrated under reduced pressure to a relative density of 1.20 (80°C), and the concentrated solution was freeze-dried at -60°C for 48 hours to obtain 101.91 g of mycelia extract of Hericium erinaceus mutagenized strain H07.
[0020] In order to prove whether the mycelia extract of Hericium erinaceus mutagenized strain H07 of the present invention has the function of improving memory and improving cognitive function, the new application will be shown by the following e...
experiment example 1
[0022] Mouse Morris water maze (Morris water maze, MWM) experiment
[0023] The Hericium erinaceus mutagenic strain H07 mycelia extract prepared in Example 2 is made into low-dose group, middle-dose group, high-dose group with concentration of 0.3g / kg, 1g / kg, 3g / kg with deionized water dose group. The oral gavage dose of the tested mice, that is, the oral gavage dose of the 20±2g body weight test mice was 0.2mL / 20g, while the blank control group was orally gavaged with an equal volume of normal saline, every day Both were administered by intragastric administration, and after continuous intragastric administration for 7 days, the mice were placed in a water maze tester, and after training for several times, the time for the mice in each group to find the platform was measured. Set 4 blind ends in the water maze tester (Morris), which has been widely recognized in the world. According to the order from near to far from the exit, it is 4 areas, 3 areas, 2 areas, and 1 areas. ...
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