Changes of Nutrients in Media and Mycelia on Liquid Spawn Culture of Lentinula edodes
2014
Shim, K.K., ParoTech, Hwaseong, Republid of Korea | Yoo, Y.J., Jeollabuk-do Agricultural Research and Extension Services, Jeonju, Republic of Korea | Koo, C.D., Chungbuk National University, Cheongju, Republic of Korea | Kim, M.K., Chonbuk National University, Jeonju, Republic of Korea
Lentinula edodes liquid spawn growth under explosive aeration (supplying air with tiny bubbles) and soybean meal addition to liquid culture medium were investigated in terms of mycelial growth and residual free sugar content. The two treatments were effective for homogeneous culturing of mycelial spawn and for separating colonies during multiplication after an exponential growth period without limiting sustaining nitrogen nutrients. The mycelial growth and carbon dioxide concentration were greatest on the 13th day since the inoculation. At 12th day, however, free sugars were almost depleted in the upper part of the liquid medium. Total nitrogen content within precipitated mycelia was the highest at the 13th day. Chitin and sucrose contents in the mycelia were the highest at the 18th day, but ergosterol content became highest at 22 days. These results suggest that Lentinula edodes liquid spawn is ready in 18 days after inoculation.
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