Effects of Aeration of Sawdust Cultivation Bags on Hyphal Growth of Lentinula edodes.
- Author:
Hwa Yong LEE
1
;
Eun Ju HAM
;
Young Jin YOO
;
Eui Sung KIM
;
Kyu Kwang SHIM
;
Myung Kon KIM
;
Chang Duck KOO
Author Information
1. Department of Forest Science, Chungbuk National University, Cheongju 361-763, Korea. koocdm@chungbuk.ac.kr
- Publication Type:Original Article
- Keywords:
CO2 concentration;
Hyphal growth;
Lentinula edodes;
Medium weight loss;
Sawdust bag cultivation
- MeSH:
Lentinula;
Plastics;
Shiitake Mushrooms;
Sprains and Strains;
Weight Loss
- From:Mycobiology
2012;40(3):164-167
- CountryRepublic of Korea
- Language:English
-
Abstract:
The effects of aeration through lid filters on the hyphal growth of Lentinula edodes (oak mushroom) in sawdust cultivation bags were investigated. The aeration treatment levels were traditional 27 mm hole cotton plugs, cotton balls and combinations of seven hole sizes x two hole positions (up and under) in the lids covering plastic bags containing 1.4 kg sawdust medium at 63% moisture that had been autoclaved for one hour and inoculated with sawdust spawn of L. edodes strain 921. Aeration treatment effects were measured based on the CO2 concentration at the 15th wk, as well as the hyphal growth rate and degree of weight loss of bags every 14 days for 15 wk. In bags with traditional cotton plugs, the CO2 concentration was 3.8 +/- 1.3%, daily mean hyphal growth was 2.3 +/- 0.6 mm and daily mean weight loss was 0.84 +/- 0.26 g. In the bags with 15 mm diameter holes, the CO2 concentration was 6.0 +/- 1.6%, daily hyphal growth was 2.8 +/- 0.2 mm and daily weight loss was 0.86 +/- 0.4 g. The bags with 15 mm holes had a higher CO2 concentration and lower water loss than bags with other hole sizes, but the hyphal growth was not significantly different from that of other bags. The weight loss of bags increased proportionally relative to the lid hole sizes. Taken together, these results indicate that traditional cotton plugs are economically efficient, but 15 mm hole lids are the most efficient at maintaining hyphal growth and controlling water loss while allowing CO2 emissions.
