Effects of different heat pre-treatments of wheat straw on its microbial activity and colonization by different tropical and sub-tropical edible mushrooms
✍ Scribed by R. Maziero; F. Zadrazil
- Publisher
- Springer
- Year
- 1994
- Tongue
- English
- Weight
- 554 KB
- Volume
- 10
- Category
- Article
- ISSN
- 1573-0972
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✦ Synopsis
Quantitative
differentiation of microbial activity in wheat straw substrate is described after different heat pre-treatments and addition of water during solid-state fermentation. All the 28 tested strains of tropical and sub-tropical edible mushrooms colonized sterile wheat straw. Substrate pre-treated at 25°C was primarily colonized by Coprims sp. and other competitive microorganisms, and had the highest pH values. With some exceptions, increasing rates of growth occurred with substrate pre-treatment at 60 and 90°C. Best growth and highest speed of colonization were on sterilized straw. Heat pre-treatment of cereal straw at 60 and 90°C should be sufficient for commercial cultivation processes. Thus, a short fermentative pretreatment could reduce the risk of infection. The strains tested do not differ significantly from those of temperate climates.