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Optimal Conditions of Mycelia Growth of Laetiporus sulphureus sensu lato

Summary

This research focused on finding the best growing conditions for an edible mushroom called Laetiporus sulphureus in Thailand. The study determined optimal temperature, acidity levels, and growing materials needed to successfully cultivate this nutritious mushroom. This research is important because: • It provides a scientific foundation for commercial cultivation of an edible mushroom species • It helps preserve traditional food knowledge while modernizing cultivation techniques • It could lead to increased availability of a nutritious food source • It supports sustainable agriculture by utilizing agricultural waste products as growing medium • It contributes to economic development by enabling local mushroom farming

Background

Laetiporus sulphureus is an edible wood-rotting basidiomycete that grows on decaying logs, stumps, and trunks of deciduous and coniferous trees. It produces large yellowish or orange-colored bracket-like fruitbodies and is widely consumed as a nutritional food due to its fragrance and texture. The fungus contains various bioactive compounds including polysaccharides with antitumor, antiviral, and immunomodulating properties.

Objective

To evaluate the optimal culture conditions for mycelia growth of Thai strains of Laetiporus sulphureus, including determining the best growth media, temperature, pH, and spawn production substrates.

Results

PDA and MEA were found to be the most favorable media for mycelia growth. The optimal temperature range was 25-30°C, and optimal pH range was 6-8. For spawn production, sorghum grains and pearl millet showed the best results for mycelial growth, particularly when mixed with gypsum and CaCO3.

Conclusion

The study established optimal growth conditions for Thai L. sulphureus strains: PDA and MEA as culture media, temperature of 25-30°C, pH of 6-8, and sorghum as the spawn medium. These findings suggest good potential for domestication of local Thai strains of L. sulphureus.
  • Published in:Mycology,
  • Study Type:Laboratory Research,
  • Source: 10.1080/21501203.2014.957361
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