Potential Uses of Scallop Shell Powder as a Substrate for the Cultivation of King Oyster Mushroom (Pleurotus eryngii)

Scallop shells are currently a major form of waste generated in the Chinese fishing industry. However, they have potential to be used as important industrial products. This study was conducted assess utility scallop shell powder (SSP) supplementation improving growth king oyster mushrooms (Pleurotus eryngii) grown on sawdust and sugarcane bagasse substrates. The outcomes interest included mycelial growth, yield, biological efficiency, fruiting body traits, nutrient supply, mineral composition P. eryngii. Supplementation with SSP accelerated yield bodies (399.5 g/bag) efficiency (84.6%) were 14% higher after substrate 2% compared those substrates not supplemented (349.8 g/bag 74.0%, respectively). Moreover, crude protein fiber contents significantly improved SSP. Furthermore, increased calcium (Ca) content eryngii by 64% (to 67.2 ± 15.7 mg kg−1) that control (41.0 kg−1). revealed can efficiently use Ca provided raw SSP, generating their bodies. Our results demonstrate useful for enhancing both nutritional