Effects of the <i>Camellia oleifera </i>Shell Substrate on the Yield and Nutritional Composition of <i>Pleurotus geesteranus</i>
- 1 Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
- 2 Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
- 3 Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
- 4 Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
Abstract
Pleurotus geesteranus was cultivated on the substrates blended with different ratios of treated and untreated Camellia oleifera shells using cottonseed hull as the control substrate. The mycelial growth rate, yield, nutritional composition, ash and heavy metals of the Pleurotus geesteranus cultivated on these substrates were compared. The results suggest that the Camellia oleifera shell in substrate can accelerate the mycelial growth and increase the yield, nutrients and the contents of protein, ash, crude fiber and amino acid of Pleurotus geesteranus . It was found that the contents of tannin and saponin in Camellia oleifera shell affected the mycelial growth rate. The optimal C/N of the substrate for the growth of Pleurotus geesteranus was determined to be 27 ± 0.7. The C/N ratios higher than 30 reduced the protein, fat and soluble sugar contents of the cultivated Pleurotus geesteranus . The contents of heavy metals including Hg, As, Cd and Pb were found in Pleurotus geesteranus cultivated on the substrates containing Camellia oleifera shell complex.
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