Effect of &amp;lt;i&amp;gt;Carya cathayensis Sarg&amp;lt;/i&amp;gt; Shell Substrate on Yield and Nutrient Amount of &amp;lt;i&amp;gt;Pleurotus geesteranus&amp;lt;/i&amp;gt;

Jinping Zhang,Xuebin Li,Yue Ying,Xiaohua Yao

doi:10.4236/gep.2019.711002

Abstract

Using cottonseed hull as the control substrate, different proportions of the untreated and treated Carya cathayensis Sarg shells were added to cultivation of Pleurotus geesteranus. The mycelial growth rate, yield, nutritional composition and contents of heavy metals of the Pleurotus geesteranus cultivated on these substrates were determined. The results suggest that added to treated Carya cathayensis Sarg shell promoted the mycelial growth and increased the yield, biological efficiency and the contents of crude fiber, ash, amino acids and essential amino acids of Pleurotus geesteranus. In addition, the fat content and soluble sugar contents of Pleurotus geesteranus were decreased with the increase of the Carya cathayensis Sarg shell content in substrate, but their contents of heavy metals including mercury (Hg), arsenic (As), cadmium (Cd) and lead (Pb) were higher than that obtained on control substrate.

Highlights

Carya cathayensis Sarg (C. cathayensis) belongs to the genus Carya Nutt. of the Juglandaceae family with a history of 40 - 25 million years
The fat content and soluble sugar contents of Pleurotus geesteranus were decreased with the increase of the Carya cathayensis Sarg shell content in substrate, but their contents of heavy metals including mercury (Hg), arsenic (As), cadmium (Cd) and lead (Pb) were higher than that obtained on control substrate
The overall mycelial growth rate on substrates B1-B4 is higher than that on substrates A1-A4. These results suggest that the C. cathayensis shell added in cottonseed hull substrate can accelerate the mycelial growth of Pleurotus geesteranus

Summary

Introduction

Carya cathayensis Sarg (C. cathayensis) belongs to the genus Carya Nutt. of the Juglandaceae family with a history of 40 - 25 million years. Of the Juglandaceae family with a history of 40 - 25 million years. Carya cathayensis Sarg (C. cathayensis) belongs to the genus Carya Nutt. It is mainly distributed in the Tianmu Mountain area (29 ̊ - 30 ̊N, 118 ̊ - 118 ̊E) along the border of Zhejiang and Fujian provinces in China, centered at Lin’an, Zhejiang Province (Dong et al, 2018). The C. cathayensis fruit is composed of the husk and the dry seed. The shell includes the outer and middle peels of the fruit. The hard-inner shell and nut are called the dry seed.

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Conclusion