Effect of high-efficiency instant sterilization technology on the substrate of Pleurotus ostreatus cultivation
In order to explore the impact of high-temperature instantaneous sterilization technology on the substrate of Pleurotus ostreatus cultivation,and seek better processing technology for its raw materials,this study used self-made screw to carry out high-temperature instantaneous sterilization treatment on its cultivation raw materials.Fourier trans-form infrared spectrometer and X-ray diffractometer were used to analyze the structure of the treated substrate.The changes of nutritional components of P.ostreatus cultivation raw materials before and after treatment were compared by using the content of lignocellulose components as indicators.At the same time,the changes of physical properties such as water holding capacity,bulk density and specific surface area were also evaluated.The results showed that after high-temperature instantaneous sterilization treatment,the chemical composition of P.ostreatus cultivation materials did not change in infra-red spectroscopy analysis,but the content of its components changed.X-ray diffraction analysis showed that its crystallinity increased.In addition,the water holding capacity after treatment increased to 3.76 g·g-1,an increase of 72％compared with before,and the specific surface area increased to 6.31 g·mL-1,an increase of 30％.At the same time,bulk density and swelling also changed significantly.In terms of nutritional components,the content of cellulose and lignin decreased from 31.79％,12.02％to 29.22％,9.95％respectively.These results indicated that high-temperature instantaneous sterilization technology improved the structural characteristics of P.ostreatus cultivation materials,which provides a theoretical basis for better utilization of cultivation materials.
NETL
NSTL
万方数据
