Effect of Two Kinds of Substrate on Extracellular Enzyme Activity, Yield and Quality of Pleurotus ostreatus
HU Sujuan
DUAN Yakui
KANG Yuanchun
YUAN Ruiqi
ZHANG Yuting
MENG Qingtao
KONG Weili
Abstract：Pleurotus ostreatus was cultivated with cotton seed hulls and corn cob with the corresponding C/N of 34:1 and 45:1.The activities of CMC enzyme,xylanase,protease,and laccase at different stages were measured,and the effect on production and biological efficiency was analyzed.The results showed that two kinds of substrates didn't affect the variation trend of extracellular enzyme activity,but affected its level.The activities of CMC enzyme,laccase,and xylanase of cotton seed hull were higher than that of corn cob,and neutral protease activity was 5.7 times higher than that of corn cob.The total number of amino acids of cotton seed hulls matrix was 152.2 mg/g,4.7 mg/g more than that of corn cob,and ash content was 59.0 mg/g,19.0 mg/g less than that of corn cob.There was no significant difference between cotton seed hull and corn cob in crude protein(204.0 mg/g),crude fat(30.0 mg/g),and crude fiber (77.9 mg/g).The yield and biological efficiency of Pleurotus ostreatus cultivated on cotton seed hull were 878.0 g/bag and 58.5% respectively,250.5 g/bag and 16.7 percentage points higher than that of corn cob.
Keywords：Pleurotus ostreatusCotton seed hullCorn cobEnzyme activityYieldQuality
Publication Date：2018-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 96-99 )