| Auricular auricular with very high value of nutrition, health care, is China’s famous foodmedicine and fungi, was deeply loved by consumers at home and abroad. With the increase ofmarket demand and the rapid development of industry, the traditional sawdust is bound to face ashortage of raw materials, looking for sources of richer new matrix has become the importanttopic of Auricular auricular industry development. Jilin province is one of the world three biggolden corn belt, corn cob is rich in resources. So as an important part of national science andtechnology support projects, this paper compared with the traditional sawdust (A), set up threecorn cobs partly replace the traditional wood formula (instead of20%,30%,40%respectively),six main variety of strains, carry out the base of the growth period of extracellular enzymeactivity, utilization of lignocellulose degradation and C/N change and Auricular auriculargrowth characteristics, the determination of output, product traits, quality traits, in order to selectappropriate composite matrix formula and suitable varieties, can provide scientific basis for theresearch of Auricular auricular substrate and form A complete set of cultivation techniques. Thespecific research results are as follows:(1) Auricular auricular growth period could detect lignin, cellulose, hemicellulose, starch(or enzymes) and extracellular enzyme activity, enzyme activity change is essentially the samegeneral trend, but active height varies between substrate and variety; Except peroxidase andamylase, cellulose, hemicellulose and cellulose enzyme activity increased with the increase offruiting body, reached the highest harvest time decline after harvest, and enzyme activity atvegetative stage changes more gently.(2) The degradation of lignocellulose and the change of extracellular enzyme is closelyassociated, and degradation of quantity increase with the increase of enzyme activity. And thesubstrate and variety differences; Each deal with general trend of C/N is falling state, C/Ndecreases as the degradation of lignocellulose, corn cob substitution sawdust ratio, the greaterthe C/N declined more.(3) Different varieties and the matrix formula of Auricular auricular of agronomic traitsand quality were affected. With the increase of cod content in the matrix to promote the growthof hypha, shorten the production cycle, the fruiting body of total sugar and vitamin C also rose,dry wet ratio decreases; Soluble protein content decreased. But high cod content will causepollution rate also will rise. BP15yield is10.31kg, the output of BP7is higher also,10.47kg,.adaptability to new substrate is better. DP10, DP15total sugar content were38.25mg/100g,31.58mg/100g, very significant from other varieties, BP15protein content significantlyin other processing is13.38mg/100g.(4) Comprehensive the above results, select a good composite matrix formula is20%corncobs, sawdust66.5%, wheat bran10%, bean1.5%,1%gypsum,1%lime; Suitable varieties for"black ear4" and "monolithic"5; And integrated innovation of form a complete set of Auricularauricular, composite wood-cod substrate cultivation techniques.(5) In the process of cultivation experiment is formed in the new substrate cultivationtechnology, among them, the preservation of corn cob and preprocessing and hair bacteria phase of the temperature control is particularly important, corn cob to Huang Douli size crushingdegree, in prior prewetting of mixing materials, ensure that open the corn cob is no white hardcore, when the temperature is just right in the late hair bacterium reduce1~2℃, pay attentionto in the late harvest appropriate decrease water. |
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