A Preliminary Study on the Alternative Optimized Formula of Soybean Meal for the Industrialized Production of Pleurotus pulmonarius
[Objective]According to the local resource and cost advantages of the cultivation substrate of Pleurotus pulmonarius in Fujian,the industriaiizedl production formula of Pleurotus pulmonarius was optimized to reduce the high dependence on soybean meal,reduce and stabilize the production cost of industrialized cultivation of mushroom.[Method]A total of 12 groups of cultivation formulas were set up using cottonseed husk,miscellaneous sawdust,eucalyptus bark,bran,corn flour,soybean meal,soybean skin,bagasse and other cultivation formula components,among which the conventional cultivation formula supplemented by commonly used soybean meal raw materials as nitrogen source(30％cottonseed husk,20％miscellaneous sawdust,20％eucalyptus bark,20％bran,5％corn flour and 3％soybean meal)was used as the control.Liquid strain of'Xiuzhen 57'was inoculated and the management of fungus and mushroom production were conducted.The mycelial growth rate,the yield of the first and second fruiting periods and the total yield of the two fruiting periods among formulas were tested and compared,and the optimized formula of industrialized production that could replace soybean meal was screened.[Result]An optimized formula of industrialized production(formula with moderate proportion of cottonseed husk and eucalyptus bark:34％cottonseed husk,20％miscellaneous sawdust,24％eucalyptus bark,20％bran,1％lime and 1％gypsum)were screened out.Compared with the conventional cultivation formula,the mycelial growth rate increased by 0.05 cm/d,which was significantly different using formula with moderate proportion of cottonseed husk and eucalyptus bark.The yield of the first fruiting period and the total yield of the two fruiting periods increased by 6.96％and 11.95％,respectively.The total yield of the two fruiting periods increased significantly.[Conclusion]This optimized formula does not require soybean meal and its yield and mycelial growth rate are superior to that of the control group,which has potential value of production and utilization of industrialized production of Pleurotus pulmonarius to improve production benefits.
万方数据
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