Growth of Pleurotus ostreatus on wheat straw and wheat-grain-based media:: biochemical aspects and preparation of mushroom inoculum

被引:29
作者
Sainos, E.
Diaz-Godinez, G.
Loera, O.
Montiel-Gonzalez, A. M.
Sanchez, C. [1 ]
机构
[1] Univ Autonoma Tlaxcala, CICB, Biotechnol Lab, Tlaxcala, Mexico
[2] Univ Autonoma Tlaxcala, Maestria Ciencias Biol, Tlaxcala, Mexico
[3] Univ Autonoma Metropolitana, Mexico City, DF, Mexico
关键词
D O I
10.1007/s00253-006-0363-0
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Mycelial growth, intracellular activity of proteases, laccases and beta-1,3-glucanases, and cytoplasmic protein were evaluated in the vegetative phase of Pleurotus ostreatus grown on wheat straw and in wheat-grain-based media in Petri dishes and in bottles. The productivity of the wheat straw and wheat-grain-based spawn in cylindrical polyethylene bags containing 5 kg of chopped straw was also determined. We observed high activity of proteases and high content of intracellular protein in cultures grown on wheat straw. This suggests that the proteases are not secreted into the medium and that the protein is an important cellular reserve. On the contrary, cultures grown on wheat straw secreted laccases into the medium, which could be induced by this substrate. P. ostreatus grown on media prepared with a combination of wheat straw and wheat grain showed a high radial growth rate in Petri dishes and a high level of mycelial growth in bottles. The productivities of wheat straw and wheat-grain-based spawn were similar. Our results show that cheaper and more productive mushroom spawn can be prepared by developing the mycelium on wheat straw and wheat-grain-based substrates.
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页码:812 / 815
页数:4
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