The effect of particle size and amount of inoculum on fungal treatment of wheat straw and wood chips

Sandra J.A.van Kuijk; Anton S.M.Sonnenberg; Johan J.P.Baars; Wouter H.Hendriks; John W.Cone

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The effect of particle size and amount of inoculum on fungal treatment of wheat straw and wood chips

机译：粒径和接种量对小麦秸秆和木片真菌处理的影响

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Background:The aim of this study was to optimize the fungal treatment of lignocellulosic biomass by stimulating the colonization.Wheat straw and wood chips were treated with Ceriporiopsis subverrmispora and Lentinula edodes with various amounts of colonized millet grains (0.5,1.5 or 3.0 ％ per g of wet weight of substrate) added to the substrates.Also,wheat straw and wood chips were chopped to either 0.5 or 2 cm.Effectiveness of the fungal treatment after 0,2,4,6,or 8 wk of incubation was determined by changes in chemical composition,in vitro gas production (IVGP) as a measure for rumen degradability,and ergosterol content as a measure of fungal biomass.Results:Incomplete colonization was observed for C.subvermispora treated wheat straw and L.edodes treated wood chips.The different particle sizes and amounts of inoculum tested,had no significant effects on the chemical composition and the IVGP of C.subvermispora treated wood chips.Particle size did influence L.edodes treatment of wheat straw.The L.edodes treatment of 2 cm wheat straw resulted in a more selective delignification and a higher IVGP than the smaller particles.Addition of 1.5 ％ or 3 ％ L.edodes inoculum to wheat straw resulted in more selective delignification and a higher IVGP than addition of 0.5 ％ inoculum.Conclusion:Particle size and amount of inoculum did not have an effect on C.subvermispora treatment of wood chips.At least 1.5 ％ L.edodes colonized millet grains should be added to 2 cm wheat straw to result in an increased IVGP and acid detergent lignin (ADL) degradation.

机译：背景：本研究的目的是通过刺激定殖来优化木质纤维素生物质的真菌处理。小麦秸秆和木片分别用Ceriporiopsis subverrmispora和Lentinula edodes处理，并带有不同数量的定植的谷粒（每克0.5、1.5或3.0％然后将麦秸和木片切成0.5或2 cm.0、2、4、6或8 wk孵育后的真菌处理效果由变化决定在化学组成上，体外产气量（IVGP）作为瘤胃降解性的量度，麦角甾醇含量作为真菌生物量的量度。结果：C.subvermispora处理的小麦秸秆和L.edodes处理的木片未观察到定植。不同粒径和接种量的接种，对C.subvermispora处理过的木片的化学成分和IVGP均无显着影响。颗粒大小确实影响了香菇对小麦的处理2 cm小麦秸秆的香菇处理比较小的颗粒具有更高的选择性脱木质素和更高的IVGP。向小麦秸秆中添加1.5％或3％的乳酸菌可以使木质素选择性更高和IVGP更高。结论：接种物的颗粒大小和数量对木屑C.subvermispora处理没有影响。应在2厘米的麦草中加入至少1.5％的香菇定植的谷粒，以产生IVGP和酸性洗涤剂木质素（ADL）降解增加。

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《畜牧与生物技术杂志(英文版)》 |2017年第1期|217-225|共9页
作者
Sandra J.A.van Kuijk; Anton S.M.Sonnenberg; Johan J.P.Baars; Wouter H.Hendriks; John W.Cone;
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Animal Nutrition Group, Wageningen University, De Elst 1, 6708WD Wageningen, The Netherlands;

Plant Breeding, Wageningen University,Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands;

Plant Breeding, Wageningen University,Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands;

Animal Nutrition Group, Wageningen University, De Elst 1, 6708WD Wageningen, The Netherlands;

Animal Nutrition Group, Wageningen University, De Elst 1, 6708WD Wageningen, The Netherlands;

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The effect of particle size and amount of inoculum on fungal treatment of wheat straw and wood chips

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