不同菌种对甘草渣降解的影响研究

A Study on Effects of Different Strains on the Glycyrrhiza Waste Residue Degradation

试验以白腐真菌(5.776和1.334)和康宁木霉(3.277 4)为供试菌株,甘草渣为试验发酵样品。通过5.776+3.2774、1.334+3.277 4混合接种及三菌株单独接种培养。研究不同菌株处理在甘草渣降解过程中对木质素降解酶、纤维素酶和半纤维素酶活性的影响和木质素、纤维素及半纤维素降解效果。实验结果表明:5.776+3.277 4混合接种培养处理在提高酶活和木质素、纤维素和半纤维素方面均表现出较好的优势。经发酵30 d后,5.776+3.277 4混合接种处理的木质素、纤维素和半纤维素的降解率达到38.52%、52.36%和59.59%。

In this paper, glycyrrhiza waste residues were degraded with white- rot fungi （5.776 and 1. 334） and Trichoderma koningii{3. 277 4） separate culture inoculation and 5. 776 ＋ 3. 277 4, 1. 334 ＋ 3. 277 4 mixed strains inoculation. The effects of different strains on the activities of lignin - degrading enzyme, cellulase and hemicellulose enzyme and the degradation rate of lignin, cellulase and hemieellulose during the ferment of glyeyrrhiza waste residues were studied. The results showed that 5.776 ＋ 3. 277 4 mixed strains inoculation were a good advantage in improving the activity and degrading rate of lignin, cellulase and hemieellulose. After fermentation for 30 days, the degradation rate of lignin, cellulase and hemicellulose were respectively 38. 52%, 52.36% and 59.59% under 5.776 ＋ 3.277 4 mixed strain inoculation.