The production of hemicellulases by aerobic fungi on medium containing residues of banana plant as substrate

被引:27
作者
Medeiros, RG
Soffner, MLAP
Thomé, JA
Cacais, AOG
Estelles, RS
Salles, BC
Ferreira, HM
Neto, SAL
Silva, FG
Filho, EXF [1 ]
机构
[1] Univ Brasilia, Lab Enzimol, Dept Biol Celular, BR-70910900 Brasilia, DF, Brazil
[2] Univ Sao Paulo, ESALQ, Dept Ciencias Florestais, BR-13418200 Sao Paulo, Brazil
关键词
D O I
10.1021/bp0000398
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
Trichoderma harzianum strains T4 and T6, Acrophialophora nainiana, and Humicola grisea var. thermoidea were screened for their ability to produce carbohydrate-degrading enzyme activities in a medium containing banana plant residue as the carbon source. The best balance of enzyme activities was obtained from cultures of H. grisea var. thermoidea. Xylanase activity from crude extract of A. nainiana had a maximum activity at pH 5.5-7.0 and a temperature range of 50-55 degrees C. It was stable up to 55 degrees C at pH 7.0 for at least 2 h. The fungi were also able to produce xylanase and pectinase activities when grown on extractives as substrate.
引用
收藏
页码:522 / 524
页数:3
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