木质素过氧化物酶在白地霉对黑橄榄榨油废水脱色中的作用。
Involvement of lignin peroxidase in the decolourization of black olive mill wastewaters by Geotrichum candidum.
作者信息
Ayed L, Assas N, Sayadi S, Hamdi M
机构信息
Institut National des Sciences Appliquées et de Technologie (INSAT), Boulevard de la terre, Tunis, Tunisia.
出版信息
Lett Appl Microbiol. 2005;40(1):7-11. doi: 10.1111/j.1472-765X.2004.01626.x.
AIM
Decolourization of black olive mill wastewaters (OMW) by depolymerization of phenolic compounds by Geotrichum candidum.
METHODS AND RESULTS
Our results show that G. candidum is able to grow on black OMW supplemented with carbon source and nitrogen. The Geotrichum growth decreased the pH and induced a 49% of colour removal when the black OMW was supplemented with glycerol and diammonium tartrate (20 mm ammonium). An improvement of 10% of colour removal was observed when the culture was supplemented with veratryl alcohol. The decolourization was inhibited with glutamate as nitrogen source.
CONCLUSION
Our results suggest the potential use of G. candidum in black OMW decolourization and support the concept that lignin peroxidase (LiP) of G. candidum is involved in the depolymerization of phenolic compounds.
SIGNIFICANCE AND IMPACT OF THE STUDY
This is the first report of LiP production by G. candidum on OMW.
目的
通过白色念珠地霉对酚类化合物进行解聚，使黑橄榄榨油废水（OMW）脱色。
方法与结果
我们的结果表明，白色念珠地霉能够在添加了碳源和氮源的黑色OMW上生长。当黑色OMW添加甘油和酒石酸二铵（20 mM铵）时，白色念珠地霉的生长降低了pH值，并使脱色率达到49%。当培养物添加藜芦醇时，脱色率提高了10%。以谷氨酸作为氮源时，脱色受到抑制。
结论
我们的结果表明白色念珠地霉在黑色OMW脱色方面具有潜在应用价值，并支持白色念珠地霉的木质素过氧化物酶（LiP）参与酚类化合物解聚的观点。
研究的意义和影响
这是关于白色念珠地霉在OMW上产生LiP的首次报道。
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