Interferência da lignina na quantificação de radicais livres no processo de compostagem

Química Nova

Lucimar Lopes Fialho²  Wilson Tadeu Lopes Da Silva¹  Débora M. B. P. Milori¹  Marcelo Luiz Simões¹  Ladislau Martin-neto¹  Sérgio Da Costa Saab¹ 

[1] ,Embrapa Instrumentação AgropecuáriaSão Carlos SP

关键词: composting;    lignin;    EPR;   

DOI  :  10.1590/S0100-40422010000200024

来源: SciELO

【 摘 要 】

In this work was studied composts and their humic acids (HA) to evaluate the use of EPR in the monitoring of the humification. It was observed increase in the concentration of organic free radical (OFR) in all the composts, but in L1 the increase was more significant than L2 and L3. Research more detailed of L1 showed that the lignin is main source of OFR. Then determination of these radicals in material in nature that contains high amount of lignin isn't a good indicator to monitor the humification process in the composting and yes the fraction HA of the composts.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License