期刊
BIORESOURCE TECHNOLOGY
卷 186, 期 -, 页码 15-24出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.03.059
关键词
Composting inoculation; Microbial catalysts; Organic matter turnover; Polymeric compounds decomposition; Composting microbiota stimulation
资金
- Spanish Ministerio de Ciencia e Innovacion project [AGL2009-08405]
Enhanced organic matter turnover was detected in lignocellulosic composting piles inoculated with microorganisms specifically capable of decomposing polymeric compounds. In comparison to uninoculated piles, the following results were obtained in the inoculated piles: degradation of hemicellulose, cellulose and lignin were 28%, 21% and 25% respectively higher. Total organic matter, total sugars and phenolic compounds also decreased more intensely. Greater amounts of soluble organic carbon, reducing sugars and soluble proteins were available to the composting microbiota. Recycling of organic to inorganic nitrogen was improved and humification was more intense and earlier attained. Microbial community structure was also affected by inoculation. It was initially thought that these effects were due to enzymatic capabilities of inoculants, however, microbial counts, especially those corresponding to functional groups, revealed that inoculation induced a true stimulation of microbial growth and activity in the entire composting microbiota which was actually responsible for all the beneficial effects reported here. (C) 2015 Elsevier Ltd. All rights reserved.
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