ABSTRACTTrace elements are associated with the microbial degradation of organic matter and methanogenesis. as enzymes in metabolic pathways often employ trace elements as essential cofactors. However. only a few studies investigated the effects of trace elements on the metabolic activity of microbial communities associated with biogenic coalbed methane production. https://parisnaturalfoodes.shop/product-category/wintergreen-toothpaste/