Most of the compounds positively identified by the SPME technique were also detected with PTR-MS, theugh the relative amounts of the identified compounds differed significantly between the two techniques.
To exclude sensitivity and contamination artifacts all data analyses were conservatively limited to compounds positively identified in the inflow and in all residual samples (361 individual peaks).
Evaluating the extent to which environmental compounds positively or negatively modulate metabolic features will significantly further our understanding of the non-genetic origin of metabolic diseases.
Recently, Lesterhuis et al. described that platinum compounds positively affect the immunostimulatory potential of myeloid DCs by impairing the upregulation of PD-L2 [ 24].
Both Caldicellulosiruptor species performed better in batch growth in the presence of each other's supernatant, which clearly indicate that both species excrete compounds positively affecting the other one.
Gentiobiose and the unknown compound were positively correlated with sorbitol accumulation.
The compound responded positively to the ferric chloride test indicating the presence of phenolic –OH group, which further confirmed with the broad peak at 3510 cm−1 in the IR spectrum.
The majority of acetates (a02, a04-a13), non-acetate esters (b03, b05, b07, b08, b11-b14, b16, b18), diacetates g02-g055, g09, g09), sulphur-containing compounds (c02, c05-c08 and h01-h05), severalcoholsols d02-d055, d07, i01, i02, i07) and a few other compounds were positively correlated with the first axis.
70 of these compounds are positively charged, 75 are neutral and 7 are negatively charged.
The progression of the reaction results in a decrease of conductivity as charged compounds (a positively charged amine and a negatively charged keto acid) are converted to non-conducting products (a non-charged ketone and a zwitterionic amino acid).
