The presence of an interaction can be concluded from elimination of endothermic peaks, appearance of new peaks, change in peak shape and onset, peak temperature/melting point, and relative area or enthalpy.
Despite the twin-peak appearance of the PS QTL plot, a two-QTL model for LS was not significantly better than a one-QTL model.
The appearance probability (defined as number of peak appearance times/total number of acquired spectra × 100%%) of each peak (macromolecule) was also calculated in 40 50 SERS spectra for each sample to reflect the macromolecular content in single bacterial cells or biofilm matrix in one specific phase.
Analysis of the second Bi-2SA fraction after digestion once again revealed the disappearance of the original peak, the appearance of a new peak at 31.5 min, and the mass of the new glycan corresponding to a Bi-SA structure.
No decrease in the m/z 557 peak, or appearance of the m/z 791 peak, could be observed after treatment with α-glucosidase or β-galactosidase, which lead us to conclude that the novel product is artemisinic acid-12-β-diglucoside.
These differences included considerable shifts in the energies of the peaks and appearance of some peaks in the DOS of the studied systems.
The spectra of degraded metabolites showed disappearance of the major minor peaks and appearance of new peaks at 355 nm, respectively, indicating degradation of MG by strain GGUPV1.
In this context, the visual comparison involves comparing the distance between the peaks and appearance of the peaks as detected before and after preprocessing.
In an another study Sondi and Salopek-Sondi [ 13] reported the surface Plasmon band at 405 nm; at this peak the appearance of brown color clearly indicates the formation of AgNPs.
While comparing the FTIR spectra of unreduced silver nitrate and biosynthesized AgNPs, disappearance of certain peaks and appearance of some new peaks was observed.
During absorption or adsorption, the intensity of this peak decreases with course of time but during degradation, there is disappearance of this peak with concomitant appearance of some new peaks, which correspond to various metabolites produced during degradation of MG.
