'chemical alteration' is correct and usable in written English.
It typically refers to a change of a substance caused by chemical reactions. For example: "The chemical alteration of oxidized iron has a significant effect on its corrosion rate."
Chemical alteration of an ingredient is presumed to alter its biologic behavior and hence a separate safety assessment is required to establish reasonable expectation of safety or that the altered ingredient is comparable to the native ingredient in relevant characteristics.
Our data suggest that Edc3 can chemically alter NAD because its incubation with either human or yeast Edc3 leads to chemical alteration of NAD in a manner dependent on the ligand-binding pocket.
Not me, personally — my hold on reality is tenuous enough without chemical alteration.
Landslides will break up particles, as will chemical alteration of rocks exposed at the surface.
It is both metaphorical and biological; it is hunger for emotion and chemical alteration.
Fine-grain rock will usually be more susceptible to chemical alteration but less susceptible to physical disintegration.
Judge Lourie found this chemical alteration to be dispositive, because isolating a particular strand of DNA creates a nonnaturally occurring molecule, even though the chemical alteration does not change the informationtransmitting quality of the DNA.
"New 'living additive manufacturing' technique enables fusion, chemical alteration of 3D printed materials" 3Ders.org 2017, January 13th.
Here, the authors identified a coupled mechanical-chemical mechanism beginning with biomechanical weathering followed by the chemical alteration of the biotite lattice structure at the fungal-mineral interface.
These crusts are not of themselves landforms but represent the chemical alteration of the upper parts of plains and other features of low relief.
At 600 °C, the grain underwent chemical alteration (Supplementary Figure 3), likely through a reaction with the surrounding olivine, as the TEM operates in high vacuum.
