When face formatting (e.g., italics) is applied to an entire element (e.g., a journal title), you will find that the element is displayed with this format in your Edifix results, but XML exported from Edifix does not include format tags.
This is because Edifix returns “good” XML (which includes semantic tagging only) rather than “display” XML (which can include some non-semantic formatting). “Good” XML allows more downstream flexibility in transformation and display.
Currently we are looking into potentially adding the option to export either “good” or “display” XML. If a “display” XML export option would be useful to you, please let us know!