Yes thats what I have also known from others to keep the oils up! These essential oils are taken out of all foods so they can preserve them for the shelfs.
I have read a little about protocel in the past and they say not to combine with other antioxidant supplements, but what about all natural super foods like, greens, ricebran, goji, etc? It seems this protocel has like a 1 Million ORAC value the closest thing I know is certain grape oil and flour like that proced by http://www.botanicoils.com out of Wisconsin has about 150000. Look at purchasing the Immuno Oil as I know of the head Dr. at the Uof MN of surgery and teaching. This oil has had good results for cancer patients going the chemo/rad route. It seems to be a better oil then flaxoil. But Dr. Budwig only used flaxoil as these oils weren't being produced back then.
Please keep us posted if he does start to use the Protocel in his routine.