After gamma irradiation, the color of the ethanolic extracts of aloe gel
changed to red; this color persisted up to 40 kGy but disappeared above 50 kGy. Liquid chromatography/mass spectrometry analysis demonstrated the production of a new, unknown compound
(m/z¼132) after gamma irradiation of the ethanolic extracts of aloe gel. The amount of this unknown
compound in creased with increasing irradiation up to 80 kGy,