“…The loss of a-tocopherol during processing was 23.3%. In polyolefins, atocopherol and its transformation products provide excellent melt processing stability by acting as a hydrogen-atom donor, oxygencentered radical scavenger, and as a carbon-centered radical scavenger; therefore, a-tocopherol concentration may decrease during the extrusion process (Granda-Restrepo et al, 2009;Müller, Voigt, & Ghosh, 2001).…”