The fatty acid profiles of the samples were consistent
with literature values (Table 2). The A/V blend and
yellow grease samples provided had fatty acid profiles
very similar to soybean oil, suggesting they were based
on soybean oil (soybean oil might have been the major
component). However, there were quality indicators
that distinguished the samples (Table 3). The A/V blend
had much lower FFA levels and a much higher initial