This decrease is due to textural changes caused by synthesising
nonylphenol ethoxylated with n = 4 and n = 6, since n = 6 generated
a support with a more accessible area and therefore a higher yield
in the reaction. These values are much higher than those reported
in the literature using these supports, where the synthesis of
biodiesel via Candida antarctica B lipase was between 60% and 70%
with this same type of oil [19,31–34]. Biodiesel production using
branched and lineal chain alcohols such as methanol, ethanol,
propanol, 2,2-dimethyl-1-propanol and 2-methyl-1-butanol, were
also tested. The results show that the yields of biodiesel produced
using the biocatalysts FC-4 and FC-6 were in the following
order: 3-methyl-1-butanol > 2-methyl-1-butanol > 2,2-dimethyl-
1-propanol > propanol > ethanol > methanol.