an aliphatic alcohol + a fatty acid + H(+) => a fatty acid ester + H2O
an aliphatic alcohol + a fatty acid + h(+) => a fatty acid ester + h2o
an aliphatic alcohol + a fatty acid + H(+) => a fatty acid ester + H2O
an aliphatic alcohol + a fatty acid + h(+) => a fatty acid ester + h2o