Medium-chain fatty acids (MCFA) are fatty acids with aliphatic tails of 6 to 12 carbons, which can form medium-chain triglycerides. Long-chain fatty acids (LCFA) are fatty acids with aliphatic tails of 13 to 21 carbonsVery long chain fatty acids. (VLCFA) are fatty acids with aliphatic tails of 22 or more carbons. All esters of MLCFA LCFA are preferezd substrate of lipases