. "The chemical reactions and pathways resulting in the formation of fatty acids with a chain length of less than C6." . . . "short-chain fatty acid biosynthetic process" . "short chain fatty acid biosynthesis" . "short chain fatty acid biosynthetic process" . "short-chain fatty acid anabolism" . "short-chain fatty acid biosynthesis" . "short-chain fatty acid formation" . "short-chain fatty acid synthesis" . . . . .