"a chemical process that adds hydrogen atoms to an unsaturated oil; \"food producers use hydrogenation to keep fat from becoming rancid\""@en-us . . "13494707-n"^^ . . . . "0"^^ . . "0"^^ . "hydrogenation"^^ . "112731122"@en-us . "hydrogenation"@en-us . . . "113494707"^^ . "a chemical process that adds hydrogen atoms to an unsaturated oil; \"food producers use hydrogenation to keep fat from becoming rancid\""@en-us . . . .