Translation guide
The process of adding hydrogen to a compound, typically to saturate unsaturated bonds. In Japanese, this is expressed with the technical term 水素化 (すいそか) or the loanword 水素添加 (すいそてんか).
To refer to the chemical reaction where hydrogen is added to a molecule, often to convert unsaturated fats to saturated fats or in industrial processes.
Liquid oil turns into solid fat through hydrogenation.
Hydrogenated oils are used in margarine.
In this process, hydrogen is added to the oil.