noun, noun or participle which takes 'suru'
Technical term in chemistry for adding hydrogen to a compound. Often used with する to mean 'to hydrogenate'.
See also: 水素化
不飽和脂肪酸を水素添加すると、飽和脂肪酸になる。
When unsaturated fatty acids are hydrogenated, they become saturated fatty acids.
In this reaction, hydrogenation is carried out using a catalyst.