Palmitoleic acid is formed from palmitic acid through the enzyme delta-9 desaturase (SCD1).

“if you look at the very you know unfriendly diagrams of fatty acid metabolism one of the first steps we see in the conversion of or elongation of fatty acids is the conversion of c 16 0 palmitic acid into c uh 16 1 palmitoleic acid n7 through an enzyme that has two names i guess depending on the name nomenclature right so delta nine desaturates desaturate the number nine carbon from the delta end also known as sterile coa uh saturates a desaturate which i think is the more popular name is is scd-1”