Processes
have been developed to produce oils that are both low in
TFA and also saturated fatty acids and are based on use of blends
of oils, including palm oil and liquid seed oils such as sunflower
seed oil or rapeseed oil, with processes including combinations of
fractionation (crystallisation of solid fat molecules and separation
from liquid molecules), interesterification (rearrangement of the
structure of the fat molecules to make the fat more solid) and full
hydrogenation of liquid oils.